ID

VAR-200810-0446

CVE

CVE-2008-4771

TITLE

Various IP Security Camera ActiveX Controls 'url' Attribute Buffer Overflow Vulnerability

DESCRIPTION

Stack-based buffer overflow in VATDecoder.VatCtrl.1 ActiveX control in (1) 4xem VatCtrl Class (VATDecoder.dll 1.0.0.27 and 1.0.0.51), (2) D-Link MPEG4 SHM Audio Control (VAPGDecoder.dll 1.7.0.5), (3) Vivotek RTSP MPEG4 SP Control (RtspVapgDecoderNew.dll 2.0.0.39), and possibly other products, allows remote attackers to execute arbitrary code via a long Url property. NOTE: some of these details are obtained from third party information. Various IP Security Camera ActiveX controls are prone to a remote buffer-overflow vulnerability because the applications fail to properly bounds-check user-supplied data before copying it into insufficiently sized memory buffers. Exploiting this issue may allow remote attackers to execute arbitrary code in the context of applications that use the affected ActiveX control (typically Internet Explorer) and to compromise affected computers. Failed attempts will likely result in denial-of-service conditions. 4XEM VatCtrl Class ('VATDecoder.dll') 1.0.0.51. Vivotek RTSP MPEG4 SP Control ('RtspVapgDecoderNew.dll') 2.0.0.39. UPDATE (March 25, 2008): D-Link MPEG4 SHM Audio Control ('VAPGDecoder.dll') 1.7.0.5 identified by CLSID: A93B47FD-9BF6-4DA8-97FC-9270B9D64A6C is being actively exploited in the wild. ---------------------------------------------------------------------- A new version (0.9.0.0 - Release Candidate 1) of the free Secunia PSI has been released. The new version includes many new and advanced features, which makes it even easier to stay patched. Download and test it today: https://psi.secunia.com/ Read more about this new version: https://psi.secunia.com/?page=changelog ---------------------------------------------------------------------- TITLE: 4XEM VatDecoder VatCtrl Class ActiveX Control "Url" Property Buffer Overflow SECUNIA ADVISORY ID: SA29146 VERIFY ADVISORY: http://secunia.com/advisories/29146/ CRITICAL: Highly critical IMPACT: System access WHERE: >From remote SOFTWARE: 4XEM VatDecoder 1.x http://secunia.com/product/17836/ DESCRIPTION: rgod has discovered a vulnerability in 4XEM VatDecoder, which can be exploited by malicious people to compromise a user's system. The vulnerability is caused due to a boundary error in the VATDecoder.VatCtrl.1 ActiveX control (VATDecoder.dll) when handling strings assigned to the "Url" property. This can be exploited to cause a stack-based buffer overflow by assigning an overly long string to the affected property. Successful exploitation allows execution of arbitrary code. The vulnerability is confirmed in VATDecoder.dll version 1.0.0.27 and reported in version 1.0.0.51. Other versions may also be affected. SOLUTION: Set the kill-bit for the affected ActiveX control. PROVIDED AND/OR DISCOVERED BY: rgod ORIGINAL ADVISORY: http://www.milw0rm.com/exploits/5193 ---------------------------------------------------------------------- About: This Advisory was delivered by Secunia as a free service to help everybody keeping their systems up to date against the latest vulnerabilities. Subscribe: http://secunia.com/secunia_security_advisories/ Definitions: (Criticality, Where etc.) http://secunia.com/about_secunia_advisories/ Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor. ---------------------------------------------------------------------- Unsubscribe: Secunia Security Advisories http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org ----------------------------------------------------------------------

AFFECTED PRODUCTS

CVSS

PROBLEMTYPE DATA

THREAT TYPE

remote

TYPE

buffer overflow

CONFIGURATIONS

EXPLOIT AVAILABILITY

PATCH

EXTERNAL IDS

REFERENCES

CREDITS

rgod discovered this vulnerability.

SOURCES

LAST UPDATE DATE

2025-04-10T20:59:22.444000+00:00

SOURCES UPDATE DATE

SOURCES RELEASE DATE