====================================================================== Secunia Research 29/10/2010 - SonicWALL SSL-VPN End-Point Interrogator/Installer ActiveX Control - - "Install3rdPartyComponent()" Method Buffer Overflow - ====================================================================== Table of Contents Affected Software....................................................1 Severity.............................................................2 Vendor's Description of Software.....................................3 Description of Vulnerability.........................................4 Solution.............................................................5 Time Table...........................................................6 Credits..............................................................7 References...........................................................8 About Secunia........................................................9 Verification........................................................10 ====================================================================== 1) Affected Software * SonicWALL SSL-VPN End-Point Interrogator/Installer ActiveX Control version 10.5.1.117 NOTE: Other versions may also be affected. ====================================================================== 2) Severity Rating: Highly critical Impact: System access Where: Remote ====================================================================== 3) Vendor's Description of Software "The End-Point Interrogator/Installer ActiveX control provides software installation and interrogation functionality and is used by the SonicWALL SSL-VPN E-Class remote access devices." Product Link: http://www.sonicwall.com/us/products/506.html ====================================================================== 4) Description of Vulnerability Secunia Research has discovered a vulnerability in SonicWALL SSL-VPN End-Point Interrogator/Installer ActiveX Control, which can be exploited by malicious people to compromise a user's system. The vulnerability is caused by a boundary error in the "Install3rdPartyComponent()" method in the "Aventail.EPInstaller" ActiveX control when creating an absolute path name based on values in the "CabURL" and "Location" arguments. This can be exploited to cause a stack-based buffer overflow via overly long values. Successful exploitation allows execution of arbitrary code. ====================================================================== 5) Solution Update to version 10.5.2 and apply hotfix 3 for version 10.0.5. ====================================================================== 6) Time Table 28/09/2010 - Vendor notified. 28/09/2010 - Vendor response. 10/10/2010 - Vendor confirms the vulnerability. 26/10/2010 - Vendor releases fixed version. 29/10/2010 - Public disclosure. ====================================================================== 7) Credits Discovered by Dmitriy Pletnev, Secunia Research. ====================================================================== 8) References The Common Vulnerabilities and Exposures (CVE) project has assigned CVE-2010-2583 for the vulnerability. ====================================================================== 9) About Secunia Secunia offers vulnerability management solutions to corporate customers with verified and reliable vulnerability intelligence relevant to their specific system configuration: http://secunia.com/advisories/business_solutions/ Secunia also provides a publicly accessible and comprehensive advisory database as a service to the security community and private individuals, who are interested in or concerned about IT-security. http://secunia.com/advisories/ Secunia believes that it is important to support the community and to do active vulnerability research in order to aid improving the security and reliability of software in general: http://secunia.com/secunia_research/ Secunia regularly hires new skilled team members. Check the URL below to see currently vacant positions: http://secunia.com/corporate/jobs/ Secunia offers a FREE mailing list called Secunia Security Advisories: http://secunia.com/advisories/mailing_lists/ ====================================================================== 10) Verification Please verify this advisory by visiting the Secunia website: http://secunia.com/secunia_research/2010-117/ Complete list of vulnerability reports published by Secunia Research: http://secunia.com/secunia_research/ ======================================================================