====================================================================== Secunia Research 09/11/2007 - Miranda "ext_yahoo_contact_added()" Format String Vulnerability - ====================================================================== 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 * Miranda IM version 0.7.1. ====================================================================== 2) Severity Rating: Less critical Impact: System access Where: Remote ====================================================================== 3) Vendor's Description of Software "Miranda IM is an open-source multi protocol instant messenger client for Microsoft Windows. It's smaller, faster, easier!". Product Link: http://www.miranda-im.org/ ====================================================================== 4) Description of Vulnerabilities Secunia Research has discovered a vulnerability in Miranda IM, which can be exploited by malicious people to compromise a vulnerable system. The vulnerability is caused due to a format string error within "ext_yahoo_contact_added()" in yahoo.c and can be exploited via a "Y7 Buddy Authorization" packet containing format string specifiers. Successful exploitation allows execution of arbitrary code, but requires that the user e.g. is tricked into connecting to a malicious server. ====================================================================== 5) Solution Fixed in the SVN repository. ====================================================================== 6) Time Table 26/10/2007 - Vendor notified. 31/10/2007 - vendor replied. 09/11/2007 - Public disclosure. ====================================================================== 7) Credits Discovered by Secunia Research. ====================================================================== 8) References The Common Vulnerabilities and Exposures (CVE) project has assigned CVE-2007-5396 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: https://www.flexera.com/ 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. 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. Secunia regularly hires new skilled team members. Check the URL below to see currently vacant positions: https://www.flexera.com/company/careers Secunia offers a FREE mailing list called Secunia Security Advisories: https://www.flexera.com/secunia_security_advisories/ ====================================================================== 10) Verification Please verify this advisory by visiting the Secunia website: https://www.flexera.com/about-us/secunia-research/advisories/sr-2007-89.html Complete list of vulnerability reports published by Secunia Research: https://www.flexera.com/about-us/secunia-research/advisories/ ======================================================================