SMTP: Multiple Browser URI Handlers Command Injection

This signature detects an attempt to leverage a known vulnerability in the way that some Microsoft Windows based software handles certain malformed URLs. An attacker can use a specially crafted URL to execute arbitrary commands on the affected system. Note that only Windows XP and Windows 2003 systems with Internet Explorer 7 are affected.

Extended Description

The URL handling in Shell32.dll in the Windows shell in Microsoft Windows XP and Server 2003, with Internet Explorer 7 installed, allows remote attackers to execute arbitrary programs via invalid "%" sequences in a mailto: or other URI handler, as demonstrated using mIRC, Outlook, Firefox, Adobe Reader, Skype, and other applications. NOTE: this issue might be related to other issues involving URL handlers in Windows systems, such as CVE-2007-3845. There also might be separate but closely related issues in the applications that are invoked by the handlers.

References

BugTraq: 25053

CVE: CVE-2007-3896

URL: http://xs-sniper.com/blog/remote-command-exec-firefox-2005/ http://blog.mozilla.com/security/2007/07/23/related-security-issue-in-url-protocol-handling-on-windows/

Short Name

SMTP:SMTP-MUL-BRSR-URI-INJ

Severity

Minor

Recommended

False

Recommended Action

None

SMTP: Multiple Browser URI Handlers Command Injection

Extended Description

References

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