Sage extension for Firefox description cross-site scripting
|sage-description-xss (54396)||Medium Risk|
The Sage extension for Firefox is vulnerable to cross-site scripting, caused by improper validation of user-supplied input. A remote attacker could exploit this vulnerability using the description tag within RSS feeds to inject malicious script into a Web page which would be executed in a victim's Web browser in the "chrome:" context, if the attacker could persuade the victim to load a specially-crafted RSS feed. An attacker could use this vulnerability to steal the victim's cookie-based authentication credentials.
Apply the appropriate patch for your system. See References.
- Help Net Security Web Site: Zero-day vulnerabilities in Firefox extensions discovered.
- Sage Web site: Sage: a feed reader for Firefox.
- BID-37120: Mozilla Firefox Sage Extension RSS Feeds Cross Domain Scripting Vulnerability
- CVE-2009-4102: Sage 1.4.3 and earlier extension for Firefox performs certain operations with chrome privileges, which allows remote attackers to execute arbitrary commands and perform cross-domain scripting attacks via the description tag of an RSS feed.
- DSA-1951: firefox-sage -- insufficient input sanitising
- OSVDB ID: 60529: Sage Extension for Firefox RSS Feed chrome: Cross-context Arbitrary Code Execution
- OSVDB ID: 75341: Sage Extension for Mozilla Firefox Crafted Feed XSS
- SA37466: Firefox Sage Extension Cross-Context Scripting Vulnerability
- Debian Debian Linux 4.0
- Debian Debian Linux 5.0
- Mozilla Sage Extension for Firefox 1.4.3
Nov 24, 2009
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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.