Sage extension for Mozilla Firefox RSS feeds cross-site scripting
| sage-rss-xss (28855) |  Medium Risk |
Description:
Sage extension for Mozilla Firefox is vulnerable to cross-site scripting, caused by improper validation of user-supplied input in the processing of content tags in RSS feeds. A remote attacker could exploit this vulnerability to inject malicious script into a Web page which would be executed in a victim's Web browser within the security context of the hosting Web site, once the RSS feed is viewed. An attacker could use this vulnerability to steal the victim's cookie-based authentication credentials.
*CVSS:
| Base Score: | 4.2 |
| Access Vector: | Remote |
| Access Complexity: | High |
| Authentication: | Not Required |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | None |
| Temporal Score: | 3.7 |
| Exploitability: | High |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Access
Remedy:
Upgrade to the latest version of Sage (1.3.7 or later), available from the Sage Web site. See References.
References:
- BugTraq Mailing List, Fri Sep 08 2006 - 15:02:03 CDT : Cross Context Scripting with Sage.
- Mozdev Bugzilla Bug 15101: sage fails many of the tests in the feed reader XSS test suite.
- Sage Web site: Sage: a feed reader for Firefox.
- BID-19928: Sage Input Validation Vulnerability
- CVE-2006-4712: Multiple cross-site scripting (XSS) vulnerabilities in Sage 1.3.6 allow remote attackers to inject arbitrary web script or HTML via JavaScript in a content:encoded element within an item element in an RSS feed, as demonstrated by four example content:encoded elements that use XMLHttpRequest to read arbitrary local files, aka Cross Context Scripting.
- SA21839: Firefox Sage Extension Feed Script Insertion Vulnerabilities
- VUPEN/ADV-2006-3553: Sage Extension for Firefox RSS File Client-Side Cross Site Scripting Vulnerability
Platforms Affected:
- Sage-mozdev Sage 1.3.6
Reported:
Sep 08, 2006
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For corrections or additions please email xforce@iss.net
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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.