Bug 891020 (CVE-2012-6453)
| Summary: | CVE-2012-6453 MediaWiki RSS Reader: code execution via HTML in feed titles and bodies | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | Kurt Seifried <kseifried> |
| Component: | vulnerability | Assignee: | Red Hat Product Security <security-response-team> |
| Status: | CLOSED NOTABUG | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | extras-orphan, ian, puiterwijk |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2013-01-18 11:34:28 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 891021, 891022, 891023 | ||
| Bug Blocks: | |||
Created mediawiki-rss tracking bugs for this issue Affects: fedora-16 [bug 891021] Created mediawiki-rss tracking bugs for this issue Affects: epel-5 [bug 891022] Created mediawiki119-RSS tracking bugs for this issue Affects: epel-6 [bug 891023] This does not apply: this is a security bug against the RSS_Reader extension, but this is the RSS extension. |
Thorsten Glaser (tg) reports: Package: mediawiki-extensions-base Version: 2.9 Severity: grave Justification: user security hole Thanks to Joey Hess, who put <title></yurt></title> into his feed, and our FusionForge “pink popup” which displays invalid XHTML immediately, a user security hole could be identified today during MediaWiki validation at tarent solutions GmbH in mediawiki-extensions-base (RSS_Reader) and gforge-base (Codendi RSS widget). In mediawiki-extensions-base, this is an actual user security hole: JavaScript placed, properly escaped, into an RSS feed item’s title is executed on the page. (In FusionForge, <script> tags are stripped, but the invalid </yurt> is still emitted. I will not file a security bug against FusionForge because I do not believe it a user security hole there, but still commit a fix into FF’s git repo.) External links: http://www.mediawiki.org/wiki/Extension:RSS_Reader#0.2.6 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=696179