CVE-2011-4361
First published: Sun Jan 08 2012(Updated: )
MediaWiki before 1.17.1 does not check for read permission before handling action=ajax requests, which allows remote attackers to obtain sensitive information by (1) leveraging the SpecialUpload::ajaxGetExistsWarning function, or by (2) leveraging an extension, as demonstrated by the CategoryTree, ExtTab, and InlineEditor extensions.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| MediaWiki | <1.17.1 | |
| Debian Linux | =5.0 | |
| Debian Linux | =6.0 |
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Reference Links
- http://openwall.com/lists/oss-security/2011/11/29/6
- https://bugzilla.wikimedia.org/show_bug.cgi?id=32616
- http://lists.wikimedia.org/pipermail/mediawiki-announce/2011-November/000104.html
- https://bugzilla.redhat.com/show_bug.cgi?id=758171
- http://openwall.com/lists/oss-security/2011/11/29/12
- http://www.debian.org/security/2011/dsa-2366
Frequently Asked Questions
What is the severity of CVE-2011-4361?
CVE-2011-4361 has been classified as a medium severity vulnerability due to its potential to expose sensitive information.
How do I fix CVE-2011-4361?
To fix CVE-2011-4361, update MediaWiki to version 1.17.1 or later where this vulnerability has been addressed.
What types of attacks can be conducted using CVE-2011-4361?
CVE-2011-4361 allows remote attackers to obtain sensitive information by exploiting unprotected AJAX requests.
Which versions of MediaWiki are affected by CVE-2011-4361?
MediaWiki versions before 1.17.1 are vulnerable to CVE-2011-4361.
Is any configuration required to mitigate CVE-2011-4361?
No specific configuration is required to mitigate CVE-2011-4361 other than upgrading to a secure version of MediaWiki.
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- vendor/mediawiki
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- version/debian linux/5.0
- version/debian linux/6.0