Technical Description

Multiple vulnerabilities have been identified in MoinMoin, which could be exploited by attackers to bypass security restrictions, disclose sensitive information or execute arbitrary scripting code.

The first issue is caused by an input validation error in the "action/login.py" script when processing usernames, which could be exploited by attackers to cause arbitrary scripting code to be executed by the user's browser in the security context of an affected site.

The second vulnerability is caused by input validation errors in the "action/AttachFile.py", "formatter/text_gedit.py" and "PageEditor.py" files when processing certain data, which could be exploited by attackers to cause arbitrary scripting code to be executed by the user's browser in the security context of an affected site.

The third issue is caused by an input validation error in the "user.py" file when processing user IDs supplied via cookies, which could be exploited to conduct directory traversal attacks and overwrite arbitrary files on a vulnerable system.

The fourth vulnerability is caused by an error in the macro code (wikimacro.py) that does not properly validate access control lists, which allows remote attackers to read protected pages.

Affected Products

MoinMoin version 1.5.8 and prior
MoinMoin version 1.6.0 and prior

Solution

Upgrade to MoinMoin version 1.6.1 :
http://www.moinmo.in/MoinMoinDownload

References

http://www.vupen.com/english/advisories/2008/0569
http://moinmo.in/SecurityFixes

Credits

Vulnerabilities reported by the vendor.

ChangeLog

2008-02-15 : Initial release
2008-03-10 : Updated Description

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