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Insecure Library Loading
Not critical

CVS File Existence Information Disclosure Weakness

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Release Date:  2004-08-17    Last Update:  2004-08-18    Views:  16,491

Secunia Advisory SA12309

Where:

From remote

Impact:

Exposure of system information

Solution Status:

Vendor Patch

CVE Reference(s):

Description


A weakness has been reported in Concurrent Versions System (CVS), which potentially can be exploited by malicious users to gain knowledge of certain system information.

The problem is caused due to an undocumented switch to the "history" command implemented in "src/history.c". Using the "-X" switch and supplying an arbitrary filename, CVS will try to access the specified file and returns various information depending on whether the file exists and can be accessed.

This behaviour can be exploited to determine the existence and permissions of arbitrary files and directories on a vulnerable system.

The weakness has been reported in version 1.11. Other versions may also be affected.


Solution:
This issue has been fixed in versions 1.11.17 and 1.12.9.

Provided and/or discovered by:
Originally discovered by:
Sebastian Krahmer

Re-discovered by an anonymous person and reported through iDEFENSE.

Original Advisory:
US-CERT VU#579225:
http://www.kb.cert.org/vuls/id/579225

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: CVS File Existence Information Disclosure Weakness

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