11201 : Perl on Trustix Secure Linux Multiple Script Insecure Temporary File Creation
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Info

Last Modified
10 months ago

Percent Complete
100%

Disclosure
Sep 30, 2004

Discovery
Unknown

Dates

Exploit
Unknown

Solution
Unknown

Description

 Multiple scripts within Perl contain a flaw that may allow a malicious user to overwrite arbitrary files with the permissions of the user running the script. The is due to the scripts' creation of world-writeable symbolic links, which an attacker can make point to any file in the filesystem. When the script uses the symlink to write data later, the newly specified file is overwritten, causing a loss of integrity.

Classification

 Location: Local Access Required
Attack Type: Race Condition
Impact: Loss of Integrity
Exploit: Exploit Available
Disclosure: OSVDB Verified

Solution

 Upgrade to version 5.8.5 or higher, as it has been reported to fix the majority of these vulnerabilities. An upgrade is required as there are no known workarounds.

Products
Larry Wall
Watch-list
Perl
Watch-list
 5.8.3.x
5.8.4.x
5.8.5

References

Tools & Filters

Nessus

 15921 16073 16360 20258 20310 20367 20564

Credit
  • Trustix Secure Linux - Trustix Secure Linux

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