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R "javareconf" Insecure Temporary Files
Secunia Advisory: SA31647
Release Date: 2008-08-28
Last Update: 2008-09-10
Popularity: 2,309 views

Critical:
Less critical
Impact: Privilege escalation
Where: Local system
Solution Status: Vendor Workaround

Software:R 2.x

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CVE reference:CVE-2008-3931


Description:
A security issue has been reported in R, which can be exploited by malicious, local users to perform certain actions with escalated privileges.

The security issue is caused due to the "javareconf" script handling temporary files in an insecure manner. This can be exploited via symlink and race condition attacks to overwrite arbitrary files with the privileges of the user running the script.

The security issue is reported in version 2.7.2. Other versions may also be affected.

Solution:
Fixed in the SVN repository.

Provided and/or discovered by:
Reported by Dmitry E. Oboukhov in a Debian bug report.

Changelog:
2008-09-10: Updated "Solution" section. Added CVE reference and link to "Original Advisory" section.

Original Advisory:
R Project:
http://bugs.r-project.org/cgi-bin/R/incoming?id=12636

Debian:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=496363


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