Blender BVF File Import Python Code Execution Vulnerability

BID:17663

Info

Blender BVF File Import Python Code Execution Vulnerability

Bugtraq ID: 17663
Class: Boundary Condition Error
CVE: CVE-2005-3302
Remote: Yes
Local: No
Published: Apr 24 2006 12:00AM
Updated: Dec 14 2006 04:38PM
Credit: Joxean Koret <[email protected]> discovered this issue.
Vulnerable: Debian Linux 3.1 sparc
Debian Linux 3.1 s/390
Debian Linux 3.1 ppc
Debian Linux 3.1 mipsel
Debian Linux 3.1 mips
Debian Linux 3.1 m68k
Debian Linux 3.1 ia-64
Debian Linux 3.1 ia-32
Debian Linux 3.1 hppa
Debian Linux 3.1 arm
Debian Linux 3.1 amd64
Debian Linux 3.1 alpha
Debian Linux 3.1
Blender Blender 2.36
Not Vulnerable:

Discussion

Blender BVF File Import Python Code Execution Vulnerability

Blender is susceptible to a Python code-execution vulnerability. This issue is due to the application's failure to properly sanitize user-supplied input before using it in a Python 'eval' statement.

This issue allows attackers to execute arbitrary Python code in the context of the user running the affected application.

Exploit / POC

Blender BVF File Import Python Code Execution Vulnerability

BVH files are text-based, allowing attackers to use standard utilities to exploit this vulnerability.

The following example BVH files are sufficient to demonstrate this issue:

http://bugs.debian.org/cgi-bin/bugreport.cgi/exploit.bvh?bug=330895;msg=5;att=1
http://bugs.debian.org/cgi-bin/bugreport.cgi/poc1.bvh?bug=330895;msg=5;att=3
http://bugs.debian.org/cgi-bin/bugreport.cgi/poc2.bvh?bug=330895;msg=5;att=4

Solution / Fix

Blender BVF File Import Python Code Execution Vulnerability

Solution:
The vendor has committed fixes to their CVS repository to address this issue.

Please see the referenced advisories for further information on obtaining and applying fixes.


Blender Blender 2.36

References

Blender BVF File Import Python Code Execution Vulnerability

References:
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