Ruby Local File Creation Vulnerability

Summary

Ruby is prone to a security vulnerability that may allow attackers to create unintended files.

Credit:

The original article can be found at: http://www.ruby-lang.org/en/news/2012/10/12/poisoned-NUL-byte-vulnerability/
The information has been provided by Peter Bex .


Details

Vulnerable Systems:
 * Yukihiro Matsumoto Ruby 1.9.3 dev and peior

The rb_get_path_check function in file.c in Ruby 1.9.3 before patchlevel 286 and Ruby 2.0.0 before r37163 allows context-dependent attackers to create files in unexpected locations or with unexpected names via a NUL byte in a file path.

CVE Information:
CVE-2012-4522

Disclosure Timeline:
Published: October 18 2012

Categories: News