CVE-2013-0175 Information

Description

multi_xml gem 0.5.2 for Ruby as used in Grape before 0.2.6 and possibly other products does not properly restrict casts of string values which allows remote attackers to conduct object-injection attacks and execute arbitrary code or cause a denial of service (memory and CPU consumption) involving nested XML entity references by leveraging support for (1) YAML type conversion or (2) Symbol type conversion a similar vulnerability to CVE-2013-0156.

Reference

http://www.openwall.com/lists/oss-security/2013/01/11/9 https://gist.github.com/nate/d7f6d9f4925f413621aa https://github.com/sferik/multi_xml/pull/34 https://groups.google.com/forum/?fromgroups=!topic/ruby-grape/fthDkMgIOa0 https://news.ycombinator.com/item?id=5040457