CVE-2009-2669 Information

Description

A certain debugging component in IBM AIX 5.3 and 6.1 does not properly handle the (1) _LIB_INIT_DBG and (2) _LIB_INIT_DBG_FILE environment variables which allows local users to gain privileges by leveraging a setuid-root program to create an arbitrary root-owned file with world-writable permissions related to libC.a (aka the XL C++ runtime library) in AIX 5.3 and libc.a in AIX 6.1.

Reference

http://aix.software.ibm.com/aix/efixes/security/libC_advisory.asc http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=815 http://secunia.com/advisories/36156 http://www.ibm.com/support/docview.wss?uid=isg1IZ54090 http://www.ibm.com/support/docview.wss?uid=isg1IZ54091 http://www.ibm.com/support/docview.wss?uid=isg1IZ54593 http://www.ibm.com/support/docview.wss?uid=isg1IZ56203 http://www.ibm.com/support/docview.wss?uid=isg1IZ56204 http://www.ibm.com/support/docview.wss?uid=isg1IZ56205 http://www.ibm.com/support/docview.wss?uid=isg1IZ56206 http://www.securityfocus.com/bid/35934 http://www.vupen.com/english/advisories/2009/2151