---------------------------------------------------------------------- Use WSUS to deploy 3rd party patches Public BETA http://secunia.com/vulnerability_scanning/corporate/wsus_3rd_third_party_patching/ ---------------------------------------------------------------------- TITLE: Microsoft Windows HTML Help File Processing Vulnerability SECUNIA ADVISORY ID: SA38916 VERIFY ADVISORY: http://secunia.com/advisories/38916/ DESCRIPTION: edu has discovered a vulnerability in Microsoft Windows, which can be exploited by malicious people to potentially compromise a user's system. The hhctrl.ocx "HtmlHelpA()" function opens CHM files placed in the current directory if a relative path is received as an argument. This can be exploited to execute arbitrary JavaScript code in a local security context by e.g. tricking a user into opening a ".txt" file placed in the same directory with a specially crafted notepad.chm file, opened by notepad.exe when the F1 key is pressed inside the document. Successful exploitation allows execution of arbitrary commands, but additionally requires that the user is tricked into clicking a topic in the malicious help file. The vulnerability is confirmed on a fully patched Windows XP SP3, and also reported in Windows 2000 SP4. SOLUTION: Avoid pressing F1 inside documents or images placed in untrusted directories. PROVIDED AND/OR DISCOVERED BY: edu, Secumania Security Group ORIGINAL ADVISORY: http://secumania.net/index.php?option=com_content&task=view&id=37 ---------------------------------------------------------------------- About: This Advisory was delivered by Secunia as a free service to help private users keeping their systems up to date against the latest vulnerabilities. Subscribe: http://secunia.com/advisories/secunia_security_advisories/ Definitions: (Criticality, Where etc.) http://secunia.com/advisories/about_secunia_advisories/ Please Note: Secunia recommends that you verify all advisories you receive by clicking the link. Secunia NEVER sends attached files with advisories. Secunia does not advise people to install third party patches, only use those supplied by the vendor. ---------------------------------------------------------------------- Unsubscribe: Secunia Security Advisories http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org ----------------------------------------------------------------------