TITLE: Apache mod_auth_shadow Module "require group" Incorrect Authentication SECUNIA ADVISORY ID: SA17060 VERIFY ADVISORY: http://secunia.com/advisories/17060/ CRITICAL: Less critical IMPACT: Security Bypass WHERE: >From remote SOFTWARE: mod_auth_shadow (module for Apache) http://secunia.com/product/2811/ DESCRIPTION: David Herselman has reported a security issue in the mod_auth_shadow module for Apache, which potentially can be exploited by malicious people to bypass certain security restrictions. The problem is that the mod_auth_shadow authentication scheme is automatically used when using the "require group" directive in a ".htaccess" file, which may be different than the intended HTTP authentication scheme. SOLUTION: Update to version 1.5 or 2.1. http://sourceforge.net/project/showfiles.php?group_id=11283 PROVIDED AND/OR DISCOVERED BY: David Herselman ORIGINAL ADVISORY: Debian: http://www.debian.org/security/2005/dsa-844 ---------------------------------------------------------------------- About: This Advisory was delivered by Secunia as a free service to help everybody keeping their systems up to date against the latest vulnerabilities. Subscribe: http://secunia.com/secunia_security_advisories/ Definitions: (Criticality, Where etc.) http://secunia.com/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 ----------------------------------------------------------------------