TITLE: Microsoft Exchange HTML Redirection Script Insertion Vulnerability SECUNIA ADVISORY ID: SA12261 VERIFY ADVISORY: http://secunia.com/advisories/12261/ CRITICAL: Moderately critical IMPACT: Cross Site Scripting WHERE: >From remote SOFTWARE: Microsoft Exchange 5.5 http://secunia.com/product/148/ DESCRIPTION: Microsoft has released an update for Exchange Server 5.5 SP4. This fixes a vulnerability, allowing malicious people to conduct script insertion attacks. The vulnerability is caused due to an input validation error in a HTML redirection query. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected website when a malicious entry is viewed. This vulnerability affects Microsoft Exchange 5.5 with Service Pack 4. SOLUTION: Apply patch. Microsoft Exchange 5.5 with Service Pack 4: http://www.microsoft.com/downloads/details.aspx?FamilyId=66E4E033-5A4C-4EEC-84F1-31F0CA878092&displaylang=en PROVIDED AND/OR DISCOVERED BY: Amit Klein of Sanctum Inc. ORIGINAL ADVISORY: Microsoft Security Bulletin MS04-026 (KB842436): http://www.microsoft.com/technet/security/bulletin/ms04-026.mspx ---------------------------------------------------------------------- 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@packetstormsecurity.org ----------------------------------------------------------------------