---------------------------------------------------------------------- Do you need accurate and reliable IDS / IPS / AV detection rules? Get in-depth vulnerability details: http://secunia.com/binary_analysis/sample_analysis/ ---------------------------------------------------------------------- TITLE: Serv-U File Renaming Directory Traversal and STOU Denial of Service SECUNIA ADVISORY ID: SA32150 VERIFY ADVISORY: http://secunia.com/advisories/32150/ CRITICAL: Moderately critical IMPACT: DoS, System access WHERE: >From remote SOFTWARE: Serv-U File Server 7.x http://secunia.com/advisories/product/19573/ DESCRIPTION: dmnt has discovered two vulnerabilities in Serv-U, which can be exploited by malicious users to cause a DoS (Denial of Service) or compromise a vulnerable system. 1) An error in the handling of the "STOU" FTP command can be exploited to exhaust available CPU resources via a specially crafted argument (e.g. "CON:1"). 2) An input validation error in the FTP service when renaming files can be exploited to overwrite or create arbitrary files with user-supplied content via directory traversal attacks. The vulnerabilities are confirmed in version 7.3.0.0. Other versions may also be affected. SOLUTION: Restrict access to the FTP service. PROVIDED AND/OR DISCOVERED BY: dmnt ORIGINAL ADVISORY: http://milw0rm.com/exploits/6660 http://milw0rm.com/exploits/6661 ---------------------------------------------------------------------- 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/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 ----------------------------------------------------------------------