---------------------------------------------------------------------- Do you have VARM strategy implemented? (Vulnerability Assessment Remediation Management) If not, then implement it through the most reliable vulnerability intelligence source on the market. Implement it through Secunia. For more information visit: http://secunia.com/advisories/business_solutions/ Alternatively request a call from a Secunia representative today to discuss how we can help you with our capabilities contact us at: sales@secunia.com ---------------------------------------------------------------------- TITLE: FreeBSD ftpd chroot Security Bypass Security Issue SECUNIA ADVISORY ID: SA36353 VERIFY ADVISORY: http://secunia.com/advisories/36353/ DESCRIPTION: Kingcope has discovered a security issue in FreeBSD's ftpd, which can be exploited by malicious users to bypass certain security restrictions. The security issue is caused due to the ftpd not correctly checking for certain error conditions when trying to read a user's chroot information from /etc/ftpchroot. A user can exploit this to bypass the chroot protection by e.g. uploading ".login_conf" and ".login_conf.db" files with the "openfiles" resource limit set to 5 into a home directory. The security issue is confirmed in FreeBSD 7.2. Other versions may also be affected. SOLUTION: Allow access to trusted users only. Do not rely on the chroot protection. PROVIDED AND/OR DISCOVERED BY: Kingcope ORIGINAL ADVISORY: http://packetstormsecurity.org/0908-exploits/bsd-setusercontext.txt ---------------------------------------------------------------------- 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 ----------------------------------------------------------------------