---------------------------------------------------------------------- Secunia receives 'Frost & Sullivan's Global 2010 Customer Value Enhancement Award Secunia outshines its competitors and receives the Frost & Sullivan’s Global 2010 Customer Value Enhancement Award. Based on its recent analysis of the vulnerability research market, Frost & Sullivan concluded: "Secunia provides tremendous value for their customers, end-users, and to other security vendors." Read more: http://secunia.com/blog/117/ ---------------------------------------------------------------------- TITLE: FreeBSD "setusercontext()" Security Bypass Vulnerability SECUNIA ADVISORY ID: SA40923 VERIFY ADVISORY: Secunia.com http://secunia.com/advisories/40923/ Customer Area (Credentials Required) https://ca.secunia.com/?page=viewadvisory&vuln_id=40923 RELEASE DATE: 2010-08-18 DISCUSS ADVISORY: http://secunia.com/advisories/40923/#comments AVAILABLE ON SITE AND IN CUSTOMER AREA: * Last Update * Popularity * Comments * Criticality Level * Impact * Where * Solution Status * Operating System / Software * CVE Reference(s) http://secunia.com/advisories/40923/ ONLY AVAILABLE IN CUSTOMER AREA: * Authentication Level * Report Reliability * Secunia PoC * Secunia Analysis * Systems Affected * Approve Distribution * Remediation Status * Secunia CVSS Score * CVSS https://ca.secunia.com/?page=viewadvisory&vuln_id=40923 ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI: * AUTOMATED SCANNING http://secunia.com/vulnerability_scanning/personal/ http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/ DESCRIPTION: A vulnerability has been reported in FreeBSD, which can be exploited by malicious, local users to bypass certain security restrictions. The vulnerability is caused due to the "setusercontext()" function in lib/libutil/login_class.c applying certain user settings while it's running with the privileges of another user. This can be exploited to e.g. change certain restricted resource limits by creating a specially crafted "~/.login_conf" file and logging in via e.g. OpenSSH. SOLUTION: Fixed in the CVS repository. Further details available in Customer Area: http://secunia.com/products/corporate/EVM/ PROVIDED AND/OR DISCOVERED BY: Andrey Zonov ORIGINAL ADVISORY: http://www.freebsd.org/cgi/query-pr.cgi?pr=141840 OTHER REFERENCES: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/ DEEP LINKS: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/ EXTENDED DESCRIPTION: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/ EXTENDED SOLUTION: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/ EXPLOIT: Further details available in Customer Area: http://secunia.com/products/corporate/EVM/ ---------------------------------------------------------------------- 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 ----------------------------------------------------------------------