---------------------------------------------------------------------- The new Secunia CSI 6.0 is now available in beta! Seamless integration with your existing security solutions Sign-up to become a Beta tester: http://secunia.com/csi6beta ---------------------------------------------------------------------- TITLE: Tunnelblick Multiple Vulnerabilities SECUNIA ADVISORY ID: SA50162 VERIFY ADVISORY: Secunia.com http://secunia.com/advisories/50162/ Customer Area (Credentials Required) https://ca.secunia.com/?page=viewadvisory&vuln_id=50162 RELEASE DATE: 2012-08-15 DISCUSS ADVISORY: http://secunia.com/advisories/50162/#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/50162/ 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=50162 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: Jason A. Donenfeld has reported multiple vulnerabilities in Tunnelblick, which can be exploited by malicious, local users to cause a DoS (Denial of Service) and gain escalated privileges. 1) A race condition when checking file permissions can be exploited to execute certain scripts with root privileges. 2) The application does not properly verify file permissions before executing the script with root privileges. 3) The application does not properly validate path names of modules before loading them and can be exploited to execute arbitrary kernel modules. 4) The openvpnstart application does not properly validate path names and can be exploited to execute arbitrary scripts via symlink attacks. 5) The application loads configuration files with a setuid-root set binary, which can be exploited to load arbitrary configurations and gain escalated privileges. 6) A race condition error when checking a process name and killing the PID can be exploited to kill arbitrary processes. The vulnerabilities are reported in version 3.2.8 (build 2891.3099). Other versions may also be affected. SOLUTION: No official solution is currently available. PROVIDED AND/OR DISCOVERED BY: Jason A. Donenfeld ORIGINAL ADVISORY: http://archives.neohapsis.com/archives/fulldisclosure/2012-08/index.html http://www.openwall.com/lists/oss-security/2012/08/13/5 OTHER REFERENCES: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ DEEP LINKS: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ EXTENDED DESCRIPTION: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ EXTENDED SOLUTION: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ EXPLOIT: Further details available in Customer Area: http://secunia.com/vulnerability_intelligence/ ---------------------------------------------------------------------- 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 ----------------------------------------------------------------------