Snare for Linux Cross-Site Scripting via Log Injection I. BACKGROUND ---------------------- Snare for Linux provides a 'C2' or 'CAPP' style audit subsystem for the Linux operating system. It can be used as a standalone auditing tool for Linux, or can send data to the Snare Server for analysis and storage. II. DESCRIPTION ---------------------- A cross-site scripting vulnerability has been discovered in the web interface for Snare for Linux. As part of Snare's intended functionality, one feature it provides is the logging of shell commands issued by a given user which are then available for viewing through the web interface. Due to the fact that this data was not validated before being sent to the browser in versions prior to 1.7.0, it is possible to inject JavaScript into the web console. III. AFFECTED PRODUCTS ---------------------- All versions of Snare for Linux prior to 1.7.0 are vulnerable. IV. ---------------------- Users should upgrade to version 1.7.0 of Snare for Linux. V. Credit ---------------------- This vulnerability was discovered by Andrew Brooks. VI. References ---------------------- CVE-2011-5249 http://rpmfind.net/linux/RPM/sourceforge/s/sn/snare/Snare%20for%20Linux/1.7.0/SnareLinux-1.7.0-0.i386.html VII. Timeline ---------------------- 7/11/11 - Vendor notification 8/09/11 - Fixed and closed