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COMMAND Axis Webcam remote DoS via web server SYSTEMS AFFECTED Axis Webserver for 2400, 2100 PROBLEM Thanks to Martin Eiszner [mei@websec.org] of WebSec.org [http://www.websec.org] advisory : 1) INFORMATION DISCLOSURE http-requests to: ---*--- http://server/support/messages ---*--- responds with /var/log/messages. it is not password protected and might disclose sensitive information. 2) DOS / OVERWRITING SYSTEM-FILES requesting: ---*--- http://server/axis-cgi/buffer/command.cgi? buffername=X& prealarm=1& postalarm=1& do=start& uri=/jpg/quad.jpg& format=[bad input] ---*--- allows an attacker to overwrite important files on the system (all fifos for example) leading to an effective DOS-attack. 3) ARBITRARY FILE CREATION a request like: ---*--- /axis-cgi/buffer/command.cgi?whatever params buffername=[relative path to directory] format=[relative path to arbitrary file name] ---*--- will create [relative path to arbitrary file name] or [relative path to a. directory] if somebody is able to change content of error messages he might be able to create and execute arbitrary script-files(php fE.). SOLUTION None yet