Varnish 2.0.6 writes data to a log file without sanitizing non-printable characters, which might allow remote attackers to modify a window's title, or possibly execute arbitrary commands or overwrite files, via an HTTP request containing an escape sequence for a terminal emulator. NOTE: the vendor disputes the significance of this report, stating that "This is not a security problem in Varnish or any other piece of software which writes a logfile. The real problem is the mistaken belief that you can cat(1) a random logfile to your terminal safely.
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
The product receives input that is expected to specify a quantity (such as size or length), but it does not validate or incorrectly validates that the quantity has the required properties.
| Link | Tags |
|---|---|
| http://www.ush.it/team/ush/hack_httpd_escape/adv.txt | exploit |
| http://www.securityfocus.com/bid/37713 | vdb entry exploit |
| http://www.securityfocus.com/archive/1/508830/100/0/threaded | mailing list |