What’s Vulnerable › Vulnerabilities
CVE-2009-4488
- Severity: medium (CVSS 5.0 v2.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 13.0% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2010-01-13 · updated 2026-06-16
- Weakness: CWE-20
Description
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.
Affected products
References
- http://www.securityfocus.com/archive/1/508830/100/0/threaded
- http://www.securityfocus.com/bid/37713
- http://www.ush.it/team/ush/hack_httpd_escape/adv.txt
- http://www.securityfocus.com/archive/1/508830/100/0/threaded
- http://www.securityfocus.com/bid/37713
- http://www.ush.it/team/ush/hack_httpd_escape/adv.txt
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