CVE-2009-4488: Input Validation
DISPUTED 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 Software
Event History
Frequently Asked Questions
What is the severity of CVE-2009-4488?
The severity of CVE-2009-4488 is considered moderate due to potential risks of remote command execution.
How do I fix CVE-2009-4488?
To fix CVE-2009-4488, update to a patched version of Varnish or apply available security patches.
What impacts does CVE-2009-4488 have on Varnish 2.0.6?
CVE-2009-4488 allows remote attackers to execute arbitrary commands or manipulate the window's title through non-sanitized log file data.
Does CVE-2009-4488 affect other versions of Varnish?
CVE-2009-4488 specifically affects Varnish version 2.0.6 and may not impact later versions if patched.
Who is vulnerable to CVE-2009-4488?
Users running Varnish version 2.0.6 are vulnerable to CVE-2009-4488, particularly those exposed to external HTTP requests.