CVE-2009-4492
HIGH severity · CVSS 7.5
7.5CVSS HIGH
Summary
WEBrick 1.3.1 in Ruby 1.8.6 through patchlevel 383, 1.8.7 through patchlevel 248, 1.8.8dev, 1.9.1 through patchlevel 376, and 1.9.2dev 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.
Impact & exploitability
Attack vectorNetwork
Attack complexityLow
Privileges required—
User interaction—
Confidentiality impact—
Integrity impact—
Availability impact—
Exploit probability (EPSS)16%
AV:N/AC:L/Au:N/C:P/I:P/A:P
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: http://www.ruby-lang.org/en/news/2010/01/10/webrick-escape-sequence-injection ↗
Additional information
- NVD record
- http://www.ruby-lang.org/en/news/2010/01/10/webrick-escape-sequence-injectionPatch
- http://secunia.com/advisories/37949Advisory
- http://www.redhat.com/support/errata/RHSA-2011-0908.htmlAdvisory
- http://www.redhat.com/support/errata/RHSA-2011-0909.htmlAdvisory
- http://www.securityfocus.com/archive/1/508830/100/0/threadedAdvisory
- http://securitytracker.com/id?1023429Advisory
- http://www.securityfocus.com/bid/37710Advisory
- http://www.ush.it/team/ush/hack_httpd_escape/adv.txtExploit