CVE-2009-4492
WEBrick Improper Input Validation vulnerability
EPSS 21.1%
Description
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.
How to fix CVE-2009-4492
To remediate CVE-2009-4492, upgrade the affected package to a fixed version below.
- RubyGems/webrick—upgrade to 1.4.0 or later
Is CVE-2009-4492 being exploited?
Moderate — EPSS is 21.1%. Track this CVE but it's not at the top of the prioritisation list.
Affected packages (1)
- from 0, < 1.4.0