WEBrick Improper Input Validation vulnerability (GHSA-6mq2-37j5-w6r6)
Published: 2017-10-24T18:33:38Z
Aliases: CVE-2009-4492
Severity: MODERATE · CWE: CWE-20

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.

Affected packages:
package: ecosystem: RubyGems
name: webrick
ranges: type: ECOSYSTEM
events: introduced: 0
fixed: 1.4.0
database_specific: last_known_affected_version_range: <= 1.3.1