CVE-2009-4492
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…
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EPSS puts the probability of exploitation in the next 30 days at 15.9%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.
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.
- CVSS 2.0
- 7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
- EPSS
- 15.94% probability · 97th percentile
- CISA KEV
- Not listed
- Affected
- ruby-lang/webrick
- Source
- cve@mitre.org
References
- http://secunia.com/advisories/37949Not Applicable, Vendor Advisory
- http://securitytracker.com/id?1023429Broken Link, Exploit, Third Party Advisory, VDB Entry
- http://www.redhat.com/support/errata/RHSA-2011-0908.htmlThird Party Advisory
- http://www.redhat.com/support/errata/RHSA-2011-0909.htmlThird Party Advisory
- http://www.ruby-lang.org/en/news/2010/01/10/webrick-escape-sequence-injectionPatch, Vendor Advisory
- http://www.securityfocus.com/archive/1/508830/100/0/threadedBroken Link, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/37710Broken Link, Exploit, Third Party Advisory, VDB Entry
- http://www.ush.it/team/ush/hack_httpd_escape/adv.txtBroken Link, Exploit
- http://www.vupen.com/english/advisories/2010/0089Permissions Required
- http://secunia.com/advisories/37949Not Applicable, Vendor Advisory
- http://securitytracker.com/id?1023429Broken Link, Exploit, Third Party Advisory, VDB Entry
- http://www.redhat.com/support/errata/RHSA-2011-0908.htmlThird Party Advisory
- http://www.redhat.com/support/errata/RHSA-2011-0909.htmlThird Party Advisory
- http://www.ruby-lang.org/en/news/2010/01/10/webrick-escape-sequence-injectionPatch, Vendor Advisory
- http://www.securityfocus.com/archive/1/508830/100/0/threadedBroken Link, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/37710Broken Link, Exploit, Third Party Advisory, VDB Entry
- http://www.ush.it/team/ush/hack_httpd_escape/adv.txtBroken Link, Exploit
- http://www.vupen.com/english/advisories/2010/0089Permissions Required
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.