Vulnerability 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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ruby-Lang | Webrick | 1.3.1 |
| Ruby-Lang | Ruby | >= 1.8.6, <= 1.8.6.383 |
References
- http://secunia.com/advisories/37949Not ApplicableVendor Advisory
- http://securitytracker.com/id?1023429Broken LinkExploitThird Party Advisory
- 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-injectionPatchVendor Advisory
- http://www.securityfocus.com/archive/1/508830/100/0/threadedBroken LinkThird Party AdvisoryVDB Entry
- http://www.securityfocus.com/bid/37710Broken LinkExploitThird Party Advisory
- http://www.ush.it/team/ush/hack_httpd_escape/adv.txtBroken LinkExploit
- http://www.vupen.com/english/advisories/2010/0089Permissions Required
- http://secunia.com/advisories/37949Not ApplicableVendor Advisory
- http://securitytracker.com/id?1023429Broken LinkExploitThird Party Advisory
- 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-injectionPatchVendor Advisory
- http://www.securityfocus.com/archive/1/508830/100/0/threadedBroken LinkThird Party AdvisoryVDB Entry
FAQ
What is CVE-2009-4492?
CVE-2009-4492 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 charac...
How severe is CVE-2009-4492?
CVE-2009-4492 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2009-4492?
Check the references section above for vendor advisories and patch information. Affected products include: Ruby-Lang Webrick, Ruby-Lang Ruby.