Vulnerability Description
The sanitize helper in lib/action_controller/vendor/html-scanner/html/sanitizer.rb in the Action Pack component in Ruby on Rails before 2.3.18, 3.0.x and 3.1.x before 3.1.12, and 3.2.x before 3.2.13 does not properly handle encoded : (colon) characters in URLs, which makes it easier for remote attackers to conduct cross-site scripting (XSS) attacks via a crafted scheme name, as demonstrated by including a : sequence.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Redhat | Enterprise Linux | 6.0 |
| Rubyonrails | Rails | 0.9.1 |
| Rubyonrails | Ruby On Rails | <= 2.3.17 |
Related Weaknesses (CWE)
References
- http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html
- http://lists.apple.com/archives/security-announce/2013/Oct/msg00006.html
- http://lists.opensuse.org/opensuse-updates/2013-04/msg00072.html
- http://lists.opensuse.org/opensuse-updates/2013-04/msg00073.html
- http://lists.opensuse.org/opensuse-updates/2014-01/msg00013.html
- http://rhn.redhat.com/errata/RHSA-2013-0698.html
- http://rhn.redhat.com/errata/RHSA-2014-1863.html
- http://support.apple.com/kb/HT5784
- http://weblog.rubyonrails.org/2013/3/18/SEC-ANN-Rails-3-2-13-3-1-12-and-2-3-18-h
- https://groups.google.com/group/rubyonrails-security/msg/78b9817a5943f6d6?dmode=
- http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html
- http://lists.apple.com/archives/security-announce/2013/Oct/msg00006.html
- http://lists.opensuse.org/opensuse-updates/2013-04/msg00072.html
- http://lists.opensuse.org/opensuse-updates/2013-04/msg00073.html
- http://lists.opensuse.org/opensuse-updates/2014-01/msg00013.html
FAQ
What is CVE-2013-1857?
CVE-2013-1857 is a vulnerability with a CVSS score of 4.3 (MEDIUM). The sanitize helper in lib/action_controller/vendor/html-scanner/html/sanitizer.rb in the Action Pack component in Ruby on Rails before 2.3.18, 3.0.x and 3.1.x before 3.1.12, and 3.2.x before 3.2.13 d...
How severe is CVE-2013-1857?
CVE-2013-1857 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2013-1857?
Check the references section above for vendor advisories and patch information. Affected products include: Redhat Enterprise Linux, Rubyonrails Rails, Rubyonrails Ruby On Rails.