MEDIUM
GHSA-q759-hwvc-m3jg
actionpack Cross-site Scripting vulnerability
Details
The `sanitize_css` method 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 `\n` (newline) characters, which makes it easier for remote attackers to conduct cross-site scripting (XSS) attacks via crafted Cascading Style Sheets (CSS) token sequences.
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Affected packages
References
- https://nvd.nist.gov/vuln/detail/CVE-2013-1855 [ADVISORY]
- https://access.redhat.com/errata/RHSA-2013:0698 [WEB]
- https://access.redhat.com/errata/RHSA-2014:1863 [WEB]
- https://access.redhat.com/security/cve/CVE-2013-1855 [WEB]
- https://bugzilla.redhat.com/show_bug.cgi?id=921331 [WEB]
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/actionpack/CVE-2013-1855.yml [WEB]
- https://groups.google.com/group/rubyonrails-security/msg/8ed835a97cdd1afd?dmode=source&output=gplain [WEB]
- https://web.archive.org/web/20130609174600/http://lists.apple.com/archives/security-announce/2013/Jun/msg00000.html [WEB]
- https://web.archive.org/web/20131109010518/http://lists.apple.com/archives/security-announce/2013/Oct/msg00006.html [WEB]
- http://lists.opensuse.org/opensuse-updates/2013-04/msg00072.html [WEB]
- http://lists.opensuse.org/opensuse-updates/2013-04/msg00073.html [WEB]
- http://lists.opensuse.org/opensuse-updates/2014-01/msg00013.html [WEB]
- http://rhn.redhat.com/errata/RHSA-2013-0698.html [WEB]
- http://rhn.redhat.com/errata/RHSA-2014-1863.html [WEB]
- http://support.apple.com/kb/HT5784 [WEB]
- http://weblog.rubyonrails.org/2013/3/18/SEC-ANN-Rails-3-2-13-3-1-12-and-2-3-18-have-been-released [WEB]