Nokogiri Command Injection Vulnerability
GHSA-cr5j-953j-xw5p · CVE-2019-5477
Published · Modified
AI SAST
Find this class of vulnerability in your own code
Corgea's AI-native static analysis detects vulnerabilities like this one across your repositories, ranks them by exploitability, and returns review-ready fixes.
Description
A command injection vulnerability in Nokogiri v1.10.3 and earlier allows commands to be executed in a subprocess via Ruby's Kernel.open method. Processes are vulnerable only if the undocumented method Nokogiri::CSS::Tokenizer#load_file is being called with unsafe user input as the filename. This vulnerability appears in code generated by the Rexical gem versions v1.0.6 and earlier. Rexical is used by Nokogiri to generate lexical scanner code for parsing CSS queries. The underlying vulnerability was addressed in Rexical v1.0.7 and Nokogiri upgraded to this version of Rexical in Nokogiri v1.10.4.
References
- ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2019-5477
- WEB https://github.com/sparklemotion/nokogiri/issues/1915
- WEB https://github.com/sparklemotion/nokogiri/commit/5d30128343573a9428c86efc758ba2c66e9f12dc
- WEB https://github.com/tenderlove/rexical/commit/a652474dbc66be350055db3e8f9b3a7b3fd75926
- WEB https://hackerone.com/reports/650835
- WEB https://github.com/rubysec/ruby-advisory-db/blob/master/gems/nokogiri/CVE-2019-5477.yml
- WEB https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rexical/CVE-2019-5477.yml
- PACKAGE https://github.com/sparklemotion/nokogiri
- WEB https://github.com/tenderlove/rexical/blob/master/CHANGELOG.rdoc
- WEB https://lists.debian.org/debian-lts-announce/2019/09/msg00027.html
- WEB https://lists.debian.org/debian-lts-announce/2022/10/msg00018.html
- WEB https://lists.debian.org/debian-lts-announce/2022/10/msg00019.html
- WEB https://security.gentoo.org/glsa/202006-05
- WEB https://usn.ubuntu.com/4175-1
Ready to move
Start Securing
Free, no credit card | First findings in minutes