CVE-2019-5477

Published Aug 16, 2019 CVSS 3.1 · 9.8 Critical EPSS 5.9% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-1933-1 ruby-nokogiri security update
Debian DLA Debian DLA DLA-3149-1 ruby-nokogiri security update
Debian DLA Debian DLA DLA-3150-1 rexical security update
EUVD EUVD EUVD-2019-0629 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.
Github GHSA Github GHSA GHSA-cr5j-953j-xw5p Nokogiri Command Injection Vulnerability
Ubuntu USN Ubuntu USN USN-4175-1 Nokogiri vulnerability
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
hackerone
Published
Updated
Aug 4, 2024, 7:54 PM
Reserved
Jan 4, 2019, 12:00 AM
Status
Modified
Published
Aug 16, 2019, 4:15 PM
Modified
Jun 17, 2026, 2:37 AM