CVE-2020-26247

 

Published at: - 30-12-2020 08:15

Last modified: - 19-10-2022 08:53

Total changes: - 8

Description

Nokogiri is a Rubygem providing HTML, XML, SAX, and Reader parsers with XPath and CSS selector support. In Nokogiri before version 1.11.0.rc4 there is an XXE vulnerability. XML Schemas parsed by Nokogiri::XML::Schema are trusted by default, allowing external resources to be accessed over the network, potentially enabling XXE or SSRF attacks. This behavior is counter to the security policy followed by Nokogiri maintainers, which is to treat all input as untrusted by default whenever possible. This is fixed in Nokogiri version 1.11.0.rc4.

Common Vulnerability Scoring System (CVSS)

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

 

Verification logic

 

Reference

• https://rubygems.org/gems/nokogiri
• https://github.com/sparklemotion/nokogiri/releases/tag/v1.11.0.rc4
• https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-vr8q-g5c7-m54m
• https://github.com/sparklemotion/nokogiri/commit/9c87439d9afa14a365ff13e73adc809cb2c3d97b
• https://hackerone.com/reports/747489
• [debian-lts-announce] 20210606 [SECURITY] [DLA 2678-1] ruby-nokogiri security update-Mailing List, Third Party Advisory
• GLSA-202208-29-Third Party Advisory
• [debian-lts-announce] 20221012 [SECURITY] [DLA 3149-1] ruby-nokogiri security update-Mailing List, Third Party Advisory

 

Keywords

NVD

 

CVE-2020-26247

 

CVE

 

Common vulnerabilities & exposures

 

CVSS

 

Common vulnerability scoring system

 

Security

 

Vulnerabilities

 

Exposures