XXE in Nokogiri (sparklemotion nokogiri)
At a glance
- Source
- NVD
- EPSS
- EPSS 1.18 % · percentile 68 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- GitHub_M
- NVD status
- Modified
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.
Weaknesses (CWE)
- CWE-611 — Improper Restriction of XML External Entity Reference
References
- https://github.com/sparklemotion/nokogiri/security/advisories/GHSA-vr8q-g5c7-m54m
- https://rubygems.org/gems/nokogiri
- https://hackerone.com/reports/747489
- https://github.com/sparklemotion/nokogiri/releases/tag/v1.11.0.rc4
- https://github.com/sparklemotion/nokogiri/commit/9c87439d9afa14a365ff13e73adc809cb2c3d97b
- https://lists.debian.org/debian-lts-announce/2021/06/msg00007.html
- https://security.gentoo.org/glsa/202208-29
- https://lists.debian.org/debian-lts-announce/2022/10/msg00018.html
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | LOW 2.6 | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N | GitHub_M |
| CVSS 3.1 | LOW 2.6 | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:N/A:N | NVD · security-advisories@github.com (Secondary) |
| CVSS 3.1 | MEDIUM 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | MEDIUM 4.0 | AV:N/AC:L/Au:S/C:P/I:N/A:N | NVD · nvd@nist.gov (Primary) |
Advisories
- GHSA-vr8q-g5c7-m54m — Nokogiri::XML::Schema trusts input by default, exposing risk of XXE vulnerability
European references
- ENISA EUVD · EUVD-2020-1507
- GCVE · GCVE-0-2020-26247
Affected configurations (NVD CPE)
cpe:2.3:a:nokogiri:nokogiri:*:*:*:*:*:ruby:*:*< 1.11.0cpe:2.3:a:nokogiri:nokogiri:1.11.0:rc1:*:*:*:ruby:*:*cpe:2.3:a:nokogiri:nokogiri:1.11.0:rc2:*:*:*:ruby:*:*cpe:2.3:a:nokogiri:nokogiri:1.11.0:rc3:*:*:*:ruby:*:*cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| sparklemotion · nokogiri | affected < 1.11.0.rc4 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |