gettalong/kramdown · Security
Unintended read access in kramdown gem
- GHSA ID
- GHSA-mqm2-cgpr-p4m6
- CVE ID
- CVE-2020-14001
- Severity
- critical
- Published
- Updated
- CVSS
- 9.8 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS v3
- 9.8 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Description
The kramdown gem before 2.3.0 for Ruby processes the template option inside Kramdown documents by default, which allows unintended read access (such as template="/etc/passwd") or unintended embedded Ruby code execution (such as a string that begins with template="string://<%= `). NOTE: kramdown is used in Jekyll, GitLab Pages, GitHub Pages, and Thredded Forum.
CWEs
- CWE-862 · Missing Authorization
References
- https://nvd.nist.gov/vuln/detail/CVE-2020-14001 ↗
- https://github.com/gettalong/kramdown/commit/1b8fd33c3120bfc6e5164b449e2c2fc9c9306fde ↗
- https://github.com/gettalong/kramdown/compare/REL_2_2_1...REL_2_3_0 ↗
- https://kramdown.gettalong.org ↗
- https://kramdown.gettalong.org/news.html ↗
- https://rubygems.org/gems/kramdown ↗
- https://security.netapp.com/advisory/ntap-20200731-0004/ ↗
- https://lists.apache.org/thread.html/r96df7899fbb456fe2705882f710a0c8e8614b573fbffd8d12e3f54d2@%3Cnotifications.fluo.apache.org%3E ↗
- https://lists.debian.org/debian-lts-announce/2020/08/msg00014.html ↗
- https://www.debian.org/security/2020/dsa-4743 ↗
- https://lists.fedoraproject.org/archives/list/[email protected]/message/ENMMGKHRQIZ3QKGOMBBBGB6B4LB5I7NQ/ ↗
- https://lists.fedoraproject.org/archives/list/[email protected]/message/KBLTGBYU7NKOUOHDKVCU4GFZMGA6BP4L/ ↗
- https://usn.ubuntu.com/4562-1/ ↗
- https://github.com/advisories/GHSA-mqm2-cgpr-p4m6 ↗
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/kramdown/CVE-2020-14001.yml ↗