CVE-2020-14001 Information

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.

CVSS Vector

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

Reference

https://github.com/gettalong/kramdown 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://lists.apache.org/thread.html/r96df7899fbb456fe2705882f710a0c8e8614b573fbffd8d12e3f54d2@3Cnotifications.fluo.apache.org3E https://lists.debian.org/debian-lts-announce/2020/08/msg00014.html https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ENMMGKHRQIZ3QKGOMBBBGB6B4LB5I7NQ/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KBLTGBYU7NKOUOHDKVCU4GFZMGA6BP4L/ https://rubygems.org/gems/kramdown https://security.netapp.com/advisory/ntap-20200731-0004/ https://usn.ubuntu.com/4562-1/ https://www.debian.org/security/2020/dsa-4743

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8