The kramdown gem before 2.3.0 for Ruby processes the template...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
Am I Vulnerable?
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Credits & Attribution
No credits recorded in the NVD database.
References
- https://github.com/gettalong/kramdown
- https://kramdown.gettalong.org
- https://rubygems.org/gems/kramdown
- https://kramdown.gettalong.org/news.html
- https://github.com/gettalong/kramdown/commit/1b8fd33c3120bfc6e5164b449e2c2fc9c9306fde
- https://github.com/gettalong/kramdown/compare/REL_2_2_1...REL_2_3_0
- https://security.netapp.com/advisory/ntap-20200731-0004/
- https://lists.apache.org/thread.html/r96df7899fbb456fe2705882f710a0c8e8614b573fbffd8d12e3f54d2%40%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/package-announce%40lists.fedoraproject.org/message/KBLTGBYU7NKOUOHDKVCU4GFZMGA6BP4L/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ENMMGKHRQIZ3QKGOMBBBGB6B4LB5I7NQ/
- https://usn.ubuntu.com/4562-1/
More from kramdown project
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kramdown project
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Timeline
CVSS Vectors
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.