Critical severity · published Jul 17, 2020
CVE-2020-14001
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…
9.8
CVSS
4.6%
EPSS
No
On KEV
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
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)4.6% · higher than 92% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DL
Debian Linux · Debian
9.0; 10.0 · source: NVD
FE
Fedora · Fedoraproject
31; 32 · source: NVD
KR
Kramdown · Kramdown Project
before 2.3.0 · source: NVD
UL
Ubuntu Linux · Canonical
20.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-14001
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-14001
Third Party Advisory
https://github.com/gettalong/kramdown
Patch
https://github.com/gettalong/kramdown/commit/1b8fd33c3120bfc6e5164b449e2c2fc9c9306fde
Patch
https://github.com/gettalong/kramdown/compare/REL_2_2_1...REL_2_3_0
Vendor Advisory
https://kramdown.gettalong.org
Release Notes
https://kramdown.gettalong.org/news.html
lists.apache.org
https://lists.apache.org/thread.html/r96df7899fbb456fe2705882f710a0c8e8614b573fbffd8d12e3f54d2%40%3Cnotifications.fluo.apache.org%3E
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