CVE-2021-28834
Kramdown Rouge Code Execution
Description
Kramdown before 2.3.1 does not restrict Rouge formatters to the Rouge::Formatters namespace, and thus arbitrary classes can be instantiated.
INFO
Published Date :
March 19, 2021, 7:15 a.m.
Last Modified :
Nov. 7, 2023, 3:32 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
Affected Products
The following products are affected by CVE-2021-28834
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-28834.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-28834 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-28834 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/S3BBLUIDCUUR3NEE4NJLOCCAV3ALQ3O6/ [No types assigned] Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SYOLQKFL6IJCQLBXV34Z4TI4O54GESPR/ [No types assigned] Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NJCJVYHPY6LNUFM6LYZIAUIYOMVT5QGV/ [No types assigned] Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/S3BBLUIDCUUR3NEE4NJLOCCAV3ALQ3O6/ Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/SYOLQKFL6IJCQLBXV34Z4TI4O54GESPR/ Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/NJCJVYHPY6LNUFM6LYZIAUIYOMVT5QGV/ -
Modified Analysis by [email protected]
Apr. 19, 2021
Action Type Old Value New Value Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/NJCJVYHPY6LNUFM6LYZIAUIYOMVT5QGV/ Mailing List, Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/NJCJVYHPY6LNUFM6LYZIAUIYOMVT5QGV/ Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/S3BBLUIDCUUR3NEE4NJLOCCAV3ALQ3O6/ Mailing List, Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/S3BBLUIDCUUR3NEE4NJLOCCAV3ALQ3O6/ Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/SYOLQKFL6IJCQLBXV34Z4TI4O54GESPR/ Mailing List, Third Party Advisory https://lists.fedoraproject.org/archives/list/[email protected]/message/SYOLQKFL6IJCQLBXV34Z4TI4O54GESPR/ Third Party Advisory Changed Reference Type https://www.debian.org/security/2021/dsa-4890 No Types Assigned https://www.debian.org/security/2021/dsa-4890 Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Apr. 13, 2021
Action Type Old Value New Value Added Reference https://www.debian.org/security/2021/dsa-4890 [No Types Assigned] -
Modified Analysis by [email protected]
Mar. 31, 2021
Action Type Old Value New Value Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/NJCJVYHPY6LNUFM6LYZIAUIYOMVT5QGV/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/NJCJVYHPY6LNUFM6LYZIAUIYOMVT5QGV/ Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/S3BBLUIDCUUR3NEE4NJLOCCAV3ALQ3O6/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/S3BBLUIDCUUR3NEE4NJLOCCAV3ALQ3O6/ Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/SYOLQKFL6IJCQLBXV34Z4TI4O54GESPR/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/SYOLQKFL6IJCQLBXV34Z4TI4O54GESPR/ Mailing List, Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Mar. 30, 2021
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/SYOLQKFL6IJCQLBXV34Z4TI4O54GESPR/ [No Types Assigned] Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/NJCJVYHPY6LNUFM6LYZIAUIYOMVT5QGV/ [No Types Assigned] -
CVE Modified by [email protected]
Mar. 26, 2021
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/S3BBLUIDCUUR3NEE4NJLOCCAV3ALQ3O6/ [No Types Assigned] -
Initial Analysis by [email protected]
Mar. 25, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/gettalong/kramdown/compare/REL_2_3_0...REL_2_3_1 No Types Assigned https://github.com/gettalong/kramdown/compare/REL_2_3_0...REL_2_3_1 Patch, Third Party Advisory Changed Reference Type https://github.com/gettalong/kramdown/pull/708 No Types Assigned https://github.com/gettalong/kramdown/pull/708 Exploit, Third Party Advisory Changed Reference Type https://gitlab.com/gitlab-org/gitlab/-/commit/179329b5c3c118924fb242dc449d06b4ed6ccb66 No Types Assigned https://gitlab.com/gitlab-org/gitlab/-/commit/179329b5c3c118924fb242dc449d06b4ed6ccb66 Patch, Third Party Advisory Added CWE NIST NVD-CWE-noinfo Added CPE Configuration OR *cpe:2.3:a:kramdown_project:kramdown:*:*:*:*:*:ruby:*:* versions up to (excluding) 2.3.1
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-28834 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-28834
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
2.00 }} 0.28%
score
0.87515
percentile