CVE-2021-43813
Grafana Directory Traversal MD File Vulnerability
Description
Grafana is an open-source platform for monitoring and observability. Grafana prior to versions 8.3.2 and 7.5.12 contains a directory traversal vulnerability for fully lowercase or fully uppercase .md files. The vulnerability is limited in scope, and only allows access to files with the extension .md to authenticated users only. Grafana Cloud instances have not been affected by the vulnerability. Users should upgrade to patched versions 8.3.2 or 7.5.12. For users who cannot upgrade, running a reverse proxy in front of Grafana that normalizes the PATH of the request will mitigate the vulnerability. The proxy will have to also be able to handle url encoded paths. Alternatively, for fully lowercase or fully uppercase .md files, users can block /api/plugins/.*/markdown/.* without losing any functionality beyond inlined plugin help text.
INFO
Published Date :
Dec. 10, 2021, 6:15 p.m.
Last Modified :
March 31, 2022, 4:31 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
1.4
Exploitability Score :
2.8
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-2021-43813.
| URL | Resource |
|---|---|
| http://www.openwall.com/lists/oss-security/2021/12/10/4 | Mailing List Patch Release Notes Third Party Advisory |
| https://github.com/github/securitylab-vulnerabilities/commit/689fc5d9fd665be4d5bba200a6a433b532172d0f | Broken Link |
| https://github.com/grafana/grafana/commit/fd48aee61e4328aae8d5303a9efd045fa0ca308d | Patch Third Party Advisory |
| https://github.com/grafana/grafana/security/advisories/GHSA-c3q8-26ph-9g2q | Patch Release Notes Third Party Advisory |
| https://grafana.com/blog/2021/12/10/grafana-8.3.2-and-7.5.12-released-with-moderate-severity-security-fix/ | Patch Release Notes Vendor Advisory |
| https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-5-12/ | Release Notes Vendor Advisory |
| https://grafana.com/docs/grafana/latest/release-notes/release-notes-8-3-2/ | Release Notes Vendor Advisory |
| https://security.netapp.com/advisory/ntap-20220107-0006/ | Third Party Advisory |
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-2021-43813 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-43813 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 -
Modified Analysis by [email protected]
Mar. 31, 2022
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N Changed Reference Type https://security.netapp.com/advisory/ntap-20220107-0006/ No Types Assigned https://security.netapp.com/advisory/ntap-20220107-0006/ Third Party Advisory -
CVE Modified by [email protected]
Jan. 10, 2022
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20220107-0006/ [No Types Assigned] -
Initial Analysis by [email protected]
Dec. 14, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:N/A:N) Changed Reference Type http://www.openwall.com/lists/oss-security/2021/12/10/4 No Types Assigned http://www.openwall.com/lists/oss-security/2021/12/10/4 Mailing List, Patch, Release Notes, Third Party Advisory Changed Reference Type https://github.com/github/securitylab-vulnerabilities/commit/689fc5d9fd665be4d5bba200a6a433b532172d0f No Types Assigned https://github.com/github/securitylab-vulnerabilities/commit/689fc5d9fd665be4d5bba200a6a433b532172d0f Broken Link Changed Reference Type https://github.com/grafana/grafana/commit/fd48aee61e4328aae8d5303a9efd045fa0ca308d No Types Assigned https://github.com/grafana/grafana/commit/fd48aee61e4328aae8d5303a9efd045fa0ca308d Patch, Third Party Advisory Changed Reference Type https://github.com/grafana/grafana/security/advisories/GHSA-c3q8-26ph-9g2q No Types Assigned https://github.com/grafana/grafana/security/advisories/GHSA-c3q8-26ph-9g2q Patch, Release Notes, Third Party Advisory Changed Reference Type https://grafana.com/blog/2021/12/10/grafana-8.3.2-and-7.5.12-released-with-moderate-severity-security-fix/ No Types Assigned https://grafana.com/blog/2021/12/10/grafana-8.3.2-and-7.5.12-released-with-moderate-severity-security-fix/ Patch, Release Notes, Vendor Advisory Changed Reference Type https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-5-12/ No Types Assigned https://grafana.com/docs/grafana/latest/release-notes/release-notes-7-5-12/ Release Notes, Vendor Advisory Changed Reference Type https://grafana.com/docs/grafana/latest/release-notes/release-notes-8-3-2/ No Types Assigned https://grafana.com/docs/grafana/latest/release-notes/release-notes-8-3-2/ Release Notes, Vendor Advisory Added CWE NIST CWE-22 Added CPE Configuration OR *cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:* versions from (including) 5.0.0 up to (excluding) 7.5.12 *cpe:2.3:a:grafana:grafana:*:*:*:*:*:*:*:* versions from (including) 8.0.0 up to (excluding) 8.3.2 -
CVE Modified by [email protected]
Dec. 11, 2021
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2021/12/10/4 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-43813 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-2021-43813
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
1.16 }} -0.48%
score
0.82989
percentile