Vulnerability Details : CVE-2021-21269
Keymaker is a Mastodon Community Finder based Matrix Community serverlist page Server. In Keymaker before version 0.2.0, the assets endpoint did not check for the extension. The rust `join` method without checking user input might have made it abe to do a Path Traversal attack causing to read more files than allowed. This is fixed in version 0.2.0.
Vulnerability category: Directory traversal
Products affected by CVE-2021-21269
- cpe:2.3:a:keymaker_project:keymaker:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-21269
0.07%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 29 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-21269
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.0
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:N/A:N |
8.0
|
2.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
2.8
|
3.6
|
NIST | |
|
7.7
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |
3.1
|
4.0
|
GitHub, Inc. |
CWE ids for CVE-2021-21269
-
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.Assigned by: security-advisories@github.com (Primary)
References for CVE-2021-21269
-
https://github.com/keymaker-mx/keymaker/commit/63f3012b390ff1519a84100df9e5dff5058bb926
fix: Possible Path Traversal Attack issue. · keymaker-mx/keymaker@63f3012 · GitHubPatch;Third Party Advisory
-
https://github.com/keymaker-mx/keymaker/security/advisories/GHSA-pg25-xfcf-vjvm
Possible Path Traversal via assets · Advisory · keymaker-mx/keymaker · GitHubThird Party Advisory
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