Vulnerability Details : CVE-2020-21056
Directory Traversal vulnerability exists in FusionPBX 4.5.7, which allows a remote malicious user to create folders via the folder variale to app\edit\foldernew.php.
Vulnerability category: Directory traversal
Products affected by CVE-2020-21056
- cpe:2.3:a:fusionpbx:fusionpbx:4.5.7:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-21056
0.06%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 22 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-21056
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.0
|
MEDIUM | AV:N/AC:L/Au:S/C:N/I:P/A:N |
8.0
|
2.9
|
NIST | |
4.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
2.8
|
1.4
|
NIST |
CWE ids for CVE-2020-21056
-
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: nvd@nist.gov (Primary)
References for CVE-2020-21056
-
https://github.com/fusionpbx/fusionpbx/commit/cad71240dee2a82cd5766dd67039a87849031aaa
Update and rename foldernew.php to folder_new.php · fusionpbx/fusionpbx@cad7124 · GitHubPatch;Third Party Advisory
-
https://resp3ctblog.wordpress.com/2019/10/28/fusionpbx-path-traversal-5/
FusionPBX Path traversal 5 – Resp3ct blogThird Party Advisory
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