Vulnerability Details : CVE-2019-16990
In FusionPBX up to v4.5.7, the file app/music_on_hold/music_on_hold.php uses an unsanitized "file" variable coming from the URL, which takes any pathname (base64 encoded) and allows a download of it.
Vulnerability category: Directory traversal
Products affected by CVE-2019-16990
- cpe:2.3:a:fusionpbx:fusionpbx:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-16990
0.44%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 60 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-16990
| 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 |
CWE ids for CVE-2019-16990
-
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-2019-16990
-
https://resp3ctblog.wordpress.com/2019/10/19/fusionpbx-path-traversal-3/
FusionPBX Path traversal 3 – Resp3ct blogThird Party Advisory
-
https://github.com/fusionpbx/fusionpbx/commit/95ed18aa9d781f232f5686a9027bb6f677c9b8da
Update music_on_hold.php · fusionpbx/fusionpbx@95ed18a · GitHubPatch
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