Vulnerability Details : CVE-2018-12559
An issue was discovered in the cantata-mounter D-Bus service in Cantata through 2.3.1. The mount target path check in mounter.cpp `mpOk()` is insufficient. A regular user can consequently mount a CIFS filesystem anywhere (e.g., outside of the /home directory tree) by passing directory traversal sequences such as a home/../usr substring.
Vulnerability category: Directory traversal
Products affected by CVE-2018-12559
- cpe:2.3:a:cantata_project:cantata:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-12559
0.40%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 58 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-12559
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.5
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:P/A:P |
8.0
|
6.4
|
NIST | |
|
8.8
|
HIGH | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2018-12559
-
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-2018-12559
-
http://www.openwall.com/lists/oss-security/2018/06/18/1
oss-security - cantata: cantata-mounter D-Bus service local privilege escalation and other security issuesMailing List;Technical Description
-
https://github.com/CDrummond/cantata/commit/afc4f8315d3e96574925fb530a7004cc9e6ce3d3
Remove internal Samba shre mounting code, this had some privilege esc… · CDrummond/cantata@afc4f83 · GitHubPatch;Technical Description
Jump to