Vulnerability Details : CVE-2019-16155
A privilege escalation vulnerability in FortiClient for Linux 6.2.1 and below may allow a user with low privilege to overwrite system files as root with arbitrary content through system backup file via specially crafted "BackupConfig" type IPC client requests to the fctsched process. Further more, FortiClient for Linux 6.2.2 and below allow low privilege user write the system backup file under root privilege through GUI thus can cause root system file overwrite.
Vulnerability category: Gain privilege
Products affected by CVE-2019-16155
- cpe:2.3:a:fortinet:forticlient:*:*:*:*:*:linux:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-16155
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 11 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-16155
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.6
|
MEDIUM | AV:L/AC:L/Au:N/C:N/I:C/A:C |
3.9
|
9.2
|
NIST | |
|
7.1
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H |
1.8
|
5.2
|
NIST |
References for CVE-2019-16155
-
https://fortiguard.com/psirt/FG-IR-19-238
Privilege escalation and DoS in FortiClient for Linux through local IPC socket | FortiGuardVendor Advisory
-
https://danishcyberdefence.dk/blog/forticlient_linux
Multiple privilege escalations in FortiClient for Linux | Danish Cyber DefenceExploit;Third Party Advisory
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