Stack-based buffer overflow in FortiWeb - CVE-2021-36179
Published: September 7, 2021
Vulnerability identifier: #VU56379
CSH Severity: Medium
CVSS v4: 8.6 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-36179
CWE-ID: CWE-121
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in FortiWeb CLI interface. A remote user can trigger a stack-based buffer overflow and execute unauthorized code or commands via `config backup` arguments.
Affected software
FortiWeb
How to mitigate CVE-2021-36179
Install updates from vendor's website.
FortiWeb - addressed in versions 6.2.5, 6.3.15