Buffer overflow in FortiOS - CVE-2018-13381
Published: June 4, 2019 / Updated: February 3, 2021
Vulnerability identifier: #VU50300
CSH Severity: High
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-13381
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing HTTP POST requests in SSL VPN web portal. A remote attacker can trick a victim to visit a specially crafted website and execute arbitrary code on the device.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
FortiOS
FortiProxy
FortiProxy
How to mitigate CVE-2018-13381
Install updates from vendor's website.
FortiOS - addressed in versions 5.6.8, 6.0.5
FortiProxy - addressed in versions 1.2.9, 2.0.1
FortiProxy - addressed in versions 1.2.9, 2.0.1