Out-of-bounds write in FortiProxy and FortiOS - CVE-2023-22640
Published: May 4, 2023
Vulnerability identifier: #VU75734
CSH Severity: High
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-22640
CWE-ID: CWE-787
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to compromise vulnerable system.
The vulnerability exists due to a boundary error in sslvpnd. A remote authenticated user can send a specially crafted request to trigger an out-of-bounds write and execute arbitrary code on the target system.
Affected software
FortiProxy
RUGGEDCOM APE1808
FortiOS
RUGGEDCOM APE1808
FortiOS
How to mitigate CVE-2023-22640
Install updates from vendor's website.
FortiProxy - addressed in versions 7.0.8, 7.2.2
FortiOS - addressed in versions 6.2.14, 6.4.12, 7.0.11, 7.2.4
FortiOS - addressed in versions 6.2.14, 6.4.12, 7.0.11, 7.2.4