Out-of-bound write in CLI

Summary

An out-of-bounds write vulnerability [CWE-787] in Command Line Interface of FortiOS and FortiProxy may allow an authenticated attacker to achieve arbitrary code execution via specifically crafted commands.

Affected Products

FortiProxy version 7.2.0 through 7.2.2
FortiProxy version 7.0.0 through 7.0.8
FortiProxy 2.0 all versions
FortiProxy 1.2 all versions
FortiProxy 1.1 all versions
FortiProxy 1.0 all versions
FortiOS 7.4 all versions are not affected
FortiOS version 7.2.0 through 7.2.3
FortiOS version 7.0.0 through 7.0.10
FortiOS version 6.4.0 through 6.4.12
FortiOS 6.2 all versions
FortiOS 6.0 all versions

Solutions

Please upgrade to FortiOS version 7.4.0 or above
Please upgrade to FortiOS version 7.2.4 or above
Please upgrade to FortiOS version 7.0.11 or above
Please upgrade to FortiOS version 6.4.13 or above
Please upgrade to FortiProxy version 7.2.3 or above
Please upgrade to FortiProxy version 7.0.9 or above

Acknowledgement

Internally discovered and reported by Gwendal Guégniaud of Fortinet Product Security team.

Timeline

2023-06-12: Initial publication