Heap based overflow in CLI

Summary

A buffer overflow vulnerability [CWE-122] in the the command line interpreter of FortiWeb may allow an authenticated attacker to achieve arbitrary code execution via specifically crafted arguments to existing commands.

Affected Products

FortiWeb 7.2 all versions are not affected
FortiWeb version 7.0.0 through 7.0.1
FortiWeb 6.4 all versions
FortiWeb version 6.3.0 through 6.3.19
FortiWeb 6.2 all versions
FortiWeb 6.1 all versions
FortiWeb 6.0 all versions

Solutions

Upgrade to FortiWeb 7.0.2 or above,
upgrade to FortiWeb 6.3.20 or above.

Acknowledgement

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

Timeline

2023-02-16: Initial publication