Multiple Stack based buffer overflow in web interface

Summary

Multiple buffer overflow [CWE-121] vulnerabilities in the web server of FortiWeb may allow an authenticated attacker to achieve arbitrary code execution via specifically crafted HTTP requests.

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 6.3.6 through 6.3.19
FortiWeb 6.2 all versions are not affected
FortiWeb 6.1 all versions are not affected

Solutions

Please upgrade to FortiWeb version 7.0.2 or above
Please upgrade to FortiWeb version 6.3.20 or above

Acknowledgement

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

Timeline

2023-02-16: Initial publication