[FortiOS] Injection attacks in the WAF and IPS logs

Summary

An improper neutralization of input vulnerability in the FortiGate may allow a remote attacker to perform a stored cross site scripting attack (XSS) via the IPS and WAF logs dashboard.

Affected Products

FortiGate version 6.2.2 to 6.2.5.
FortiGate version 6.4.1 and below.

Please note that FortiGate version 5.6.x, 6.0.x, 6.2.0, 6.2.1 are NOT impacted by this issue.

Solutions

Please upgrade to FortiGate version 6.4.2 or above.
Please upgrade to FortiGate version 6.2.6 or above.

Acknowledgement

Fortinet is pleased to thank Forster Chiu from CYBERGROOT LTD; Mark Chapman of Chapman Technology Group, Inc; Wenceslas Lejeune and the SOC team from Cheops Technology and Oğuz DOKUMACI from Oyuncusundan.com for reporting this vulnerability under responsible disclosure.

Timeline

2020-12-01: Initial publication