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             AUSCERT External Security Bulletin Redistribution

                               ESB-2021.3006
                         FortiWeb Vulnerabilities
                             8 September 2021

===========================================================================

        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           FortiWeb
Publisher:         FortiGuard Labs
Operating System:  Network Appliance
Impact/Access:     Execute Arbitrary Code/Commands -- Existing Account
                   Reduced Security                -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2021-36182 CVE-2021-36179 

Original Bulletin: 
   https://fortiguard.com/psirt/FG-IR-20-206
   https://fortiguard.com/psirt/FG-IR-21-047

Comment: This bulletin contains two (2) FortiGuard Labs security advisories.

- --------------------------BEGIN INCLUDED TEXT--------------------

FortiWeb - Multiple stack-based buffer overflow vulnerabilities in CLI command

IR Number    : FG-IR-20-206
Date         : Sep 7, 2021
Risk         : 4/5
CVSSv3 Score : 7.8
Impact       : Execute unauthorized code or commands
CVE ID       : CVE-2021-36179
Affected Products: FortiWeb: 6.3.9, 6.3.8, 6.3.7, 6.3.6, 6.3.5, 6.3.4, 6.3.3, 6.3.2, 6.3.14, 6.3.13, 6.3.12, 6.3.11, 6.3.10, 6.3.1, 6.3.0, 6.2.4, 6.2.3, 6.2.2, 6.2.1, 6.2.0
Language     : English
Portuguese

Summary

Multiple stack-based buffer overflow vulnerabilities in FortiWeb CLI interface
may allow an authenticated attacker to execute unauthorized code or commands
via `config backup` arguments.

Affected Products

FortiWeb version 6.3.14 or below
FortiWeb version 6.2.4 or below

Solutions

Upgrade to FortiWeb 6.4.0 or above

Upgrade to FortiWeb 6.3.15 or above

Upgrade to FortiWeb 6.2.5 or above

Acknowledgement

Internally discovered and reported by Mattia Fecit of Fortinet PSIRT team.

- --------------------------------------------------------------------------------

FortiWeb - OS Command Injection because of missing input parameter sanitization

IR Number    : FG-IR-21-047
Date         : Sep 7, 2021
Risk         : 4/5
CVSSv3 Score : 8.3
Impact       : Execute unauthorized code or commands
CVE ID       : CVE-2021-36182
Affected Products: FortiWeb: 6.3.9, 6.3.8, 6.3.7, 6.3.6, 6.3.5, 6.3.4, 6.3.3, 6.3.2, 6.3.13, 6.3.12, 6.3.11, 6.3.10, 6.3.1, 6.3.0, 6.2.4

Summary

Multiple improper neutralization of special elements vulnerabilities [CWE-89]
used in a command in FortiWeb may allow an authenticated attacker to execute
unauthorized code or commands via crafted parameters of HTTP requests.

Affected Products

FortiWeb version 6.3.13 or below is impacted
FortiWeb version 6.2.4 or below is impacted

Solutions

Upgrade to FortiWeb 6.3.14 or above
Upgrade to FortiWeb 6.2.5 or above

Acknowledgement

Fortinet is pleased to thank H4lo from DBappSecurity Co.,Ltd Hatlab for
reporting this vulnerability under responsible disclosure.

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