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AUSCERT External Security Bulletin Redistribution
ESB-2021.3011
FortiAuthenticator - Command injection in CLI
8 September 2021
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AusCERT Security Bulletin Summary
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Product: FortiAuthenticator
Publisher: FortiGuard Labs
Operating System: Network Appliance
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-26116
Original Bulletin:
https://fortiguard.com/psirt/FG-IR-21-068
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FortiAuthenticator - Command injection in CLI
IR Number : FG-IR-21-068
Date : Sep 7, 2021
Risk : 4/5
CVSSv3 Score : 6.5
Impact : Execute unauthorized commands
CVE ID : CVE-2021-26116
Affected Products: FortiAuthenticator: 6.3.0, 6.2.1, 6.2.0, 6.1.2, 6.1.1, 6.1.0, 6.0.7, 6.0.6, 6.0.5, 6.0.4, 6.0.3, 6.0.2, 6.0.1, 6.0.0, 5.5.0, 5.4.1, 5.4.0, 5.3.1, 5.3.0, 5.2.2, 5.2.1, 5.2.0, 5.1.2, 5.1.1, 5.1.0, 5.0.0
Summary
An improper neutralization of special elements used in an OS command
vulnerability [CWE-78] in the command line interpreter of FortiAuthenticator
may allow an authenticated attacker to execute unauthorized commands via
specifically crafted arguments to existing commands.
Affected Products
FortiAuthenticator 6.3.0 and below.
FortiAuthenticator 6.2.1 and below.
FortiAuthenticator 6.2.0 and below.
Solutions
Upgrade to FortiAuthenticator 6.4.0 or above.
Upgrade to FortiAuthenticator 6.3.1 or above.
Acknowledgement
Internally discovered and reported by Giuseppe Cocomazzi of Fortinet Product
Security team.
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