medium
6.3
CWE
119
Advisory Published
Updated

FG-IR-21-173: Buffer overflow in TFTP client library of CLI

First published: Tue Dec 07 2021(Updated: )

A buffer overflow [CWE-121] in the TFTP client library of FortiOS, may allow an authenticated local attacker to achieve arbitrary code execution via specially crafted command line arguments.

Affected SoftwareAffected VersionHow to fix
Fortinet FortiADC>=6.2.0<=6.2.2
Fortinet FortiADC>=6.1.0<=6.1.5
Fortinet FortiADC>=6.0
Fortinet FortiADC>=5.4
Fortinet FortiADC>=5.3
Fortinet FortiADC>=5.2
Fortinet FortiADC>=5.1
Fortinet FortiADC>=5.0
Fortinet FortiAnalyzer>=7.0.0<=7.0.2
Fortinet FortiAnalyzer>=6.4.0<=6.4.7
Fortinet FortiAnalyzer>=6.2
Fortinet FortiAnalyzer>=6.0
Fortinet FortiDDoS-F>=5.5.0<=5.5.1
Fortinet FortiDDoS-F>=5.4
Fortinet FortiDDoS-F>=5.3
Fortinet FortiDDoS-F>=5.2
Fortinet FortiDDoS-F>=5.1
Fortinet FortiDDoS-F>=5.0
Fortinet FortiDDoS-F>=4.7
Fortinet FortiDDoS-F>=4.6
Fortinet FortiDDoS-F>=4.5
Fortinet FortiDDoS-F>=4.4
Fortinet FortiDDoS-F>=6.4.0<=6.4.1
Fortinet FortiDDoS-F=.
Fortinet FortiDDoS-F>=6.2.0<=6.2.2
Fortinet FortiDDoS-F>=6.1.0<=6.1.4
Fortinet Fortimail-200d>=7.0.0<=7.0.2
Fortinet Fortimail-200d>=6.4.0<=6.4.6
Fortinet Fortimail-200d>=6.2.0<=6.2.7
Fortinet Fortimail-200d>=6.0
Fortinet Fortimail-200d>=5.4
Fortinet FortiManager>=7.0.0<=7.0.2
Fortinet FortiManager>=6.4.0<=6.4.7
Fortinet FortiManager>=6.2
Fortinet FortiManager>=6.0
Fortinet FortiNDR>=1.5.0<=1.5.2
Fortinet FortiNDR>=1.4
Fortinet FortiNDR>=1.3
Fortinet FortiNDR>=1.2
Fortinet FortiNDR>=1.1
Fortinet FortiOS IPS Engine>=7.0.0<=7.0.2
Fortinet FortiOS IPS Engine>=6.4.0<=6.4.7
Fortinet FortiOS IPS Engine>=6.2.0<=6.2.9
Fortinet FortiOS IPS Engine>=6.0.0<=6.0.13
Fortinet FortiOS IPS Engine>=5.6
Fortinet FortiOS IPS Engine>=5.4
Fortinet FortiOS IPS Engine>=5.2
Fortinet FortiOS IPS Engine>=5.0
Fortinet FortiOS=.
Fortinet FortiOS>=6.2.6<=6.2.7
Fortinet FortiOS=.
Fortinet FortiOS>=6.0.12<=6.0.17
Fortinet FortiOS=.
Fortinet FortiPortal>=6.0.0<=6.0.10
Fortinet FortiPortal>=5.3
Fortinet FortiPortal>=5.2
Fortinet FortiPortal>=5.1
Fortinet FortiPortal>=5.0
Fortinet FortiProxy>=7.0.0<=7.0.1
Fortinet FortiProxy>=2.0.0<=2.0.7
Fortinet FortiProxy>=1.2
Fortinet FortiProxy>=1.1
Fortinet FortiProxy>=1.0
Fortinet FortiRecorder 400D>=6.4.0<=6.4.2
Fortinet FortiRecorder 400D>=6.0.0<=6.0.10
Fortinet FortiRecorder 400D>=2.7.0<=2.7.7
Fortinet FortiRecorder 400D>=2.6
Fortinet FortiSwitch>=7.0.0<=7.0.3
Fortinet FortiSwitch>=6.4.0<=6.4.9
Fortinet FortiSwitch>=6.2.0<=6.2.7
Fortinet FortiSwitch>=6.0
Fortinet FortiVoice Enterprise>=6.4.0<=6.4.4
Fortinet FortiVoice Enterprise>=6.0.0<=6.0.10
Fortinet FortiWeb>=6.4.0<=6.4.1
Fortinet FortiWeb>=6.3.0<=6.3.16
Fortinet FortiWeb>=6.2
Fortinet FortiWeb>=6.1
Fortinet FortiWeb>=6.0
Fortinet FortiWeb>=5.9
Fortinet FortiWeb>=5.8
Fortinet FortiWeb>=5.7
Fortinet FortiWeb>=5.6
Fortinet FortiWeb>=5.5
Fortinet FortiWeb>=5.4
Fortinet FortiWeb>=5.3
Fortinet FortiWeb>=5.2
Fortinet FortiWeb>=5.1
Fortinet FortiWeb>=5.0

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Reference Links

Frequently Asked Questions

  • What is the vulnerability description of FG-IR-21-173?

    FG-IR-21-173 is a buffer overflow vulnerability in the TFTP client library of FortiOS that could allow authenticated local attackers to execute arbitrary code via specially crafted command line arguments.

  • What are the affected products by FG-IR-21-173?

    FG-IR-21-173 affects several Fortinet products including FortiADC, FortiAnalyzer, FortiDDoS, FortiMail, FortiManager, FortiNDR, FortiOS and others across various versions.

  • What is the severity of FG-IR-21-173?

    FG-IR-21-173 is considered a critical vulnerability due to the potential for arbitrary code execution by authenticated local attackers.

  • How do I fix FG-IR-21-173?

    To fix FG-IR-21-173, update the affected Fortinet products to the recommended versions listed in Fortinet's advisory.

  • Can FG-IR-21-173 be exploited remotely?

    No, FG-IR-21-173 can only be exploited by authenticated local attackers, not remotely.

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