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===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2022.3263
FortiAnalyzer/FortiManager/FortiOS/FortiProxy - stack-based
buffer overflow via crafted CLI execute command
6 July 2022
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: FortiAnalyzer
FortiManager
FortiOS
FortiProxy
Publisher: FortiGuard
Operating System: Network Appliance
Resolution: Patch/Upgrade
CVE Names: CVE-2021-43072
Original Bulletin:
https://fortiguard.fortinet.com/psirt/FG-IR-21-206
Comment: CVSS (Max): 7.4 CVE-2021-43072 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C)
CVSS Source: FortiGuard
Calculator: https://nvd.nist.gov/vuln-metrics/cvss/v3-calculator?
vector=CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C
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FortiAnalyzer/FortiManager/FortiOS/FortiProxy - stack-based buffer overflow via crafted CLI execute command
IR Number : FG-IR-21-206
Date : Jul 5, 2022
Severity : High
CVSSv3 Score : 7.4
Impact : Execute unauthorized code or commands
CVE ID : CVE-2021-43072
Affected
Products : FortiManager : 7.0.2, 7.0.1, 7.0.0, 6.4.7, 6.4.6, 6.4.5, 6.4.4,
6.4.3, 6.4.2, 6.4.1, 6.4.0, 6.2.9, 6.2.8, 6.2.7,
6.2.6, 6.2.5, 6.2.4, 6.2.3, 6.2.2, 6.2.1, 6.2.0,
6.0.9, 6.0.8, 6.0.7, 6.0.6, 6.0.5, 6.0.4, 6.0.3,
6.0.2, 6.0.11, 6.0.10, 6.0.1, 6.0.0, 5.6.9, 5.6.8,
5.6.7, 5.6.6, 5.6.5, 5.6.4, 5.6.3, 5.6.2, 5.6.11,
5.6.10, 5.6.1, 5.6.0
FortiAnalyzer: 7.0.2, 7.0.1, 7.0.0, 6.4.7, 6.4.6, 6.4.5, 6.4.4,
6.4.3, 6.4.2, 6.4.1, 6.4.0, 6.2.9, 6.2.8, 6.2.7,
6.2.6, 6.2.5, 6.2.4, 6.2.3, 6.2.2, 6.2.1, 6.2.0,
6.0.9, 6.0.8, 6.0.7, 6.0.6, 6.0.5, 6.0.4, 6.0.3,
6.0.2, 6.0.11, 6.0.10, 6.0.1, 6.0.0, 5.6.9, 5.6.8,
5.6.7, 5.6.6, 5.6.5, 5.6.4, 5.6.3, 5.6.2, 5.6.11,
5.6.10, 5.6.1, 5.6.0
FortiOS : 7.0.5, 7.0.4, 7.0.3, 7.0.2, 7.0.1, 7.0.0, 6.4.8,
6.4.7, 6.4.6, 6.4.5, 6.4.4, 6.4.3, 6.4.2, 6.4.1,
6.4.0, 6.2.9, 6.2.8, 6.2.7, 6.2.6, 6.2.5, 6.2.4,
6.2.3, 6.2.2, 6.2.10, 6.2.1, 6.2.0, 6.0.9, 6.0.8,
6.0.7, 6.0.6, 6.0.5, 6.0.4, 6.0.3, 6.0.2, 6.0.14,
6.0.13, 6.0.12, 6.0.11, 6.0.10, 6.0.1, 6.0.0
FortiProxy : 7.0.3, 7.0.2, 7.0.1, 7.0.0, 2.0.8, 2.0.7, 2.0.6,
2.0.5, 2.0.4, 2.0.3, 2.0.2, 2.0.1, 2.0.0, 1.2.9,
1.2.8, 1.2.7, 1.2.6, 1.2.5, 1.2.4, 1.2.3, 1.2.2,
1.2.13, 1.2.12, 1.2.11, 1.2.10, 1.2.1, 1.2.0,
1.1.6, 1.1.5, 1.1.4, 1.1.3, 1.1.2, 1.1.1, 1.1.0,
1.0.7, 1.0.6, 1.0.5, 1.0.4, 1.0.3, 1.0.2, 1.0.1, 1.0.0
Summary
A buffer copy without checking size of input ('Classic Buffer Overflow')
vulnerability [CWE-120] in FortiAnalyzer, FortiManager, FortiOS and FortiProxy
may allow a privileged attacker to execute arbitrary code or command via
crafted CLI `execute restore image` and `execute certificate remote` operations
with the TFTP protocol.
Affected Products
FortiManager version 5.6.0 through 5.6.11
FortiManager version 6.0.0 through 6.0.11
FortiManager version 6.2.0 through 6.2.9
FortiManager version 6.4.0 through 6.4.7
FortiManager version 7.0.0 through 7.0.2
FortiAnalyzer version 5.6.0 through 5.6.11
FortiAnalyzer version 6.0.0 through 6.0.11
FortiAnalyzer version 6.2.0 through 6.2.9
FortiAnalyzer version 6.4.0 through 6.4.7
FortiAnalyzer version 7.0.0 through 7.0.2
FortiOS version 6.0.0 through 6.0.14
FortiOS version 6.2.0 through 6.2.10
FortiOS version 6.4.0 through 6.4.8
FortiOS version 7.0.0 through 7.0.5
FortiProxy version 1.0.0 through 1.0.7
FortiProxy version 1.1.0 through 1.1.6
FortiProxy version 1.2.0 through 1.2.13
FortiProxy version 2.0.0 through 2.0.8
FortiProxy version 7.0.0 through 7.0.3
Solutions
Please upgrade to FortiManager version 7.0.3 or above
Please upgrade to FortiManager version 6.4.8 or above
Please upgrade to FortiAnalyzer version 7.0.3 or above
Please upgrade to FortiAnalyzer version 6.4.8 or above
Please upgrade to FortiProxy version 7.0.4 or above
Please upgrade to FortiProxy version 2.0.9 or above
Please upgrade to FortiOS version 7.2.0 or above
Please upgrade to FortiOS version 7.0.6 or above
Please upgrade to FortiOS version 6.4.9 or above
Please upgrade to FortiOS version 6.2.11 or above
Acknowledgement
Internally discovered and reported by Mattia Fecit of Fortinet Product Security
Team.
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