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AUSCERT External Security Bulletin Redistribution
ESB-2023.3895
FortiExtender – Path Traversal vulnerability
12 July 2023
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AusCERT Security Bulletin Summary
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Product: FortiExtender
Publisher: Fortinet
Operating System: Network Appliance
Resolution: Patch/Upgrade
CVE Names: CVE-2022-23447
Original Bulletin:
https://fortiguard.fortinet.com/psirt/FG-IR-22-039
Comment: CVSS (Max): 7.3 CVE-2022-23447 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N)
CVSS Source: Fortinet
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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FortiExtender – Path Traversal vulnerability
IR Number : FG-IR-22-039
Date : Jul 11, 2023
Severity : High
CVSSv3 Score : 7.3
Impact : Information disclosure
CVE ID : CVE-2022-23447
Affected Products:
FortiExtender: 7.0.3, 7.0.2, 7.0.1, 7.0.0, 5.3.2, 4.2.4, 4.2.3, 4.2.2, 4.2.1,
4.2.0, 4.1.8, 4.1.7, 4.1.6, 4.1.5, 4.1.4, 4.1.3, 4.1.2, 4.1.1,
4.0.2, 4.0.1, 4.0.0, 3.3.2, 3.3.1, 3.3.0, 3.2.3, 3.2.2, 3.2.1
Summary
An improper limitation of a pathname to a restricted directory (‘Path
Traversal’) vulnerability [CWE-22] in FortiExtender management interface may
allow an unauthenticated and remote attacker to retrieve arbitrary files from
the underlying filesystem via specially crafted web requests.
Affected Products
FortiExtender version 7.0.0 through 7.0.3
FortiExtender version 4.2.0 through 4.2.4
FortiExtender version 4.1.1 through 4.1.8
FortiExtender version 4.0.0 through 4.0.2
FortiExtender version 3.3.0 through 3.3.2
FortiExtender version 3.2.1 through 3.2.3
FortiExtender 5.3 all versions
Solutions
Please upgrade to FortiExtender version 7.2.0 or above
Please upgrade to FortiExtender version 7.0.4 or above
Please upgrade to FortiExtender version 4.2.5 or above
Please upgrade to FortiExtender version 4.1.9 or above
Please upgrade to FortiExtender version 4.0.3 or above
Please upgrade to FortiExtender version 3.3.3 or above
Please upgrade to FortiExtender version 3.2.4 or above
Acknowledgement
Fortinet is pleased to thank Bicking Thomas from TUV Rheinland i-sec GmbH for
reporting this vulnerability under responsible disclosure.
Timeline
2023-07-07: Initial publication
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