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AUSCERT External Security Bulletin Redistribution
ESB-2023.3894
FortiOS – Existing websocket connection persists after deleting API admin
12 July 2023
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AusCERT Security Bulletin Summary
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Product: FortiOS
Publisher: Fortinet
Operating System: Network Appliance
Resolution: Patch/Upgrade
CVE Names: CVE-2023-28001
Original Bulletin:
https://fortiguard.fortinet.com/psirt/FG-IR-23-028
Comment: CVSS (Max): 4.1 CVE-2023-28001 (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L)
CVSS Source: Fortinet
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:L
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FortiOS – Existing websocket connection persists after deleting API admin
IR Number : FG-IR-23-028
Date : Jul 11, 2023
Component : GUI
Severity : Medium
CVSSv3 Score : 4.1
Impact : Execute unauthorized code or commands
CVE ID : CVE-2023-28001
Affected Products:
FortiOS: 7.2.4, 7.2.3, 7.2.2, 7.2.1, 7.2.0, 7.0.9, 7.0.8, 7.0.7, 7.0.6, 7.0.5,
7.0.4, 7.0.3, 7.0.2, 7.0.12, 7.0.11, 7.0.10, 7.0.1, 7.0.0
Summary
An insufficient session expiration [CWE-613] vulnerability in FortiOS REST API
may allow an attacker to reuse the session of a deleted user, should the
attacker manage to obtain the API token.
Affected Products
FortiOS version 7.2.0 through 7.2.4
FortiOS 7.0 all versions
Solutions
Please upgrade to FortiOS version 7.4.0 or above
Acknowledgement
Internally discovered and reported by Yi Liu of Fortinet Test team.
Timeline
2023-07-01: Initial publication
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