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AUSCERT External Security Bulletin Redistribution
ESB-2022.4405
FortiOS - Flaws over krb keytab encryption scheme
7 September 2022
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AusCERT Security Bulletin Summary
---------------------------------
Product: FortiOS
Publisher: Fortinet
Operating System: Network Appliance
Resolution: Patch/Upgrade
CVE Names: CVE-2022-29053
Original Bulletin:
https://fortiguard.fortinet.com/psirt/FG-IR-22-158
Comment: CVSS (Max): 2.1 CVE-2022-29053 (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N)
CVSS Source: Fortinet
Calculator: https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N
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FortiOS - Flaws over krb keytab encryption scheme
IR Number : FG-IR-22-158
Date : Sep 6, 2022
Severity : Low
CVSSv3 Score : 2.1
Impact : Information disclosure
CVE ID : CVE-2022-29053
Affected Products:
FortiOS: 7.2.0, 7.0.5, 7.0.4, 7.0.3, 7.0.2, 7.0.1, 7.0.0, 6.4.9, 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, 6.2.11, 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
Summary
A missing cryptographic steps vulnerability [CWE-325] in the functions that
encrypt the keytab files in FortiOS may allow an attacker in possession of the
encrypted file to decipher it.
Affected Products
At least
FortiOS version 7.2.0
FortiOS version 7.0.0 through 7.0.5
FortiOS version 6.4.0 through 6.4.9
FortiOS version 6.2.0 through 6.2.11
FortiOS version 6.0.0 through 6.0.14
Solutions
Upgrade to FortiOS version 7.2.1 or above.
Upgrade to FortiOS version 7.0.6 or above.
Acknowledgement
Internally discovered and reported by Theo Leleu of Fortinet Product Security
team.
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