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AUSCERT External Security Bulletin Redistribution
ESB-2021.3911
FortiPortal - XML parser is vulnerable to XXE attacks
16 November 2021
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AusCERT Security Bulletin Summary
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Product: FortiPortal
Publisher: FortiGuard
Operating System: Network Appliance
Impact/Access: Denial of Service -- Existing Account
Access Confidential Data -- Existing Account
Reduced Security -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-36172
Original Bulletin:
https://www.fortiguard.com/psirt/FG-IR-21-104
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FortiPortal - XML parser is vulnerable to XXE attacks
IR Number : FG-IR-21-104
Date : Nov 2, 2021
Risk : 2/5
CVSSv3 Score : 3.8
Impact : Information disclosure
CVE ID : CVE-2021-36172
Affected Products: FortiPortal: 6.0.5, 6.0.4, 6.0.3, 6.0.2, 6.0.1, 6.0.0, 5.3.6, 5.3.5, 5.3.4, 5.3.3, 5.3.2, 5.3.1, 5.3.0, 5.2.6, 5.2.5, 5.2.4, 5.2.3, 5.2.2, 5.2.1, 5.2.0, 5.1.2, 5.1.1, 5.1.0, 5.0.3, 5.0.2, 5.0.1, 5.0.0, 4.2.2, 4.2.1, 4.1.2, 4.1.1, 4.0.4, 4.0.3, 4.0.2, 4.0.1, 4.0.0
Language : English
Portuguese
Summary
An improper restriction of XML external entity reference vulnerability
[CWE-611] in the parser of XML responses of FortiPortal may allow an attacker
who controls the producer of XML reports consumed by FortiPortal to trigger a
denial of service or read arbitrary files from the underlying file system by
means of specifically crafted XML documents.
Affected Products
FortiPortal version 6.0.5 and below.
FortiPortal version 5.3.6 and below.
FortiPortal version 5.2.6 and below.
FortiPortal version 5.1.2 and below.
FortiPortal version 5.0.3 and below.
FortiPortal version 4.2.4 and below.
FortiPortal version 4.1.2 and below.
FortiPortal version 4.0.4 and below.
Solutions
Upgrade to FortiPortal version 6.0.6 or above.
Upgrade to FortiPortal version 5.3.7 or above.
Upgrade to FortiPortal version 5.2.7 or above.
Acknowledgement
Internally discovered and reported by Giuseppe Cocomazzi of Fortinet Product
Security team.
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