Improper verification of cryptographic signature in IBM CICS TX Advanced



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-0465
CWE-ID CWE-347
Exploitation vector Network
Public exploit N/A
Vulnerable software
 IBM CICS TX Advanced
Universal components / Libraries / Software for developers

Vendor IBM Corporation

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Improper Verification of Cryptographic Signature

EUVDB-ID: #VU74148

Risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-0465

CWE-ID: CWE-347 - Improper Verification of Cryptographic Signature

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to an error when validating certificate policies in leaf certificates. A remote attacker that controls a malicious CA server can issue a certificate that will be validated by the application.

Mitigation

Install update from vendor's website.

Vulnerable software versions

IBM CICS TX Advanced: before 10.1.0.0 ifix20

CPE2.3 External links

https://www.ibm.com/support/pages/node/7014675


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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