Multiple vulnerabilities in NX-OS Firmware

Published: 2024-03-29

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-0466 CVE-2023-0465
CWE-ID	CWE-254 CWE-347
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Cisco NX-OS Operating systems & Components / Operating system
Vendor	Cisco Systems, Inc

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Security features bypass

EUVDB-ID: #VU74149

Risk: Low

CVSSv3.1: 4.2 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-0466

CWE-ID: CWE-254 - Security Features

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to an error within the X509_VERIFY_PARAM_add0_policy() function, which does not perform the certificate policy check despite being implicitly enabled. A remote attacker can bypass expected security restrictions and perform MitM attack.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Cisco NX-OS: before 9.4(1a)

External links

http://www.ibm.com/support/pages/node/7145465

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.

2) Improper Verification of Cryptographic Signature

EUVDB-ID: #VU74148