VMware Tanzu Isolation Segment update for linux-pam



Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-28321
CWE-ID CWE-863
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Platform Automation Toolkit
Other software / Other software solutions

Vendor VMware, Inc

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Incorrect authorization

EUVDB-ID: #VU71525

Risk: Medium

CVSSv4.0: 5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-28321

CWE-ID: CWE-863 - Incorrect Authorization

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authorization process.

The vulnerability exists due to an error within the pam_access.so module in Linux-PAM package, which does not correctly restrict login if a user tries to connect from an IP address that is not resolvable via DNS.  A remote attacker can bypass authorization process and login to the system via SSH from IP addresses that were not allowed to connect from.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Platform Automation Toolkit: before 4.4.31

CPE2.3 External links

https://tanzu.vmware.com/security/usn-5825-1
https://tanzu.vmware.com/security/usn-5825-2


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user 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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