#VU82890 Incorrect default permissions in Insights Core - CVE-2023-3972

Vulnerability identifier: #VU82890

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-3972

CWE-ID: CWE-276

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Insights Core
Universal components / Libraries / Software for developers

Vendor: Red Hat Inc.

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to unsafe handling of temporary files and directories. Before the insights-client has been registered on the system by root, an unprivileged local user can create the /var/tmp/insights-client directory. After the client is registered by root, the local user can execute arbitrary files with root privileges from the affected directory.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Insights Core: 3.0.28 - 3.2.11

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External links
https://bugzilla.redhat.com/show_bug.cgi?id=2227027

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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