#VU55283 Improper access control in Rancher - CVE-2021-25320

Vulnerability identifier: #VU55283

Vulnerability risk: Medium

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-25320

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Rancher
Web applications / Modules and components for CMS

Vendor: rancher

Description

The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.

The vulnerability exists due to improper access restrictions. A remote authenticated attacker can make request to cloud providers by creating requests with the cloud-credential ID.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Rancher: 2.4.0 - 2.5.8

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External links
https://bugzilla.suse.com/show_bug.cgi?id=1185514

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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.