#VU59351 Improper access control in spinnaker - CVE-2021-43832

Vulnerability identifier: #VU59351

Vulnerability risk: High

CVSSv4.0: 8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2021-43832

CWE-ID: CWE-284

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
spinnaker
Other software / Other software solutions

Vendor: spinnaker

Description

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

The vulnerability exists due to an incorrect wildcard match for the favorite icon in the API implementation. A remote non-authenticated attacker can send a specially crafted API request to the application, execute a pipeline and access the deployed resources.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

spinnaker: before 1.25.8

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External links
https://github.com/spinnaker/spinnaker/security/advisories/GHSA-9h7c-rfrp-gvgp

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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.