#VU61022 Authorization bypass through user-controlled key in Rundeck - CVE-2021-41111

Vulnerability identifier: #VU61022

Vulnerability risk: Medium

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

CVE-ID: CVE-2021-41111

CWE-ID: CWE-639

Exploitation vector: Network

Exploit availability: No

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

Vendor: Rundeck

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to improper access control in Webhook data and tokens. A remote user can gain unauthorized access to sensitive information on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Rundeck: 3.3.0 rc1 - 3.3.14, 3.4.0 alpha1 - 3.4.4

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External links
https://github.com/rundeck/rundeck/security/advisories/GHSA-mfqj-f22m-gv8j
https://github.com/rundeck/rundeck/commit/a3bdc06a0731da902593732022a5b9d2b4facec5

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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.