Vulnerability identifier: #VU46672

Vulnerability risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-12693

CWE-ID: CWE-288

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Slurm
Server applications / Remote management servers, RDP, SSH

Vendor: SchedMD

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to a race condition during authentication process, if Message Aggregation is enabled. A remote non-authenticated attacker can send specially crafted request to the application, bypass authentication process and execute arbitrary code on the system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Slurm: 20.02.0.1 - 20.02.2.1, 19.05.0.0 - 19.05.6.1

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External links
http://lists.opensuse.org/opensuse-security-announce/2020-09/msg00035.html
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KNL5E5SK4WP6M3DKU4IKW2NPQD2XTZ4Y/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T3RGQB3EWDLOLTSPAJPPWZEPQK3O3AUH/
http://lists.schedmd.com/pipermail/slurm-announce/2020/000036.html
http://www.schedmd.com/news.php?id=236

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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.