#VU48205 Incorrect default permissions in Salt - CVE-2020-17490

Vulnerability identifier: #VU48205

Vulnerability risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-17490

CWE-ID: CWE-276

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Salt
Web applications / Remote management & hosting panels

Vendor: SaltStack

Description

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

The vulnerability exists due to incorrect default permissions for files and folders that are set by the application within the TLS module. A local user with access to the system can view contents of files and directories or modify them.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Salt: 2014.1 - 2014.7.9, 2015.2 - 2015.8.13, 2016.3 - 2016.11.10, 2017.5 - 2017.7.8, 2018.2 - 2018.11, 2019.2 - 2019.8, 3000 - 3000.3, 3001 - 3001.1, 3002

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External links
https://lists.opensuse.org/opensuse-security-announce/2020-11/msg00029.html
https://docs.saltstack.com/en/latest/topics/releases/index.html#latest-branch-release
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TPOGB2F6XUAIGFDTOCQDNB2VIXFXHWMA/
https://www.saltstack.com/blog/on-november-3-2020-saltstack-publicly-disclosed-three-new-cves/

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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.