Vulnerability identifier: #VU31793

Vulnerability risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-19724

CWE-ID: CWE-276

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Singularity
Universal components / Libraries / Libraries used by multiple products

Vendor: Singularity

Description

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

The vulnerability exists due to insecure permissions for files and folders that are set by the application on $HOME/.singularity file when it is newly created by Singularity. 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

Singularity: 3.3.0 - 3.5.1

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External links
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00025.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00059.html
http://github.com/sylabs/singularity/releases/tag/v3.5.2

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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.