#VU101963 OS Command Injection in Go programming language - CVE-2023-24531

Vulnerability identifier: #VU101963

Vulnerability risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-24531

CWE-ID: CWE-78

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Go programming language
Universal components / Libraries / Scripting languages

Vendor: Google

Description

The vulnerability allows a local user to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation when handling output of environment variables. A local user can execute arbitrary commands on the system by setting specially crafted values to environment variables and making "go env" print them out.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Go programming language: 1.20 - 1.20.14

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External links
https://go.dev/cl/488375
https://go.dev/cl/493535
https://go.dev/issue/58508
https://groups.google.com/g/golang-dev/c/ixHOFpSbajE/m/8EjlbKVWAwAJ
https://pkg.go.dev/vuln/GO-2024-2962

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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.