Information disclosure in go-gh

1) Protection Mechanism Failure

EUVDB-ID: #VU106028

Risk: Medium

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2024-53859

CWE-ID: CWE-693 - Protection Mechanism Failure

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to GitHub host security boundary in auth.TokenForHost. A remote attacker can disclosure of authentication tokens intended for GitHub hosts to non-GitHub hosts when within a codespace.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

go-gh: 0.0.1 - 2.11.0

CPE2.3

• cpe:2.3:a:cli:go-gh:0.0.1:*:*:*:*:*:*:*
• cpe:2.3:a:cli:go-gh:0.0.2:*:*:*:*:*:*:*
• cpe:2.3:a:cli:go-gh:0.0.3:*:*:*:*:*:*:*

External links

https://docs.github.com/en/apps/using-github-apps/reviewing-and-revoking-authorization-of-github-apps#reviewing-your-authorized-github-apps
https://docs.github.com/en/authentication/keeping-your-account-and-data-secure/reviewing-your-security-log
https://docs.github.com/en/enterprise-cloud@latest/admin/monitoring-activity-in-your-enterprise/reviewing-audit-logs-for-your-enterprise/identifying-audit-log-events-performed-by-an-access-token
https://docs.github.com/en/enterprise-cloud@latest/authentication/keeping-your-account-and-data-secure/managing-your-personal-access-tokens
https://github.com/cli/go-gh/blob/71770357e0cb12867d3e3e288854c0aa09d440b7/pkg/auth/auth.go#L73-L77
https://github.com/cli/go-gh/security/advisories/GHSA-55v3-xh23-96gh

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.