PT-2022-24887 · Unknown · Ghinstallation

Published 2022-12-19 · Updated 2022-12-29 · CVE-2022-39304

Positive Technologies (AI Summary)

CVSS v3.1

5.0

Medium

Base vector

AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:L

Name of the Vulnerable Software and Affected Versions ghinstallation versions 1 through 1 ghinstallation version 2.0.0 is not affected as it contains the fix for the issue.

Description The issue concerns ghinstallation, which provides transport implementing http.RoundTripper for authentication as a GitHub App installation. When the request to refresh an installation token failed in version 1, the HTTP request and response were returned for debugging, containing the bearer JWT for the App. This token, although short-lived with a maximum of 10 minutes, could be returned to clients. There is no information provided about the estimated number of potentially affected devices or real-world incidents where this issue was exploited.

Recommendations For ghinstallation versions 1, update to version 2.0.0 to resolve the issue. As a temporary workaround, consider restricting access to the ghinstallation.Transport to minimize the risk of exploitation until a patch is applied. Avoid exposing errors returned by ghinstallation.Transport to untrusted parties to prevent potential JWT extraction and misuse.

Exploit

Fix

Generation of Error Message Containing Sensitive Information

Weakness Enumeration

CWE-209

Related Identifiers

CVE-2022-39304

GHSA-H4Q8-96P6-JCGR

GO-2022-1178

Affected Products

Ghinstallation

References · 14

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/39xxx/CVE-2022-39304.json · Exploit
• 🔥 https://github.com/bradleyfalzon/ghinstallation/blob/24e56b3fb7669f209134a01eff731d7e2ef72a5c/transport.go#L172-L174 · Exploit
• https://github.com/bradleyfalzon/ghinstallation/security/advisories/GHSA-h4q8-96p6-jcgr · Patch
• https://github.com/bradleyfalzon/ghinstallation/commit/d24f14f8be70d94129d76026e8b0f4f9170c8c3e · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2022-39304 · Security Note
• https://osv.dev/vulnerability/CVE-2022-39304 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-h4q8-96p6-jcgr · Vendor Advisory
• https://osv.dev/vulnerability/GO-2022-1178 · Vendor Advisory
• https://github.com/bradleyfalzon/ghinstallation · Note
• https://t.me/cibsecurity/55008 · Telegram Post
• https://pkg.go.dev/vuln/GO-2022-1178 · Note
• https://securitylab.github.com/advisories/GHSL-2022-061_ghinstallation · Note
• https://docs.github.com/en/developers/apps/building-github-apps/authenticating-with-github-apps#authenticating-as-an-installation · Note
• https://t.me/cvenotify/40268 · Telegram Post