Improper authorization fallback allows scoped user-to-server token installation escape in GitHub Enterprise Server
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| GitHub | Enterprise Server | unaffected |
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Configuration 1 [-]
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No data.
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| Github | Enterprise Server |
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No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.290% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:* cpe:2.3:a:github:enterprise_server:3.20.0:*:*:*:*:*:*:* |
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| Metrics |
cvssV3_1
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| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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| Type | Values Removed | Values Added |
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| First Time appeared |
Github
Github enterprise Server |
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| Vendors & Products |
Github
Github enterprise Server |
| Type | Values Removed | Values Added |
|---|---|---|
| Description | An improper authorization vulnerability in scoped user-to-server (ghu_) token authorization in GitHub Enterprise Server allows an authenticated attacker to access private repositories outside the intended installation scope, which can include write operations, via an authorization fallback that treated a revoked/deleted installation as a global installation context, which could be chained with token revocation timing and SSH push attribution to obtain and reuse a victim-scoped token. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.21 and was fixed in versions 3.20.1, 3.19.5, 3.18.8, 3.17.14, 3.16.17, 3.15.21, and 3.14.26. This vulnerability was reported via the GitHub Bug Bounty program. | |
| Title | Improper authorization fallback allows scoped user-to-server token installation escape in GitHub Enterprise Server | |
| Weaknesses | CWE-639 | |
| References |
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| Metrics |
cvssV4_0
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