title: Improper Authentication in GitHub Enterprise Server leading to Authentication Bypass for Public Repository Data
description: An improper authentication vulnerability was identified in GitHub Enterprise Server that allowed a bypass of Private Mode by using a specially crafted API request. To exploit this vulnerability, an attacker would need network access to the Enterprise Server appliance configured in Private Mode. This vulnerability affected all versions of GitHub Enterprise Server since 3.9 and was fixed in version 3.9.7, 3.10.4, and 3.11.1. This vulnerability was reported via the GitHub Bug Bounty program.
problem types: CWE-287 Improper Authentication
affected:
{
defaultStatus: unaffected
product: Enterprise Server
vendor: GitHub
versions:
lessThan: 3.9.7, status: affected, version: 3.9.0, versionType: semver
lessThan: 3.10.4, status: affected, version: 3.10.0, versionType: semver
lessThan: 3.11.1, status: affected, version: 3.11.0, versionType: semver
}
metrics:
cvssV3_1: [
attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 7.5
baseSeverity: HIGH
confidentialityImpact: HIGH
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
version: 3.1
]
format: CVSS
scenarios: GENERAL