An improper authorization vulnerability was identified in GitHub Enterprise Server that allowed a user with read access to a repository and write access to a project to modify issue and pull request metadata through the project. When adding an item to a project that already existed, column value updates were applied without verifying the actor's repository write permissions. This vulnerability was reported via the GitHub Bug Bounty program and has been fixed in GitHub Enterprise Server versions 3.14.24, 3.15.19, 3.16.15, 3.17.12, 3.18.6 and 3.19.3.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 6
https://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.24
product-cna@github.com
https://docs.github.com/en/enterprise-server@3.15/admin/release-notes#3.15.19
product-cna@github.com
https://docs.github.com/en/enterprise-server@3.16/admin/release-notes#3.16.15
product-cna@github.com
https://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.12
product-cna@github.com
https://docs.github.com/en/enterprise-server@3.18/admin/release-notes#3.18.6
product-cna@github.com
https://docs.github.com/en/enterprise-server@3.19/admin/release-notes#3.19.3
product-cna@github.com