An Improper Neutralization of Input During Web Page Generation vulnerability was identified in GitHub Enterprise Server that allowed attacker controlled HTML to be rendered by the Filter component (search) across GitHub that could be used to exfiltrate sensitive information. An attacker would require permissions to create or modify the names of milestones, issues, pull requests, or similar entities that are rendered in the vulnerable filter/search components. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.20 and was fixed in versions 3.19.1, and 3.18.2, 3.17.8, 3.16.11, 3.15.15, and 3.14.20.
This vulnerability was reported via the GitHub Bug Bounty program.
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
Passive
Minimal interaction
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 6
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Github Enterprise_Server
cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*
|
3.14.0
|
3.14.20
|
|
Github Enterprise_Server
cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*
|
3.15.0
|
3.15.15
|
|
Github Enterprise_Server
cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*
|
3.16.0
|
3.16.11
|
|
Github Enterprise_Server
cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*
|
3.17.0
|
3.17.8
|
|
Github Enterprise_Server
cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*
|
3.18.0
|
3.18.2
|
|
Github Enterprise_Server
cpe:2.3:a:github:enterprise_server:3.19.0:*:*:*:*:*:*:*
|
— | — |
References 6
https://docs.github.com/en/enterprise-server@3.14/admin/release-notes#3.14.20
product-cna@github.com
https://docs.github.com/en/enterprise-server@3.15/admin/release-notes#3.15.15
product-cna@github.com
https://docs.github.com/en/enterprise-server@3.16/admin/release-notes#3.16.11
product-cna@github.com
https://docs.github.com/en/enterprise-server@3.17/admin/release-notes#3.17.8
product-cna@github.com
https://docs.github.com/en/enterprise-server@3.18/admin/release-notes#3.18.2
product-cna@github.com
https://docs.github.com/en/enterprise-server@3.19/admin/release-notes#3.19.1
product-cna@github.com