CVE-2023-23763

Information disclosure in GitHub Enterprise Server leading to private repository leakage

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An authorization/sensitive information disclosure vulnerability was identified in GitHub Enterprise Server that allowed a fork to retain read access to an upstream repository after its visibility was changed to private. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.10.0 and was fixed in versions 3.9.4, 3.8.9, 3.7.16 and 3.6.18. This vulnerability was reported via the GitHub Bug Bounty program.

Se ha identificado una vulnerabilidad de autorización/divulgación de información sensible en GitHub Enterprise Server que permitía a un fork conservar el acceso de lectura a un repositorio upstream después de cambiar su visibilidad a privada. Esta vulnerabilidad afectaba a todas las versiones de GitHub Enterprise Server anteriores a la 3.10.0 y se solucionó en las versiones 3.9.4, 3.8.9, 3.7.16 y 3.6.18. Esta vulnerabilidad fue reportada a través del programa GitHub Bug Bounty.

*Credits: inspector-ambitious

CVSS Scores

NISTv3.1 5.3

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2023-01-17 CVE Reserved
2023-09-01 CVE Published
2024-08-02 CVE Updated
2024-09-07 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
CWE-862: Missing Authorization

CAPEC

CAPEC-116: Excavation

References (4)

URL	Tag	Source
https://docs.github.com/en/enterprise-server@3.6/admin/release-notes#3.6.18-security-fixes	Release Notes
https://docs.github.com/en/enterprise-server@3.7/admin/release-notes#3.7.16-security-fixes	Release Notes
https://docs.github.com/en/enterprise-server@3.8/admin/release-notes#3.8.9-security-fixes	Release Notes
https://docs.github.com/en/enterprise-server@3.9/admin/release-notes#3.9.4-security-fixes	Release Notes

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Github Search vendor "Github"		Enterprise Server Search vendor "Github" for product "Enterprise Server"				>= 3.6.0 < 3.6.18 Search vendor "Github" for product "Enterprise Server" and version " >= 3.6.0 < 3.6.18"		-		Affected
Github Search vendor "Github"		Enterprise Server Search vendor "Github" for product "Enterprise Server"				>= 3.7.0 < 3.7.16 Search vendor "Github" for product "Enterprise Server" and version " >= 3.7.0 < 3.7.16"		-		Affected
Github Search vendor "Github"		Enterprise Server Search vendor "Github" for product "Enterprise Server"				>= 3.8.0 < 3.8.9 Search vendor "Github" for product "Enterprise Server" and version " >= 3.8.0 < 3.8.9"		-		Affected
Github Search vendor "Github"		Enterprise Server Search vendor "Github" for product "Enterprise Server"				>= 3.9.0 < 3.9.4 Search vendor "Github" for product "Enterprise Server" and version " >= 3.9.0 < 3.9.4"		-		Affected