CVE-2020-10517

Improper access control in GitHub Enterprise Server leading to the enumeration of private repository names

Severity Score

4.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An improper access control vulnerability was identified in GitHub Enterprise Server that allowed authenticated users of the instance to determine the names of unauthorized private repositories given their numerical IDs. This vulnerability did not allow unauthorized access to any repository content besides the name. This vulnerability affected all versions of GitHub Enterprise Server prior to 2.22 and was fixed in versions 2.21.6, 2.20.15, and 2.19.21. This vulnerability was reported via the GitHub Bug Bounty program.

Se identificó una vulnerabilidad de control de acceso inapropiado en GitHub Enterprise Server que permitió a usuarios autenticados de la instancia determinar los nombres de los repositorios privados no autorizados dados sus ID numéricos. Esta vulnerabilidad no permitía el acceso no autorizado a ningún contenido del repositorio además del nombre. Esta vulnerabilidad afectó a todas las versiones de GitHub Enterprise Server anteriores a la 2.22 y se corrigió en las versiones 2.21.6, 2.20.15 y 2.19.21. Esta vulnerabilidad se reportó por medio del programa GitHub Bug Bounty

*Credits: William Bowling

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-03-12 CVE Reserved
2020-08-27 CVE Published
2023-03-08 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-285: Improper Authorization

CAPEC

References (3)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://enterprise.github.com/releases/2.19.21/notes	2021-10-07
https://enterprise.github.com/releases/2.20.15/notes	2021-10-07
https://enterprise.github.com/releases/2.21.6/notes	2021-10-07

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Github Search vendor "Github"		Github Search vendor "Github" for product "Github"				< 2.19.21 Search vendor "Github" for product "Github" and version " < 2.19.21"		enterprise		Affected
Github Search vendor "Github"		Github Search vendor "Github" for product "Github"				>= 2.20.0 < 2.20.15 Search vendor "Github" for product "Github" and version " >= 2.20.0 < 2.20.15"		enterprise		Affected
Github Search vendor "Github"		Github Search vendor "Github" for product "Github"				>= 2.21.0 < 2.21.6 Search vendor "Github" for product "Github" and version " >= 2.21.0 < 2.21.6"		enterprise		Affected