CVE-2020-10516

Improper access control in GitHub Enterprise Server leading to privilege escalation of organization member

Severity Score

9.8

*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 the GitHub Enterprise Server API that allowed an organization member to escalate permissions and gain access to unauthorized repositories within an organization. This vulnerability affected all versions of GitHub Enterprise Server prior to 2.21 and was fixed in 2.20.9, 2.19.15, and 2.18.20. This vulnerability was reported via the GitHub Bug Bounty program.

Se identificó una vulnerabilidad de control de acceso inapropiado en la API de GitHub Enterprise Server, que permitió a un miembro de la organización escalar permisos y conseguir acceso a repositorios no autorizados dentro de una organización. Esta vulnerabilidad afectó a todas las versiones de GitHub Enterprise Server anteriores a 2.21 y fue corregida en las versiones 2.20.9, 2.19.15 y 2.18.20. Esta vulnerabilidad fue reportada por medio del programa GitHub Bug Bounty.

*Credits: Vaibhav Singh

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-03-12 CVE Reserved
2020-06-03 CVE Published
2024-04-07 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-285: Improper Authorization
CWE-552: Files or Directories Accessible to External Parties

CAPEC

References (3)

URL	Tag	Source
https://enterprise.github.com/releases/2.18.20/notes	Release Notes
https://enterprise.github.com/releases/2.19.15/notes	Release Notes
https://enterprise.github.com/releases/2.20.9/notes	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"		Github Search vendor "Github" for product "Github"				>= 2.18.0 < 2.18.20 Search vendor "Github" for product "Github" and version " >= 2.18.0 < 2.18.20"		enterprise		Affected
Github Search vendor "Github"		Github Search vendor "Github" for product "Github"				>= 2.19.0 < 2.19.15 Search vendor "Github" for product "Github" and version " >= 2.19.0 < 2.19.15"		enterprise		Affected
Github Search vendor "Github"		Github Search vendor "Github" for product "Github"				>= 2.20.0 < 2.20.9 Search vendor "Github" for product "Github" and version " >= 2.20.0 < 2.20.9"		enterprise		Affected