CVE-2020-10516 : An improper access control vulnerability was identified in the GitHub Enterprise Server API that allowed an organization

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.

Published 2020-06-03 14:15:12

Updated 2020-06-05 14:38:03

Source GitHub, Inc. (Products Only)

View at NVD, CVE.org

Vulnerability category: BypassGain privilege

Exploit prediction scoring system (EPSS) score for CVE-2020-10516

Probability of exploitation activity in the next 30 days: 0.23%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 61 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2020-10516

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.5	HIGH	AV:N/AC:L/Au:N/C:P/I:P/A:P	10.0	6.4	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
9.8	CRITICAL	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	3.9	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE ids for CVE-2020-10516

CWE-285 Improper Authorization

The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.

Assigned by: product-cna@github.com (Secondary)
CWE-552 Files or Directories Accessible to External Parties

The product makes files or directories accessible to unauthorized actors, even though they should not be.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2020-10516

https://enterprise.github.com/releases/2.20.9/notes

GitHub Enterprise - The best way to build and ship software
Release Notes;Third Party Advisory
https://enterprise.github.com/releases/2.19.15/notes

GitHub Enterprise - The best way to build and ship software
Release Notes;Third Party Advisory
https://enterprise.github.com/releases/2.18.20/notes

GitHub Enterprise - The best way to build and ship software
Release Notes;Third Party Advisory

Products affected by CVE-2020-10516

Github » Github » Enterprise Edition
Versions from including (>=) 2.18.0 and before (<) 2.18.20
cpe:2.3:a:github:github:*:*:*:*:enterprise:*:*:*
Matching versions
Github » Github » Enterprise Edition
Versions from including (>=) 2.19.0 and before (<) 2.19.15
cpe:2.3:a:github:github:*:*:*:*:enterprise:*:*:*
Matching versions
Github » Github » Enterprise Edition
Versions from including (>=) 2.20.0 and before (<) 2.20.9
cpe:2.3:a:github:github:*:*:*:*:enterprise:*:*:*
Matching versions

Vulnerability Details : CVE-2020-10516

Exploit prediction scoring system (EPSS) score for CVE-2020-10516

CVSS scores for CVE-2020-10516

CWE ids for CVE-2020-10516

References for CVE-2020-10516

Products affected by CVE-2020-10516