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CVE-2020-10519

Unsafe configuration options in GitHub Pages leading to remote code execution on GitHub Enterprise Server

Published: Mar 3, 2021Updated: Nov 21, 2024 Sources: CVE List NVDCWE-77
NVD MITRE
8.8CVSSHIGH
EPSS Score
3.0%
Top 14.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

Description

A remote code execution vulnerability was identified in GitHub Enterprise Server that could be exploited when building a GitHub Pages site. User-controlled configuration of the underlying parsers used by GitHub Pages were not sufficiently restricted and made it possible to execute commands on the GitHub Enterprise Server instance. To exploit this vulnerability, an attacker would need permission to create and build a GitHub Pages site on the GitHub Enterprise Server instance. This vulnerability affected all versions of GitHub Enterprise Server prior to 2.22.7 and was fixed in 2.22.7, 2.21.15, and 2.20.24. The underlying issues contributing to this vulnerability were identified through the GitHub Security Bug Bounty program.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
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Weaknesses

CWE-77NVD-CWE-noinfo

Affected Products

GitHub Enterprise ServerGitHubDevTools & CI
githubgithubDevTools & CI
githubcommercialUSDevTools & CIaka github

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

1 technique
Execution
View detailed technique mapping

References

https://docs.github.com/en/enterprise-server%402.20/admin/release-notes#2.20.24
docs.github.com
https://docs.github.com/en/enterprise-server%402.21/admin/release-notes#2.21.15
docs.github.com
https://docs.github.com/en/enterprise-server%402.22/admin/release-notes#2.22.7
docs.github.com

Timeline

Published
Mar 3, 2021
Last Updated
Nov 21, 2024

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