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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
8.8HIGH
NVD MITRE
EPSS Score
3.0%
Top 14.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
OpenVAS

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.

No summary for this CVE yet.

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
commercial·US
GitHub Enterprise Server
DevTools & CI
github
DevTools & CI

Exploitability

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

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Execution
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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
News mentions
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