8.8
HIGH
CVE-2020-10518
GitHub Enterprise Server GitHub Pages Remote Code Execution Vulnerability
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 and was fixed in 2.21.6, 2.20.15, and 2.19.21. The underlying issues contributing to this vulnerability were identified both internally and through the GitHub Security Bug Bounty program.

INFO

Published Date :

Aug. 27, 2020, 10:15 p.m.

Last Modified :

Nov. 21, 2024, 4:55 a.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

2.8
Public PoC/Exploit Available at Github

CVE-2020-10518 has a 2 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2020-10518 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Github enterprise_server
2 Github github
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2020-10518.

URL Resource
https://enterprise.github.com/releases/2.19.21/notes Release Notes Vendor Advisory
https://enterprise.github.com/releases/2.20.15/notes Release Notes Vendor Advisory
https://enterprise.github.com/releases/2.21.6/notes Release Notes Vendor Advisory
https://enterprise.github.com/releases/2.19.21/notes Release Notes Vendor Advisory
https://enterprise.github.com/releases/2.20.15/notes Release Notes Vendor Advisory
https://enterprise.github.com/releases/2.21.6/notes Release Notes Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

None

Shell

Updated: 2 years, 11 months ago
0 stars 1 fork 1 watcher
Born at : Jan. 11, 2022, 3:47 p.m. This repo has been linked 3 different CVEs too.

CVE-2021-22192

C

Updated: 4 months, 1 week ago
13 stars 2 fork 2 watcher
Born at : April 22, 2021, 9:35 a.m. This repo has been linked 2 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-10518 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-10518 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://enterprise.github.com/releases/2.19.21/notes
    Added Reference https://enterprise.github.com/releases/2.20.15/notes
    Added Reference https://enterprise.github.com/releases/2.21.6/notes
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Reanalysis by [email protected]

    Dec. 20, 2021

    Action Type Old Value New Value
    Removed CWE NIST CWE-74
    Added CWE NIST NVD-CWE-noinfo
  • Initial Analysis by [email protected]

    Sep. 03, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://enterprise.github.com/releases/2.19.21/notes No Types Assigned https://enterprise.github.com/releases/2.19.21/notes Release Notes, Vendor Advisory
    Changed Reference Type https://enterprise.github.com/releases/2.20.15/notes No Types Assigned https://enterprise.github.com/releases/2.20.15/notes Release Notes, Vendor Advisory
    Changed Reference Type https://enterprise.github.com/releases/2.21.6/notes No Types Assigned https://enterprise.github.com/releases/2.21.6/notes Release Notes, Vendor Advisory
    Added CWE NIST CWE-74
    Added CPE Configuration OR *cpe:2.3:a:github:github:*:*:*:*:enterprise:*:*:* versions up to (excluding) 2.19.21 *cpe:2.3:a:github:github:*:*:*:*:enterprise:*:*:* versions from (including) 2.20.0 up to (excluding) 2.20.15 *cpe:2.3:a:github:github:*:*:*:*:enterprise:*:*:* versions from (including) 2.21.0 up to (excluding) 2.21.6
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-10518 is associated with the following CWEs:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.29 }} 0.00%

score

0.64241

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability