Vulnerability Details : CVE-2020-26222
Potential exploit
Dependabot is a set of packages for automated dependency management for Ruby, JavaScript, Python, PHP, Elixir, Rust, Java, .NET, Elm and Go. In Dependabot-Core from version 0.119.0.beta1 before version 0.125.1, there is a remote code execution vulnerability in dependabot-common and dependabot-go_modules when a source branch name contains malicious injectable bash code. For example, if Dependabot is configured to use the following source branch name: "/$({curl,127.0.0.1})", Dependabot will make a HTTP request to the following URL: 127.0.0.1 when cloning the source repository. The fix was applied to version 0.125.1. As a workaround, one can escape the branch name prior to passing it to the Dependabot::Source class.
Vulnerability category: Execute code
Products affected by CVE-2020-26222
- cpe:2.3:a:dependabot_project:dependabot:*:*:*:*:*:*:*:*
- cpe:2.3:a:dependabot_project:dependabot:0.119.0:-:*:*:*:*:*:*
- cpe:2.3:a:dependabot_project:dependabot:0.119.0:beta1:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-26222
0.62%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 68 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-26222
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.5
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:P/A:P |
8.0
|
6.4
|
NIST | |
|
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST | |
|
8.7
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N |
2.3
|
5.8
|
GitHub, Inc. |
CWE ids for CVE-2020-26222
-
The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.Assigned by: security-advisories@github.com (Primary)
References for CVE-2020-26222
-
https://github.com/dependabot/dependabot-core/commit/e089116abbe284425b976f7920e502b8e83a61b5
Merge pull request #2727 from dependabot/v0.125.1-release-notes · dependabot/dependabot-core@e089116 · GitHubPatch;Third Party Advisory
-
https://github.com/dependabot/dependabot-core/pull/2727
v0.125.1 by feelepxyz · Pull Request #2727 · dependabot/dependabot-core · GitHubPatch;Third Party Advisory
-
https://github.com/dependabot/dependabot-core/security/advisories/GHSA-23f7-99jx-m54r
Remote code execution in dependabot-core branch names when cloning · Advisory · dependabot/dependabot-core · GitHubExploit;Third Party Advisory
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