Vulnerability · Published Nov 13, 2020 · Assigned by GitHub_M
CVE-2020-26222Remote code execution in dependabot-core
High 8.7
In plain English
A high-severity injection in dependabot-core from dependabot. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 3.1% (higher than 88% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| RubyGems | dependabot-common | 0.125.1 | GHSA-23f7-99jx-m54r |
| RubyGems | dependabot-omnibus | 0.125.1 | GHSA-23f7-99jx-m54r |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| dependabot | dependabot-core | < 0.125.1 |
Weakness: CWE-74 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N