CVE-2020-8130Public exploit

Command execution via pipe-prefixed FileList filenames

Published Feb 24, 2020 · Updated Aug 4, 2024

OS command injection in Ruby Rake before 12.3.3 allows local users to execute arbitrary commands through crafted FileList filenames. Rake::FileList#egrep passes each filename to Kernel.open, which treats a leading pipe as a command and executes it instead of opening a file. Exploitation requires local high-privilege control of a processed filename, and commands run with the privileges of the Rake process.

CVSS severity6.4
Medium
EPSS probability1.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

OS command injection in Ruby Rake before 12.3.3 allows local users to execute arbitrary commands through crafted FileList filenames. Rake::FileList#egrep passes each filename to Kernel.open, which treats a leading pipe as a command and executes it instead of opening a file. Exploitation requires local high-privilege control of a processed filename, and commands run with the privileges of the Rake process.

The record

CVE
CVE-2020-8130
Published
Feb 24, 2020
Updated
Aug 4, 2024
Vendor
Ruby
Product
Rake
Classifications
CWE-78, T1059
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Feb 24, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=Fixed in Rake 12.3.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Ruby · Rakeversion=Fixed in Rake 12.3.3

Published CVSS scores

6.4NIST NVDCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
6.9NIST NVDAV:L/AC:M/Au:N/C:C/I:C/A:C

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo