PT-2021-14404 · Unknown+2 · Carrierwave+2

Published 2021-02-08 · Updated 2025-05-07 · CVE-2021-21305

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: CarrierWave versions prior to 1.3.2 CarrierWave versions prior to 2.1.1

Description: The issue concerns a code injection vulnerability in the #manipulate! method, which inappropriately evaluates the content of mutation options :read and :write, allowing attackers to craft a string that can be executed as Ruby code. If an application developer supplies untrusted inputs to the option, it will lead to remote code execution (RCE).

Recommendations: For versions prior to 1.3.2, upgrade to version 1.3.2. For versions prior to 2.1.1, upgrade to version 2.1.1. As a temporary workaround, consider stopping the supply of untrusted input to the #manipulate! method's mutation option.

Exploit

Fix

RCE

Code Injection

Special Elements Injection

Weakness Enumeration

CWE-94

CWE-74

Related Identifiers

CVE-2021-21305

GHSA-CF3W-G86H-35X4

USN-7497-1

Affected Products

Carrierwave

Linuxmint

Ubuntu

References · 19

• 🔥 https://github.com/carrierwaveuploader/carrierwave/security/advisories/GHSA-cf3w-g86h-35x4 · Exploit
• 🔥 https://github.com/rubysec/ruby-advisory-db/blob/master/gems/carrierwave/CVE-2021-21305.yml · Exploit
• https://github.com/carrierwaveuploader/carrierwave/commit/387116f5c72efa42bc3938d946b4c8d2f22181b7 · Patch
• https://ubuntu.com/security/CVE-2023-49090 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2021-21305 · Vendor Advisory
• https://ubuntu.com/security/notices/USN-7497-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2021-21305 · Vendor Advisory
• https://ubuntu.com/security/CVE-2021-21305 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2021-21305 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2021-21305 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-21305 · Security Note
• https://osv.dev/vulnerability/GHSA-cf3w-g86h-35x4 · Vendor Advisory
• https://osv.dev/vulnerability/USN-7497-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-21305 · Vendor Advisory
• https://github.com/carrierwaveuploader/carrierwave/blob/master/CHANGELOG.md#132---2021-02-08 · Note