CarrierWave up to 1.3.1/2.1.0 on Ruby manipulate code injection

CVSS Meta Temp Score
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in CarrierWave up to 1.3.1/2.1.0 on Ruby. Affected is the function manipulate. This manipulation causes code injection. The identification of this vulnerability is CVE-2021-21305. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in CarrierWave up to 1.3.1/2.1.0 on Ruby (Ruby Gem). Affected by this vulnerability is the function manipulate. The manipulation with an unknown input leads to a code injection vulnerability. The CWE definition for the vulnerability is CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was shared 02/09/2021. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2021-21305. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1059 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 235428 (Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS : CarrierWave vulnerabilities (USN-7497-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 1.3.2 or 2.1.1 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (235428). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Code injection
CWE: CWE-94 / CWE-74 / CWE-707
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 235428
Nessus Name: Ubuntu 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS : CarrierWave vulnerabilities (USN-7497-1)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: CarrierWave 1.3.2/2.1.1
Patch: github.com

Timelineinfo

12/22/2020 🔍
02/09/2021 +49 days 🔍
02/09/2021 +0 days 🔍
05/07/2025 +1548 days 🔍

Sourcesinfo

Advisory: github.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-21305 (🔍)
GCVE (CVE): GCVE-0-2021-21305
GCVE (VulDB): GCVE-100-169399

Entryinfo

Created: 02/09/2021 09:00
Updated: 05/07/2025 21:05
Changes: 02/09/2021 09:00 (41), 02/25/2021 14:45 (6), 02/25/2021 14:52 (19), 05/07/2025 21:05 (17)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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