Devise-Two-Factor up to 5.x Multi-Factor Authentication Code entropy

CVSS Meta Temp Score
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CTI Interest Score
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4.5$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Devise-Two-Factor up to 5.x. This affects an unknown part of the component Multi-Factor Authentication Code Handler. Performing a manipulation results in entropy. This vulnerability is known as CVE-2024-8796. Remote exploitation of the attack is possible. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Devise-Two-Factor up to 5.x. This affects an unknown code of the component Multi-Factor Authentication Code Handler. The manipulation with an unknown input leads to a entropy vulnerability. CWE is classifying the issue as CWE-331. The product uses an algorithm or scheme that produces insufficient entropy, leaving patterns or clusters of values that are more likely to occur than others. This is going to have an impact on confidentiality. The summary by CVE is:

Under the default configuration, Devise-Two-Factor versions >= 2.2.0 & < 6.0.0 generate TOTP shared secrets that are 120 bits instead of the 128-bit minimum defined by RFC 4226. Using a shared secret shorter than the minimum to generate a multi-factor authentication code could make it easier for an attacker to guess the shared secret and generate valid TOTP codes.

The weakness was published by Mark Adams. The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2024-8796 since 09/13/2024. The exploitability is told to be difficult. It is possible to initiate the attack remotely. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1600.001 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 207993 (Ubuntu 20.04 LTS / 22.04 LTS : Devise-Two-Factor vulnerabilities (USN-7050-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.0.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (207993). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔍
CNA CVSS-BT Score: 🔍
CNA Vector: 🔍

CVSSv3info

VulDB Meta Base Score: 4.6
VulDB Meta Temp Score: 4.5

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CNA Base Score: 5.3
CNA Vector (SNPS): 🔍

CVSSv2info

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

Exploitinginfo

Class: Entropy
CWE: CWE-331 / CWE-330 / CWE-310
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: 207993
Nessus Name: Ubuntu 20.04 LTS / 22.04 LTS : Devise-Two-Factor vulnerabilities (USN-7050-1)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Devise-Two-Factor 6.0.0

Timelineinfo

09/13/2024 🔍
09/17/2024 +4 days 🔍
09/17/2024 +0 days 🔍
10/02/2024 +15 days 🔍

Sourcesinfo

Product: github.com

Advisory: github.com
Researcher: Mark Adams
Status: Confirmed

CVE: CVE-2024-8796 (🔍)
GCVE (CVE): GCVE-0-2024-8796
GCVE (VulDB): GCVE-100-277785

Entryinfo

Created: 09/17/2024 19:59
Updated: 10/02/2024 02:02
Changes: 09/17/2024 19:59 (76), 09/18/2024 15:54 (1), 09/30/2024 16:31 (11), 10/02/2024 02:02 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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