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CVE-2021-43177

CVE information

Published

2 years ago

Last Modified

2 years ago

CVSSv2.0 Severity

Low

CVSSv3.1 Severity

Medium

Impact Analysis

Description

As a result of an incomplete fix for CVE-2015-7225, in versions of devise-two-factor prior to 4.0.2 it is possible to reuse a One-Time-Password (OTP) for one (and only one) immediately trailing interval. CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N).

CVSSv2.0 Score

Severity
Low
Base Score
3.5/10
Exploit Score
6.8/10
Access Vector
Network
Access Complexity
Medium
Authentication Required
Single
Impact Score
2.9/10
Confidentiality Impact
Partial
Availability Impact
None
Integrity Impact
None

CVSSv3.1 Score

Severity
Medium
Base Score
5.3/10
Exploit Score
1.6/10
Access Vector
Network
Access Complexity
High
Privileges Required
Low
Impact Score
3.6/10
Confidentiality Impact
High
Availability Impact
None
Integrity Impact
None
Scope
Unchanged
User Interaction
None

Products Affected

CPE Affected Vulnerable Excluding Edit
cpe:2.3:a:tinfoilsecurity:devise-two-factor:*:*:*:*:*:*:*:*
  Yes
- 4.0.2