CVE-2021-43177
Improper one time password handling in devise-two-factor
5.3
MEDIUM
CVSS 3.1
EPSS 0.85%
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)
How to fix CVE-2021-43177
To remediate CVE-2021-43177, upgrade the affected package to a fixed version below.
- —no fix listed
- —upgrade to 4.0.2 or later
Is CVE-2021-43177 being exploited?
Low — EPSS is 0.8%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0
- from 0, < 4.0.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N |