Overview
- Description
- 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.
- Source
- disclosure@synopsys.com
- NVD status
- Analyzed
Risk scores
CVSS 4.0
- Type
- Secondary
- Base score
- 6
- Impact score
- -
- Exploitability score
- -
- Vector string
- CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- Severity
- MEDIUM
CVSS 3.1
- Type
- Primary
- Base score
- 5.3
- Impact score
- 3.6
- Exploitability score
- 1.6
- Vector string
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
- Severity
- MEDIUM
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:tinfoilsecurity:devise-two-factor:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "84888909-8B85-45B8-B57C-A63ABB739A8F",
"versionEndExcluding": "6.0.0",
"versionStartIncluding": "4.0.0"
},
{
"criteria": "cpe:2.3:a:tinfoilsecurity:devise-two-factor:1.0.0:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6A7C7CE8-1386-4FF1-81AC-8A9A251122BF"
}
],
"operator": "OR"
}
]
}
]