Vulnerability in Tinfoilsecurity Devise-Two-Factor
CVE-2015-7225
Tinfoil Devise-two-factor before 2.0.0 does not strictly follow section 5.2 of RFC 6238 and does not "burn" a successfully validated one-time password (aka OTP), which allows remote or physically proximate attackers with a target user's login credentials to log in as said user by obtaining the OTP through performing a man-in-the-middle attack between the provider and verifier, or shoulder surfing, and replaying the OTP in the current time-step.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.021 (80.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 81st percentile — 80.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.021 · change: +0.003
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/tinfoil/devise-two-factor/blob/master/UPGRADING.md (Third Party Advisory)
- www.openwall.com/lists/oss-security/2015/09/17/2 (mailing-list, Mailing List, VDB Entry)
- www.openwall.com/lists/oss-security/2015/06/20/4 (mailing-list, Mailing List, VDB Entry)
- www.securityfocus.com/bid/76789 (VDB Entry, Third Party Advisory, vdb-entry)
- bugs.debian.org/cgi-bin/bugreport.cgi (Mailing List, Third Party Advisory)
- github.com/tinfoil/devise-two-factor/issues/45 (Third Party Advisory)
Frequently asked questions
- What is CVE-2015-7225?
- CVE-2015-7225 is a medium-severity vulnerability in Tinfoilsecurity Devise-Two-Factor, classified under CWE-254. CVSS score: 5.3/10. Published 2017-09-06.
- How severe is CVE-2015-7225?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2015-7225 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.