CVE-2015-7225 Information

Description

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.

CVSS Vector

CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Reference

http://www.openwall.com/lists/oss-security/2015/06/20/4 http://www.openwall.com/lists/oss-security/2015/09/17/2 http://www.securityfocus.com/bid/76789 https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=798466 https://github.com/tinfoil/devise-two-factor/blob/master/UPGRADING.md https://github.com/tinfoil/devise-two-factor/issues/45issuecomment-139335608

Attack Complexity

HIGH

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

NONE

Base Score

NONE

Base Severity

5.3