CVE-2013-4177

The Google Authenticator login module 6.x-1.x before 6.x-1.2 and 7.x-1.x before 7.x-1.4 for Drupal does not properly identify user account names, which might allow remote attackers to bypass the two-factor authentication requirement via unspecified vectors.

Published: 2014-05-29 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2013-4177 is rated Moderate Risk (47.2/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 1.35%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2013-4177

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-03-30 1.61% 1.35% -0.26%
2 2025-03-29 1.35% 1.61% +0.26%
3 2025-03-17 — 1.35% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2013-4177

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2013-4177

Affected software / configurations for CVE-2013-4177

Vendor Product Version Raw CPE
google_authenticator_login_project ga_login 6.x-1.0 cpe:2.3:a:google_authenticator_login_project:ga_login:6.x-1.0:alpha1:*:*:*:*:*:*
google_authenticator_login_project ga_login 6.x-1.0 cpe:2.3:a:google_authenticator_login_project:ga_login:6.x-1.0:beta1:*:*:*:*:*:*
google_authenticator_login_project ga_login 6.x-1.0 cpe:2.3:a:google_authenticator_login_project:ga_login:6.x-1.0:beta2:*:*:*:*:*:*
google_authenticator_login_project ga_login 6.x-1.1 cpe:2.3:a:google_authenticator_login_project:ga_login:6.x-1.1:*:*:*:*:*:*:*
google_authenticator_login_project ga_login 6.x-1.x cpe:2.3:a:google_authenticator_login_project:ga_login:6.x-1.x:dev:*:*:*:*:*:*
google_authenticator_login_project ga_login 7.x-1.0 cpe:2.3:a:google_authenticator_login_project:ga_login:7.x-1.0:*:*:*:*:*:*:*
google_authenticator_login_project ga_login 7.x-1.0 cpe:2.3:a:google_authenticator_login_project:ga_login:7.x-1.0:beta1:*:*:*:*:*:*
google_authenticator_login_project ga_login 7.x-1.0 cpe:2.3:a:google_authenticator_login_project:ga_login:7.x-1.0:dev:*:*:*:*:*:*
google_authenticator_login_project ga_login 7.x-1.1 cpe:2.3:a:google_authenticator_login_project:ga_login:7.x-1.1:*:*:*:*:*:*:*
google_authenticator_login_project ga_login 7.x-1.2 cpe:2.3:a:google_authenticator_login_project:ga_login:7.x-1.2:*:*:*:*:*:*:*
google_authenticator_login_project ga_login 7.x-1.3 cpe:2.3:a:google_authenticator_login_project:ga_login:7.x-1.3:*:*:*:*:*:*:*

References for CVE-2013-4177

cvelogic Threat Intelligence