Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2012-2122

Severity CVSS v4.0:
Pending analysis
Type:
CWE-287 Authentication Issues
Publication date:
26/06/2012
Last modified:
11/04/2025

Description

sql/password.c in Oracle MySQL 5.1.x before 5.1.63, 5.5.x before 5.5.24, and 5.6.x before 5.6.6, and MariaDB 5.1.x before 5.1.62, 5.2.x before 5.2.12, 5.3.x before 5.3.6, and 5.5.x before 5.5.23, when running in certain environments with certain implementations of the memcmp function, allows remote attackers to bypass authentication by repeatedly authenticating with the same incorrect password, which eventually causes a token comparison to succeed due to an improperly-checked return value.

Impact

Vector 2.0
AV:N/AC:H/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 5.10 MEDIUM
Vector: AV:N/AC:H/Au:N/C:P/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): High
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
5.10
Severity 2.0
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:oracle:mysql:5.1.51:*:*:*:*:*:*:*
cpe:2.3:a:oracle:mysql:5.1.52:*:*:*:*:*:*:*
cpe:2.3:a:oracle:mysql:5.1.52:sp1:*:*:*:*:*:*
cpe:2.3:a:oracle:mysql:5.1.53:*:*:*:*:*:*:*
cpe:2.3:a:oracle:mysql:5.1.54:*:*:*:*:*:*:*
cpe:2.3:a:oracle:mysql:5.1.55:*:*:*:*:*:*:*
cpe:2.3:a:oracle:mysql:5.1.56:*:*:*:*:*:*:*
cpe:2.3:a:oracle:mysql:5.1.57:*:*:*:*:*:*:*
cpe:2.3:a:oracle:mysql:5.1.58:*:*:*:*:*:*:*
cpe:2.3:a:oracle:mysql:5.1.59:*:*:*:*:*:*:*
cpe:2.3:a:oracle:mysql:5.1.60:*:*:*:*:*:*:*
cpe:2.3:a:oracle:mysql:5.1.61:*:*:*:*:*:*:*
cpe:2.3:a:oracle:mysql:5.5.10:*:*:*:*:*:*:*
cpe:2.3:a:oracle:mysql:5.5.11:*:*:*:*:*:*:*
cpe:2.3:a:oracle:mysql:5.5.12:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools