Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2012-2122

Improper Authentication

Published: Jun 26, 2012 | Modified: Apr 11, 2025
CVSS 3.x
N/A
Source:
NVD
CVSS 2.x
5.1 MEDIUM
AV:N/AC:H/Au:N/C:P/I:P/A:P
RedHat/V2
7.5 IMPORTANT
AV:N/AC:L/Au:N/C:P/I:P/A:P
RedHat/V3
Ubuntu
HIGH
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2012-2122
CWEhttps://cwe.mitre.org/data/definitions/287.html

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.

Weakness

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

Affected Software

NameVendorStart VersionEnd Version
MysqlOracle5.1.51 (including)5.1.51 (including)
MysqlOracle5.1.52 (including)5.1.52 (including)
MysqlOracle5.1.52-sp1 (including)5.1.52-sp1 (including)
MysqlOracle5.1.53 (including)5.1.53 (including)
MysqlOracle5.1.54 (including)5.1.54 (including)
MysqlOracle5.1.55 (including)5.1.55 (including)
MysqlOracle5.1.56 (including)5.1.56 (including)
MysqlOracle5.1.57 (including)5.1.57 (including)
MysqlOracle5.1.58 (including)5.1.58 (including)
MysqlOracle5.1.59 (including)5.1.59 (including)
MysqlOracle5.1.60 (including)5.1.60 (including)
MysqlOracle5.1.61 (including)5.1.61 (including)
Red Hat Enterprise Linux 6RedHatmysql-0:5.1.66-1.el6_3*
Mysql-5.1Ubuntunatty*
Mysql-5.1Ubuntuoneiric*
Mysql-5.1Ubuntuupstream*
Mysql-5.5Ubuntudevel*
Mysql-5.5Ubuntuprecise*
Mysql-5.5Ubuntuupstream*
Mysql-cluster-7.0Ubuntulucid*
Mysql-cluster-7.0Ubuntunatty*
Mysql-cluster-7.0Ubuntuoneiric*
Mysql-dfsg-5.0Ubuntuhardy*
Mysql-dfsg-5.1Ubuntulucid*
Mysql-dfsg-5.1Ubuntuupstream*

Potential Mitigations

References

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