CVE-2012-2122
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...
- Published
- Jun 26, 2012
- Updated
- Aug 6, 2024
- Assigning CNA
- redhat
- Evidence observed
- Jun 12, 2012
Primary CVSS
nvd · CVSS 2.0
AV:N/AC:H/Au:N/C:P/I:P/A:PHigh · next 30 days
- Percentile
- 99.9%
- Model date
- Oct 12, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
- Vulhub vulnerability labs
Declared conditions
- lab image version: vulhub/mysql:5.5.23(mysql/CVE-2012-2122/docker-compose.yml:services.mysql.image)
modules/auxiliary/scanner/mysql/mysql_authbypass_hashdump.rb
Metasploit Framework modulesDeclared conditions
- verification: check_not_declared($.auxiliary_scanner/mysql/mysql_authbypass_hashdump.check)
- MySQL - Authentication BypassTemplate
javascript/cves/2012/CVE-2012-2122.yaml
Nuclei TemplatesDeclared conditions
- verification: dsl($.matchers[*].type)
Responsible use
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