Improper Authentication in Oracle MySQL Server
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2012-2122 |
| CWE-ID | CWE-287 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #1 is available. |
| Vulnerable software Subscribe |
MySQL Server Server applications / Database software |
| Vendor | Oracle |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Improper Authentication
EUVDB-ID: #VU32786
Risk: Medium
CVSSv3.1: 5.2 [CVSS:3.1/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:F/RL:O/RC:C]
CVE-ID: CVE-2012-2122
CWE-ID:
CWE-287 - Improper Authentication
Exploit availability: Yes
DescriptionThe vulnerability allows a remote non-authenticated attacker to read and manipulate data.
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.
MitigationInstall update from vendor's website.
Vulnerable software versionsMySQL Server: 5.1.3 - 5.6.5
External linkshttp://bugs.mysql.com/bug.php?id=64884
http://kb.askmonty.org/en/mariadb-5162-release-notes/
http://lists.opensuse.org/opensuse-security-announce/2012-08/msg00007.html
http://seclists.org/oss-sec/2012/q2/493
http://secunia.com/advisories/49417
http://secunia.com/advisories/53372
http://security.gentoo.org/glsa/glsa-201308-06.xml
http://securitytracker.com/id?1027143
http://www.exploit-db.com/exploits/19092
http://www.securityfocus.com/bid/53911
http://community.rapid7.com/community/metasploit/blog/2012/06/11/cve-2012-2122-a-tragically-comedic-security-flaw-in-mysql
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.
