Oracle MySQL and MariaDB 5.5.x before 5.5.29, 5.3.x before 5.3.12, and 5.2.x before 5.2.14 does not modify the salt during multiple executions of the change_user command within the same connection which makes it easier for remote authenticated users to conduct brute force password guessing attacks.

The version of MariaDB installed on the remote host is prior to 10.0.1. It is, therefore, affected by multiple vulnerabilities as referenced in the mariadb-10-0-1-release-notes advisory.

  - Unspecified vulnerability in the Server component in Oracle MySQL 5.1.66 and earlier and 5.5.28 and     earlier allows remote authenticated users to affect availability via unknown vectors related to InnoDB.
    (CVE-2012-0572)

  - Unspecified vulnerability in the Server component in Oracle MySQL 5.1.66 and earlier, and 5.5.28 and     earlier, allows remote authenticated users to affect availability via unknown vectors. (CVE-2012-0574)

  - Unspecified vulnerability in the Server component in Oracle MySQL 5.5.28 and earlier allows remote     authenticated users to affect availability via unknown vectors related to Server Optimizer.
    (CVE-2012-0578)

  - Unspecified vulnerability in the Server component in Oracle MySQL 5.1.66 and earlier and 5.5.28 and     earlier allows remote attackers to affect availability via unknown vectors. (CVE-2012-1702)

  - Unspecified vulnerability in the Server component in Oracle MySQL 5.1.66 and earlier and 5.5.28 and     earlier allows remote authenticated users to affect availability via unknown vectors related to Server     Optimizer. (CVE-2012-1705)

  - Unspecified vulnerability in the Server component in Oracle MySQL 5.5.28 and earlier allows remote     authenticated users with Server Privileges to affect availability via unknown vectors. (CVE-2012-5096)

  - Stack-based buffer overflow in the acl_get function in Oracle MySQL 5.5.19 and other versions through     5.5.28, and 5.1.53 and other versions through 5.1.66, and MariaDB 5.5.2.x before 5.5.28a, 5.3.x before     5.3.11, 5.2.x before 5.2.13 and 5.1.x before 5.1.66, allows remote authenticated users to execute     arbitrary code via a long argument to the GRANT FILE command. (CVE-2012-5611)

  - Heap-based buffer overflow in Oracle MySQL 5.5.19 and other versions through 5.5.28, and MariaDB 5.5.28a     and possibly other versions, allows remote authenticated users to cause a denial of service (memory     corruption and crash) and possibly execute arbitrary code, as demonstrated using certain variations of the     (1) USE, (2) SHOW TABLES, (3) DESCRIBE, (4) SHOW FIELDS FROM, (5) SHOW COLUMNS FROM, (6) SHOW INDEX FROM,     (7) CREATE TABLE, (8) DROP TABLE, (9) ALTER TABLE, (10) DELETE FROM, (11) UPDATE, and (12) SET PASSWORD     commands. (CVE-2012-5612)

  - Oracle MySQL 5.5.38 and earlier, 5.6.19 and earlier, and MariaDB 5.5.28a, 5.3.11, 5.2.13, 5.1.66, and     possibly other versions, generates different error messages with different time delays depending on     whether a user name exists, which allows remote attackers to enumerate valid usernames. (CVE-2012-5615)

  - Oracle MySQL and MariaDB 5.5.x before 5.5.29, 5.3.x before 5.3.12, and 5.2.x before 5.2.14 does not modify     the salt during multiple executions of the change_user command within the same connection which makes it     easier for remote authenticated users to conduct brute force password guessing attacks. (CVE-2012-5627)

  - Unspecified vulnerability in the Server component in Oracle MySQL 5.5.28 and earlier allows remote     authenticated users to affect availability via unknown vectors related to Server Partition.
    (CVE-2013-0367)

  - Unspecified vulnerability in the Server component in Oracle MySQL 5.5.28 and earlier allows remote     authenticated users to affect availability via unknown vectors related to InnoDB. (CVE-2013-0368)

  - Unspecified vulnerability in the Server component in Oracle MySQL 5.5.28 and earlier allows remote     authenticated users to affect availability, related to MyISAM. (CVE-2013-0371)

  - Unspecified vulnerability in the Server component in Oracle MySQL 5.1.66 and earlier, and 5.5.28 and     earlier, allows remote attackers to affect availability via unknown vectors related to Server Locking.
    (CVE-2013-0383)

  - Unspecified vulnerability in the Server component in Oracle MySQL 5.1.66 and earlier, and 5.5.28 and     earlier, allows remote authenticated users to affect availability via unknown vectors related to     Information Schema. (CVE-2013-0384)

  - Unspecified vulnerability in the Server component in Oracle MySQL 5.1.66 and earlier, and 5.5.28 and     earlier, allows local users to affect confidentiality and integrity via unknown vectors related to Server     Replication. (CVE-2013-0385)

  - Unspecified vulnerability in the Server component in Oracle MySQL 5.5.28 and earlier allows remote     authenticated users to affect availability via unknown vectors related to Stored Procedure.
    (CVE-2013-0386)

  - Unspecified vulnerability in the Server component in Oracle MySQL 5.1.66 and earlier, and 5.5.28 and     earlier, allows remote authenticated users to affect availability via unknown vectors related to Server     Optimizer. (CVE-2013-0389)

  - Unspecified vulnerability in Oracle MySQL 5.1.66 and earlier and 5.5.28 and earlier allows remote     authenticated users to affect confidentiality, integrity, and availability via unknown vectors related to     Server Privileges. (CVE-2013-1531)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The installed version of MySQL may be affected by a security bypass vulnerability because the salt used during password validation does not change when switching users with the 'COM_CHANGE_USER' command.
Additionally, the connection is not reset when invalid credentials are submitted.  Normally, when a connection is initiated and invalid credentials are submitted, the connection is terminated, which slows brute-force attempts substantially.

The remote host is affected by the vulnerability described in GLSA-201308-06 (MySQL: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in MySQL. Please review       the CVE identifiers referenced below for details.
  Impact :

    A remote attacker could send a specially crafted request, possibly       resulting in execution of arbitrary code with the privileges of the       application or a Denial of Service condition.
  Workaround :

    There is no known workaround at this time.

Multiple security issues were discovered in MySQL and this update includes new upstream MySQL versions to fix these issues.

MySQL has been updated to 5.1.69 in Ubuntu 10.04 LTS and Ubuntu 11.10.
Ubuntu 12.04 LTS and Ubuntu 12.10 have been updated to MySQL 5.5.31.

In addition to security fixes, the updated packages contain bug fixes, new features, and possibly incompatible changes.

Please see the following for more information:
http://dev.mysql.com/doc/relnotes/mysql/5.1/en/news-5-1-69.html http://dev.mysql.com/doc/relnotes/mysql/5.5/en/news-5-5-31.html http://www.oracle.com/technetwork/topics/security/cpuapr2013-1899555.h tml.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Updated mariadb packages includes fixes for the following security vulnerabilities :

Unspecified vulnerability in the MySQL Server component in Oracle MySQL 5.5.26 and earlier allows remote attackers to affect integrity and availability, related to MySQL Client (CVE-2012-3147).

Unspecified vulnerability in the MySQL Server component in Oracle MySQL 5.1.64 and earlier, and 5.5.26 and earlier, allows remote attackers to affect confidentiality, integrity, and availability via unknown vectors related to Protocol (CVE-2012-3158).

Multiple SQL injection vulnerabilities in the replication code in Oracle MySQL possibly before 5.5.29, and MariaDB 5.1.x through 5.1.62, 5.2.x through 5.2.12, 5.3.x through 5.3.7, and 5.5.x through 5.5.25, allow remote authenticated users to execute arbitrary SQL commands via vectors related to the binary log. NOTE: as of 20130116, Oracle has not commented on claims from a downstream vendor that the fix in MySQL 5.5.29 is incomplete (CVE-2012-4414).

Stack-based buffer overflow in the acl_get function in Oracle MySQL 5.5.19 and other versions through 5.5.28, and 5.1.53 and other versions through 5.1.66, and MariaDB 5.5.2.x before 5.5.28a, 5.3.x before 5.3.11, 5.2.x before 5.2.13 and 5.1.x before 5.1.66, allows remote authenticated users to execute arbitrary code via a long argument to the GRANT FILE command (CVE-2012-5611).

A buffer overflow that can cause a server crash or arbitrary code execution (a variant of CVE-2012-5611)

Heap-based buffer overflow in Oracle MySQL 5.5.19 and other versions through 5.5.28, and MariaDB 5.5.28a and possibly other versions, allows remote authenticated users to cause a denial of service (memory corruption and crash) and possibly execute arbitrary code, as demonstrated using certain variations of the (1) USE, (2) SHOW TABLES, (3) DESCRIBE, (4) SHOW FIELDS FROM, (5) SHOW COLUMNS FROM, (6) SHOW INDEX FROM, (7) CREATE TABLE, (8) DROP TABLE, (9) ALTER TABLE, (10) DELETE FROM, (11) UPDATE, and (12) SET PASSWORD commands (CVE-2012-5612).

MySQL 5.5.19 and possibly other versions, and MariaDB 5.5.28a, 5.3.11, 5.2.13, 5.1.66, and possibly other versions, generates different error messages with different time delays depending on whether a user name exists, which allows remote attackers to enumerate valid usernames (CVE-2012-5615). Be advised that for CVE-2012-5615 to be completely closed, it's recommended to remove any anonymous logins. Previously, such a user without access rights was added by default.

A vulnerability was found in the handling of password salt values in MySQL. When a user logs into MySQL a salt value is generated that is then used to prevent password guessing attacks (since the salt value must be known in order to send a password). This salt value is created at the start of a session and used for the entire session, once authenticated an attacker can use the MySQL change_user command to attempt to login as a different, as the salt value is known a password guessing attack will be much more efficient (CVE-2012-5627).

in addition it fixes MDEV-4029 and rpl.rpl_mdev382 test from mariadb-bench, and a problem preventing the feedback plugin from working has been corrected.

The version of MariaDB 5.5 running on the remote host is prior to 5.5.29. It is, therefore, potentially affected by vulnerabilities in the following components :

  - Information Schema
  - InnoDB
  - MyISAM
  - Server
  - Server Locking
  - Server Optimizer
  - Server Parser
  - Server Partition
  - Server Privileges
  - Server Replication
  - Stored Procedure

The version of MariaDB 5.3 running on the remote host is prior to 5.3.12. It is, therefore, potentially affected by vulnerabilities in the following components :

  - Information Schema
  - InnoDB
  - Server
  - Server Locking
  - Server Optimizer
  - Server Privileges
  - Server Replication

The version of MariaDB 5.2 running on the remote host is prior to 5.2.14. It is, therefore, potentially affected by vulnerabilities in the following components :

  - Information Schema
  - InnoDB
  - Server
  - Server Locking
  - Server Optimizer
  - Server Privileges
  - Server Replication

ORACLE reports :

Multiple SQL injection vulnerabilities in the replication code

Stack-based buffer overflow

Heap-based buffer overflow

ID	Name	Product	Family	Severity
167905	MariaDB 10.0.0 < 10.0.1 Multiple Vulnerabilities	Nessus	Databases	critical
71116	MySQL Server COM_CHANGE_USER Command Security Bypass	Nessus	Databases	medium
69508	GLSA-201308-06 : MySQL: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	medium
66215	Ubuntu 10.04 LTS / 11.10 / 12.04 LTS / 12.10 : mysql-5.1, mysql-5.5, mysql-dfsg-5.1 vulnerabilities (USN-1807-1)	Nessus	Ubuntu Local Security Checks	high
66114	Mandriva Linux Security Advisory : mariadb (MDVSA-2013:102)	Nessus	Mandriva Local Security Checks	high
64935	MariaDB 5.5 < 5.5.29 Multiple Vulnerabilities	Nessus	Databases	medium
64934	MariaDB 5.3 < 5.3.12 Multiple Vulnerabilities	Nessus	Databases	medium
64933	MariaDB 5.2 < 5.2.14 Multiple Vulnerabilities	Nessus	Databases	medium
64421	FreeBSD : mysql/mariadb/percona server -- multiple vulnerabilities (8c773d7f-6cbb-11e2-b242-c8600054b392)	Nessus	FreeBSD Local Security Checks	medium

Detections

Analytics

CVE-2012-5627

high

Tenable Plugins

critical

medium

medium

high

high

medium

medium

medium

medium