IBM DB2 CREATE VARIABLE security bypass

db2-createvariable-security-bypass (73493)

Medium Risk

Description:

IBM DB2 could allow a remote authenticated attacker to bypass security restrictions, caused by improper checks on variables. An attacker could exploit this vulnerability using a specially-crafted SQL statement to bypass table restrictions and obtain sensitive information.

*CVSS:

Base Score:	4
Access Vector:	Network
Access Complexity:	Low
Authentication:	Single
Confidentiality Impact:	Partial
Integrity Impact:	None
Availability Impact:	None
Temporal Score:	3.5
Exploitability:	High
Remediation Level:	Official-Fix
Report Confidence:	Confirmed

Consequences:

Bypass Security

Remedy:

Refer to IBM Flash (Alert) 1588100 for patch, upgrade or suggested workaround information. See References.

References:

• IBM Security Bulletin 1588100: Security Bulletin: Unauthorized Access to Table Vulnerability in DB2 (CVE-2012-0709).
• BID-52326: IBM DB2 Multiple Security Vulnerabilities
• CVE-2012-0709: IBM DB2 9.5 before FP9, 9.7 through FP5, and 9.8 through FP4 does not properly check variables, which allows remote authenticated users to bypass intended restrictions on viewing table data by leveraging the CREATEIN privilege to execute crafted SQL CREATE VARIABLE statements.
• OSVDB ID: 79846: IBM DB2 Authorization Checks Table Information Disclosure
• SA48279: IBM DB2 Multiple Vulnerabilities

Platforms Affected:

• IBM DB2 Universal Database 9

Reported:

Mar 16, 2012

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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