Microsoft SQL Server sp_replwritetovarbin() buffer overflow
| mssql-spreplwritetovarbin-bo (47182) |  High Risk |
Description:
Microsoft SQL Server is vulnerable to a heap-based buffer overflow, caused by improper bounds checking by the sp_replwritetovarbin() stored procedure. By sending a specially-crafted argument with uninitialized variables as parameters, a remote authenticated attacker could overflow a buffer and execute arbitrary code on the system with privileges of the SQL Server process or cause the application to crash.
*CVSS:
| Base Score: | 6.5 |
| Access Vector: | Network |
| Access Complexity: | Low |
| Authentication: | Single |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 5.1 |
| Exploitability: | Proof-of-Concept |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Privileges
Remedy:
Apply the appropriate patch for your system, as listed in Microsoft Security Bulletin MS09-004. See References.
For other distributions:
Apply the appropriate update for your system. See References.
References:
- Full-Disclosure Mailing List, Wed Dec 10 2008 - 06:45:02 CST: Microsoft SQL Server 2005 sp_replwritetovarbin memory overwrite (update to SEC Consult SA-20081209).
- Microsoft Security Advisory (961040): Vulnerability in SQL Server Could Allow Remote Code Execution.
- Microsoft Security Bulletin MS09-004: Vulnerability in Microsoft SQL Server Could Allow Remote Code Execution (959420).
- Offensive Security Exploit Database [01-28-2011]: Microsoft SQL Server sp_replwritetovarbin Memory Corruption.
- Offensive Security Exploit Database [02-08-2011]: Microsoft SQL Server sp_replwritetovarbin Memory Corruption via SQL Injection.
- SEC Consult Security Advisory < 20081209-0 >: Microsoft SQL Server 2000 sp_replwritetovarbin limited memory overwrite vulnerability.
- ASA-2009-055: MS09-004 Vulnerability in Microsoft SQL Server Could Allow Remote Code Execution (959420)
- BID-32710: Microsoft SQL Server 'sp_replwritetovarbin' Remote Memory Corruption Vulnerability
- CVE-2008-5416: Heap-based buffer overflow in Microsoft SQL Server 2000 SP4, 8.00.2050, 8.00.2039, and earlier; SQL Server 2000 Desktop Engine (MSDE 2000) SP4; SQL Server 2005 SP2 and 9.00.1399.06; SQL Server 2000 Desktop Engine (WMSDE) on Windows Server 2003 SP1 and SP2; and Windows Internal Database (WYukon) SP2 allows remote authenticated users to cause a denial of service (access violation exception) or execute arbitrary code by calling the sp_replwritetovarbin extended stored procedure with a set of invalid parameters that trigger memory overwrite, aka SQL Server sp_replwritetovarbin Limited Memory Overwrite Vulnerability.
- SA33034: Microsoft SQL Server 2000 "sp_replwritetovarbin()" Buffer Overflow
- SA43206: VMware vCenter Server / Update Manager SQL Express Multiple Vulnerabilities
- SECTRACK ID: 1021363: Microsoft SQL Server Memory Overwrite Bug in sp_replwritetovarbin May Let Remote Users Execute Arbitrary Code
- SECTRACK ID: 1021490: Microsoft SQL Server Heap Overflow Lets Remote Authenticated Users Execute Arbitrary Code
- US-CERT VU#696644: Microsoft SQL Server fails to properly validate parameters to the sp_replwritetovarbin extended stored procedure
- VUPEN/ADV-2008-3380: Microsoft SQL Server sp_replwritetovarbin() Buffer Overflow Vulnerability
Platforms Affected:
- Microsoft SQL Server 2000 SP4
- Microsoft SQL Server 2000 SP4 Itanium
- Microsoft SQL Server 2005 SP2
- Microsoft SQL Server 2005 SP2 x64
- Microsoft SQL Server 2005 SP2 Itanium
- Microsoft SQL Server 2005 SP2 Express
- Microsoft SQL Server Desktop Engine 2000
- Microsoft SQL Server Desktop Engine 2000 SP4
- Microsoft SQL Server with Advanced Services 2005 SP2 Express
- Microsoft Windows Internal Database SP2
- Microsoft Windows Internal Database SP2 x64
- VMware vCenter Server 4.1
- VMware vCenter Update Manager 1.0
- VMware vCenter Update Manager 4.0
Reported:
Dec 09, 2008
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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.