Microsoft SQL Server pre-authentication buffer overflow
| mssql-preauth-bo (9788) |  High Risk |
Description:
Microsoft SQL Server 2000 and Microsoft Desktop Engine (MSDE) 2000 are vulnerable to a buffer overflow. By sending malformed data to TCP port 1433, an unauthenticated remote attacker could overflow a buffer and possibly execute code on the server with SYSTEM level privileges.
Note: This vulnerability also affects Cisco CallManager, Cisco Unity, and Cisco Building Broadband Service Manager, which incorporate the use of either SQL Server 2000 or MSDE 2000.
Consequences:
Gain Access
Remedy:
Apply the appropriate patch for your system, as listed in Microsoft Security Bulletin MS02-056. See References.
For Microsoft SQL Server 2000:
Microsoft originally provided a patch for this vulnerability in MS02-056, but it was superseded by the patch released with MS02-061, and then superseded by the patch released with MS03-031.
For Cisco CallManager, Cisco Unity, and Cisco Building Broadband Service Manager: Refer to Cisco Security Advisory 2003 January 26 05:30 GMT for upgrade or patch information. See References.
References:
- BugTraq Mailing List, Mon Aug 05 2002 - 19:02:44 CDT : SPIKE 2.5 and associated vulns .
- BugTraq Mailing List, Wed Aug 07 2002 - 10:10:19 CDT : MS SQL Server Hello Overflow NASL script .
- CIAC Information Bulletin N-003: Microsoft Cumulative Patch for SQL Server.
- cisco-sa-20030126-ms02-061: Cisco Security Advisory: Microsoft SQL Server 2000 Vulnerabilities in Cisco Products - MS02-061.
- Microsoft Security Bulletin MS02-056: Cumulative Patch for SQL Server (Q316333).
- Microsoft Security Bulletin MS02-061: Elevation of Privilege in SQL Server Web Tasks (Q316333).
- Microsoft Security Bulletin MS03-031: Cumulative Patch for Microsoft SQL Server (815495).
- SQLSecurity.com Web site: SQL Server/MSDE-Based Applications.
- BID-5411: Microsoft SQL Server User Authentication Remote Buffer Overflow Vulnerability
- CVE-2002-1123: Buffer overflow in the authentication function for Microsoft SQL Server 2000 and Microsoft Desktop Engine (MSDE) 2000 allows remote attackers to execute arbitrary code via a long request to TCP port 1433, aka the Hello overflow.
- OSVDB ID: 10132: Microsoft SQL Server Authentication Function Remote Overflow
Platforms Affected:
- Cisco Building Broadband Service Manager 5.0
- Cisco Building Broadband Service Manager 5.1
- Cisco Unified CallManager 3.3
- Cisco Unity Server 3.0
- Cisco Unity Server 4.0
- Microsoft SQL Server 2000
Reported:
Aug 05, 2002
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