Microsoft » Sql Server » 2000 : Security Vulnerabilities, CVEs,

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."

Buffer overflow in the SQLVDIRLib.SQLVDirControl ActiveX control in Tools\Binn\sqlvdir.dll in Microsoft SQL Server 2000 (aka SQL Server 8.0) allows remote attackers to cause a denial of service (browser crash) or possibly execute arbitrary code via a long URL in the second argument to the Connect method. NOTE: this issue is not a vulnerability in many environments, since the control is not marked as safe for scripting and would not execute with default Internet Explorer settings.

Microsoft SQL Server 7, 2000, and MSDE allows local users to execute arbitrary code via a certain request to the Local Procedure Calls (LPC) port that leads to a buffer overflow.

Microsoft SQL Server 7, 2000, and MSDE allows local or remote authenticated users to cause a denial of service (crash or hang) via a long request to a named pipe.

Microsoft SQL Server 7, 2000, and MSDE allows local users to gain privileges by hijacking a named pipe during the authentication of another user, aka the "Named Pipe Hijacking" vulnerability.

Microsoft SQL Server 2000 through SQL Server 2000 SP2 allows the "public" role to execute the (1) sp_MSSetServerProperties or (2) sp_MSsetalertinfo stored procedures, which allows attackers to modify configuration including SQL server startup and alert settings.

Microsoft SQL Server 6.0 through 2000, with SQL Authentication enabled, uses weak password encryption (XOR), which allows remote attackers to sniff and decrypt the password.

The xp_runwebtask stored procedure in the Web Tasks component of Microsoft SQL Server 7.0 and 2000, Microsoft Data Engine (MSDE) 1.0, and Microsoft Desktop Engine (MSDE) 2000 can be executed by PUBLIC, which allows an attacker to gain privileges by updating a webtask that is owned by the database owner through the msdb.dbo.mswebtasks table, which does not have strong permissions.

Microsoft SQL Server 7.0 and 2000, including Microsoft Data Engine (MSDE) 1.0 and Microsoft Desktop Engine (MSDE) 2000, writes output files for scheduled jobs under its own privileges instead of the entity that launched it, which allows attackers to overwrite system files, aka "Flaw in Output File Handling for Scheduled Jobs."

Buffer overflow in the Database Console Command (DBCC) that handles user inputs in Microsoft SQL Server 7.0 and 2000, including Microsoft Data Engine (MSDE) 1.0 and Microsoft Desktop Engine (MSDE) 2000, allows attackers to execute arbitrary code via a long SourceDB argument in a "non-SQL OLEDB data source" such as FoxPro, a variant of CAN-2002-0644.

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.

Buffer overflow in the OpenDataSource function of the Jet engine on Microsoft SQL Server 2000 allows remote attackers to execute arbitrary code.

Microsoft SQL Server 2000 allows remote attackers to cause a denial of service via a malformed 0x08 packet that is missing a colon separator.

Microsoft SQL Server 7.0 and 2000 installs with weak permissions for extended stored procedures that are associated with helper functions, which could allow unprivileged users, and possibly remote attackers, to run stored procedures with administrator privileges via (1) xp_execresultset, (2) xp_printstatements, or (3) xp_displayparamstmt.

The keep-alive mechanism for Microsoft SQL Server 2000 allows remote attackers to cause a denial of service (bandwidth consumption) via a "ping" style packet to the Resolution Service (UDP port 1434) with a spoofed IP address of another SQL Server system, which causes the two servers to exchange packets in an infinite loop.

Multiple buffer overflows in the Resolution Service for Microsoft SQL Server 2000 and Microsoft Desktop Engine 2000 (MSDE) allow remote attackers to cause a denial of service or execute arbitrary code via UDP packets to port 1434 in which (1) a 0x04 byte that causes the SQL Monitor thread to generate a long registry key name, or (2) a 0x08 byte with a long string causes heap corruption, as exploited by the Slammer/Sapphire worm.

SQL injection vulnerability in stored procedures for Microsoft SQL Server 2000 and Microsoft Desktop Engine (MSDE) 2000 may allow authenticated users to execute arbitrary commands.

Buffer overflow in several Database Consistency Checkers (DBCCs) for Microsoft SQL Server 2000 and Microsoft Desktop Engine (MSDE) 2000 allows members of the db_owner and db_ddladmin roles to execute arbitrary code.

The installation of Microsoft Data Engine 1.0 (MSDE 1.0), and Microsoft SQL Server 2000 creates setup.iss files with insecure permissions and does not delete them after installation, which allows local users to obtain sensitive data, including weakly encrypted passwords, to gain privileges, aka "SQL Server Installation Process May Leave Passwords on System."

The registry key containing the SQL Server service account information in Microsoft SQL Server 2000, including Microsoft SQL Server Desktop Engine (MSDE) 2000, has insecure permissions, which allows local users to gain privileges, aka "Incorrect Permission on SQL Server Service Account Registry Key."

Buffer overflow in bulk insert procedure of Microsoft SQL Server 2000, including Microsoft SQL Server Desktop Engine (MSDE) 2000, allows attackers with database administration privileges to execute arbitrary code via a long filename in the BULK INSERT query.

Buffer overflow in the password encryption function of Microsoft SQL Server 2000, including Microsoft SQL Server Desktop Engine (MSDE) 2000, allows remote attackers to gain control of the database and execute arbitrary code via SQL Server Authentication, aka "Unchecked Buffer in Password Encryption Procedure."

The MSDTC (Microsoft Distributed Transaction Service Coordinator) for Microsoft Windows 2000, Microsoft IIS 5.0 and SQL Server 6.5 through SQL 2000 0.0 allows remote attackers to cause a denial of service (crash or hang) via malformed (random) input.

Cross-site scripting vulnerability in the SQLXML component of Microsoft SQL Server 2000 allows an attacker to execute arbitrary script via the root parameter as part of an XML SQL query, aka "Script Injection via XML Tag."

Buffer overflow in the SQLXML ISAPI extension of Microsoft SQL Server 2000 allows remote attackers to execute arbitrary code via data queries with a long content-type parameter, aka "Unchecked Buffer in SQLXML ISAPI Extension."