Quantum Secular Labs / Blog / Advisories

CVE-2002-1145: Microsoft Data Engine: Privilege escalation

CVE-2002-1145 has a CVSS v2 base score of 10.0 (the maximum on that scale) and affects Microsoft Data Engine. Per its scoring, it can be exploited over the network, without authentication. The scored impact on confidentiality, integrity and availability is the highest available.

Vulnerability description

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.

Severity breakdown

CVSS v2.0 10.0: AV:N/AC:L/Au:N/C:C/I:C/A:C

  • Access vector: Network. Exploitable remotely over the network.
  • Access complexity: Low. No special conditions are required.
  • Authentication: None. No authentication is needed.
  • Confidentiality impact: Complete. Total information disclosure.
  • Integrity impact: Complete. Total loss of integrity.
  • Availability impact: Complete. Total shutdown of the component.

Affected products

  • Microsoft Data Engine: 1.0; 2000
  • Microsoft SQL Server: 7.0; 7.0 sp1; 7.0 sp2; 7.0 sp3; 7.0 sp4; 2000; 2000 sp1; 2000 sp2

References