CVE Catalog

CVE-2006-2373

High
Published: Translated: NVD NIST

Summary

The SMB driver (MRXSMB.SYS) in Microsoft Windows 2000 SP4, XP SP1/SP2, and Server 2003 SP1 and earlier contains a privilege escalation vulnerability. A local user can call the MrxSmbCscIoctlOpenForCopyChunk function with the METHOD_NEITHER flag and an arbitrary kernel memory address, leading to arbitrary code execution.

Risk Assessment

An attacker with local access can gain full system control by executing code in kernel context, resulting in data compromise, system modification, or denial of service.

Recommendation

Apply the security update provided by Microsoft in bulletin MS06-030 immediately. Restrict local access to systems and monitor for unusual SMB driver behavior.

Related vulnerabilities

Original NVD description (English source)

The Server Message Block (SMB) driver (MRXSMB.SYS) in Microsoft Windows 2000 SP4, XP SP1 and SP2, and Server 2003 SP1 and earlier allows local users to execute arbitrary code by calling the MrxSmbCscIoctlOpenForCopyChunk function with the METHOD_NEITHER method flag and an arbitrary address, possibly for kernel memory, aka the "SMB Driver Elevation of Privilege Vulnerability."

Vulnerability data from NVD (NIST) · CISA KEV · EPSS