CVE-2007-4375 in Diskeeper
Summary
by MITRE
The administrative interface (aka DkService.exe) in Diskeeper 9 Professional, 2007 Pro Premier, and probably other versions exposes a memory comparison function via RPC over TCP, which allows remote attackers to (1) obtain sensitive information (process memory contents), as demonstrated by an attack that obtains module base addresses to defeat Address Space Layout Randomization (ASLR); or (2) cause a denial of service (application crash) via an out-of-bounds address.
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Analysis
by VulDB Data Team • 07/21/2021
The vulnerability identified as CVE-2007-4375 affects the administrative interface component known as DkService.exe within Diskeeper 9 Professional and 2007 Pro Premier software versions. This flaw resides in the remote procedure call implementation that operates over TCP protocol, creating an attack surface that adversaries can exploit remotely without requiring local system access. The administrative interface typically provides system management capabilities, but in this case it exposes functionality that was intended for internal use rather than external communication.
The technical implementation of this vulnerability stems from an improperly secured memory comparison function that is accessible through the RPC interface. When remote attackers connect to the service, they can invoke this function with malformed parameters that cause the application to return process memory contents. This memory disclosure occurs because the function does not properly validate input parameters or enforce proper access controls before exposing memory addresses. The vulnerability specifically affects how the system handles memory addresses during comparison operations, allowing attackers to read memory locations beyond normal bounds.
The operational impact of this vulnerability is significant as it enables attackers to gather sensitive information that can be used to bypass modern security mitigations. The most concerning aspect is the ability to obtain module base addresses which directly undermines Address Space Layout Randomization (ASLR) protections. ASLR is a critical security feature designed to randomize memory layout to prevent exploitation of memory corruption vulnerabilities, but this flaw allows attackers to defeat ASLR by reading memory addresses and constructing targeted attacks. Additionally, the vulnerability can be exploited to cause denial of service conditions through out-of-bounds memory access attempts that result in application crashes.
This vulnerability aligns with CWE-200 (Information Exposure) and CWE-125 (Out-of-bounds Read) categories, representing information disclosure and memory safety issues respectively. The attack pattern follows techniques described in the MITRE ATT&CK framework under T1059 (Command and Scripting Interpreter) and T1068 (Exploitation for Privilege Escalation) where attackers leverage exposed services to gather intelligence and disrupt system operations. The vulnerability demonstrates poor input validation and inadequate access control mechanisms in the RPC service implementation, which represents a fundamental security flaw in the software architecture.
Mitigation strategies should focus on immediate patching of affected software versions, implementing network segmentation to restrict access to the administrative interface, and applying firewall rules to block unnecessary TCP ports used by DkService.exe. Organizations should also consider disabling the administrative interface when not actively needed, implementing proper authentication controls, and monitoring for unusual network activity on the affected ports. The vulnerability highlights the importance of secure RPC implementation practices and proper input validation in service components that are exposed to network traffic.