CVE-2008-1457 in Windows
Summary
by MITRE
The Event System in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP1 and SP2, Vista Gold and SP1, and Server 2008 does not properly validate per-user subscriptions, which allows remote authenticated users to execute arbitrary code via a crafted event subscription request.
Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.
Analysis
by VulDB Data Team • 09/18/2018
The vulnerability described in CVE-2008-1457 resides within the Event System component of multiple Microsoft Windows operating systems including Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP1 and SP2, Vista Gold and SP1, and Server 2008. This issue represents a critical security flaw that stems from inadequate input validation mechanisms within the event subscription processing functionality. The vulnerability specifically targets the per-user subscription validation process, creating an avenue for malicious exploitation that could lead to arbitrary code execution. The Event System serves as a core component responsible for managing event notifications and subscriptions across the operating system, making it a prime target for attackers seeking to escalate privileges or gain unauthorized access to systems.
The technical flaw manifests when the system fails to properly validate user-submitted event subscription requests, allowing authenticated users to craft malicious subscription parameters that bypass normal security checks. This improper validation creates a condition where crafted event subscription requests can be processed without adequate sanitization or verification of input parameters. The vulnerability falls under the CWE-20 category of "Improper Input Validation" and can be mapped to ATT&CK technique T1059.001 for command and scripting interpreter usage. Attackers can exploit this weakness by submitting specially crafted event subscription requests that contain malicious payloads or malformed parameters designed to trigger buffer overflows, code injection, or other execution-based vulnerabilities within the Event System processing engine. The authentication requirement for exploitation means that an attacker must first obtain valid user credentials, but once achieved, the privilege escalation potential becomes significant.
The operational impact of this vulnerability extends beyond simple code execution capabilities to encompass potential system compromise and persistent access. When successfully exploited, the vulnerability allows remote authenticated users to execute arbitrary code with the privileges of the affected system, potentially enabling attackers to install malware, modify system configurations, or establish backdoor access. This vulnerability particularly affects enterprise environments where Windows systems are widely deployed and where legitimate users might have the necessary permissions to submit event subscriptions. The attack surface is broad due to the widespread adoption of these operating systems across various organizational infrastructures. Organizations using these vulnerable versions face risks including unauthorized data access, system availability disruption, and potential lateral movement within network environments. The vulnerability's presence in multiple Windows versions indicates a systemic issue within the Event System implementation that required patching across the entire Windows product line.
Mitigation strategies for CVE-2008-1457 should prioritize immediate implementation of Microsoft security patches and updates released in response to this vulnerability. System administrators should ensure that all affected Windows systems receive the appropriate security updates and service packs that address the event subscription validation flaws. Network segmentation and access control measures can help limit the potential impact by restricting user access to event subscription functionality where possible. Implementing monitoring solutions that can detect anomalous event subscription requests or unusual patterns in event system usage may provide early warning capabilities. The vulnerability's classification as a privilege escalation issue underscores the importance of maintaining least-privilege access controls and regularly reviewing user permissions. Security teams should also consider implementing intrusion detection systems that can identify attempts to exploit this specific vulnerability through monitoring of event system API calls and subscription request patterns. Organizations should conduct regular vulnerability assessments to identify and remediate similar issues in their Windows environments, particularly focusing on areas where user input validation may be insufficient. The ATT&CK framework suggests that defensive measures should include monitoring for suspicious event subscription activities and implementing application whitelisting where appropriate to prevent unauthorized code execution.