CVE-2008-7025 in ZoneAlarm
Summary
by MITRE
TrueVector in Check Point ZoneAlarm 8.0.020.000, with vsmon.exe running, allows remote HTTP proxies to cause a denial of service (crash) and disable the HIDS module via a crafted response.
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Analysis
by VulDB Data Team • 11/22/2018
The vulnerability identified as CVE-2008-7025 affects Check Point ZoneAlarm version 8.0.020.000 and specifically targets the TrueVector component within the software architecture. This issue manifests when the vsmon.exe process is actively running, creating a critical weakness in the host intrusion detection system's operational integrity. The vulnerability exploits a fundamental flaw in how the system processes HTTP proxy responses, allowing malicious actors to disrupt the normal functioning of the security monitoring infrastructure.
The technical implementation of this vulnerability resides in the improper handling of crafted HTTP responses by the TrueVector module. When a remote HTTP proxy server sends a specially constructed response to a system running ZoneAlarm with vsmon.exe active, the system's processing logic fails to properly validate or sanitize the incoming data. This leads to a buffer overflow condition or memory corruption scenario that ultimately results in the complete crash of the HIDS (Host Intrusion Detection System) module. The vulnerability operates at the application layer and leverages the trust relationship between the security software and HTTP proxy servers, making it particularly dangerous as it can be triggered without requiring direct system access or elevated privileges.
The operational impact of CVE-2008-7025 represents a significant security risk for organizations relying on ZoneAlarm's HIDS capabilities. When the HIDS module becomes disabled due to this vulnerability, the system loses its ability to monitor and detect malicious activities on the host machine. This creates a window of opportunity for attackers to execute further malicious operations without detection, as the primary defense mechanism against intrusion activities is effectively neutralized. The denial of service aspect means that legitimate security monitoring functions are completely disrupted, potentially leading to extended periods of undetected compromise. The vulnerability also demonstrates poor input validation practices that align with CWE-121, which addresses stack-based buffer overflow conditions, and CWE-122, which covers heap-based buffer overflow scenarios.
From an adversarial perspective, this vulnerability maps directly to several ATT&CK framework techniques including T1499, which involves network disruption and denial of service attacks, and T1071, which covers application layer protocol usage. Attackers can leverage this weakness to establish persistent access while simultaneously disabling critical security controls. The vulnerability's remote exploitability means that threat actors can trigger the condition from outside the network perimeter, making it particularly concerning for enterprise environments where multiple systems may be exposed to HTTP proxy traffic. Organizations implementing defense-in-depth strategies should recognize this as a critical gap in their security posture, especially when considering that the exploit requires minimal privileges and can be executed through standard network traffic.
The mitigation strategies for CVE-2008-7025 should focus on immediate patch deployment from Check Point, which would address the underlying code logic issues in the TrueVector component. Network administrators should also implement additional monitoring to detect unusual HTTP proxy behavior that might indicate exploitation attempts. The vulnerability highlights the importance of validating all external inputs and implementing proper error handling mechanisms, which aligns with security best practices outlined in NIST SP 800-160 and ISO/IEC 27001 standards. Organizations should also consider implementing network segmentation to limit exposure to potentially malicious HTTP proxy servers and ensure that critical security infrastructure components are properly isolated from untrusted network traffic sources.