CVE-2024-29187 is a high-severity vulnerability affecting the WiX Toolset, which enables developers to create installers for Windows Installer. This vulnerability allows standard users to hijack binaries that are dropped in an insecure directory, leading to potential elevation of privileges. The flaw stems from the misuse of the GetTempPathW function when bundles run as the SYSTEM user.
The issue is classified as CVSS 7.3, indicating high severity. The attack vector is local, requiring low privileges and user interaction, which emphasizes the risk to organizations that might inadvertently execute malicious binaries. Patching is critical, as fixed versions 3.14.1 and 4.0.5 have been released.
Organizations should prioritize patching immediately. The potential for exploitation exists, and the risks associated with privilege escalation can be significant, impacting the integrity and confidentiality of sensitive data.
The vulnerability is currently awaiting analysis. As of now, no confirmed public exploits exist, but the nature of the vulnerability necessitates immediate attention from security teams.
Vulnerability Details
The WiX Toolset vulnerability allows for privilege escalation due to the insecure handling of binaries when the Burn application runs as SYSTEM. Specifically, the GetTempPathW function points to the insecure directory C:\Windows\Temp, enabling standard users to hijack binaries before they are loaded into the application.
The CVSS score for this vulnerability is 7.3, categorized as high severity. This score indicates a local attack vector, low attack complexity, and low privileges required for exploitation. User interaction is mandatory, which adds a layer of complexity for attackers.
The vulnerability was published on March 24, 2024, and is classified under CWE-732. It is essential to understand the implications of this vulnerability and take proactive measures to mitigate potential risks.
Technical Analysis
The root cause of CVE-2024-29187 lies in the insecure binary loading mechanism of the WiX Toolset when executed under the SYSTEM account. The attack vector is local, as it requires access to the machine where the vulnerable software is running. The attack complexity is low, indicating that an attacker can exploit this vulnerability with minimal effort.
Privileges required for exploitation are low, meaning that an attacker does not need elevated privileges to exploit the vulnerability. However, user interaction is required, as the user must execute the compromised binary for the exploit to succeed.
The potential impacts of this vulnerability are severe, as it can significantly compromise the confidentiality, integrity, and availability of the affected system. Given that the exploitation of this vulnerability could lead to unauthorized access and control over the vulnerable system, it is critical for organizations to address this issue promptly.
Risk & Impact Analysis
The real-world deployment risk of CVE-2024-29187 is significant due to the potential for privilege escalation. Attackers may leverage this vulnerability to execute arbitrary code with elevated privileges, leading to unauthorized access to sensitive data and critical system functions.
The blast radius potential is high, as many applications may be built using the WiX Toolset, affecting a wide range of systems. Organizations should assess their exposure and prioritize patching this vulnerability based on their unique risk profiles.
Given the CVSS score of 7.3, organizations should address this issue in their priority patch cycle. Immediate remediation is necessary to prevent unauthorized access and mitigate potential impacts from exploitation.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions include all versions prior to the vendor patch, specifically versions 3.14.1 and 4.0.5, which address this vulnerability.
Mitigation & Remediation
Organizations should prioritize patching this vulnerability with the latest versions of the WiX Toolset. The recommended versions are 3.14.1 and 4.0.5, which resolve the identified issues. Additionally, organizations should implement configuration hardening to minimize the risk of similar vulnerabilities in the future.
For ongoing security assurance, organizations can benefit from conducting a penetration testing program to identify and remediate potential vulnerabilities.
Detection Guidance
To detect potential exploitation of this vulnerability, organizations should monitor logs for indicators of suspicious activity. Behavioral anomalies during application installation processes may indicate attempts to exploit the vulnerability. Network signatures associated with unauthorized binary uploads should also be monitored.
AppSecure Threat Intelligence Insight
CVE-2024-29187 highlights the importance of secure coding practices in application development. Developers must ensure that temporary paths used in their applications are secure and protected from unauthorized access. As organizations navigate the complexities of application security, implementing a comprehensive vulnerability management program can help to mitigate such risks.
Security teams should also review their application security assessments regularly to stay updated on emerging threats. Continuous improvement in security practices is essential for defending against evolving attack vectors.
For further insights into application security, organizations can explore resources such as the application security assessment guide and best practices for securing applications.
Moreover, organizations should consider engaging in penetration testing to continuously assess their security posture and identify potential weaknesses.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
.webp)