CVE-2012-0151 is a high-severity vulnerability affecting multiple versions of Microsoft Windows, specifically the Authenticode Signature Verification function. This vulnerability allows user-assisted remote attackers to execute arbitrary code via a modified portable executable (PE) file that does not properly validate its digest. The vulnerability exists in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, Windows 7 Gold and SP1, and Windows 8 Consumer Preview.
With a CVSS score of 7.8, the vulnerability is classified as high severity. The potential for exploitation is significant, as it allows for remote code execution if an attacker can convince a user to run a maliciously crafted PE file. Organizations must prioritize remediation efforts to protect against this vulnerability and mitigate associated risks.
The vulnerability was publicly disclosed on April 10, 2012, and has been analyzed thoroughly. As of now, it is important to note that there are no public exploits available for this vulnerability, but it is included in the Known Exploited Vulnerabilities catalog, indicating that it has been actively exploited in the wild.
Organizations should prioritize patching immediately. This vulnerability poses a risk to confidentiality, integrity, and availability, necessitating a swift response to secure affected systems.
Vulnerability Details
The Authenticode Signature Verification function fails to adequately validate the digest of signed PE files, identified as the 'WinVerifyTrust Signature Validation Vulnerability.' This vulnerability is classified under CWE-20, indicating improper input validation.
The CVSS v3.1 vector string for this vulnerability is CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, indicating that the attack vector is local, the attack complexity is low, and user interaction is required.
Technical Analysis
The root cause of CVE-2012-0151 lies within the failure of the Authenticode Signature Verification function to properly validate the digest of a signed PE file. This oversight allows attackers to append additional content to a legitimate executable file, effectively bypassing signature validation.
The attack vector is local, meaning that an attacker must have some level of access to the target system, typically requiring the user to execute the malicious file. The attack complexity is assessed as low due to the straightforward nature of the exploitation method, which does not require advanced technical skills.
No privileges are required to exploit this vulnerability, but user interaction is necessary to execute the modified file. The impact of a successful exploitation includes high confidentiality, integrity, and availability risks.
Risk & Impact Analysis
Risk to organizations includes the potential for unauthorized code execution, leading to complete system compromise. The blast radius is considerable, as the vulnerability affects multiple Windows operating systems, including Windows 7, Windows Vista, and Windows Server editions.
Organizations with systems still running these affected versions are at significant risk. Given the high CVSS score, immediate attention is required to evaluate and remediate affected systems. The urgency of this vulnerability is critical.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | Yes |
Ransomware Use | No |
Affected Versions
The following versions of Microsoft Windows are affected by CVE-2012-0151: Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, Windows 7 Gold and SP1, and Windows 8 Consumer Preview. All versions prior to vendor patch are vulnerable.
Mitigation & Remediation
Organizations should apply the latest patches from Microsoft to mitigate this vulnerability. The patch available in Microsoft Security Bulletin MS12-024 addresses the issue. If immediate patching is not feasible, organizations should implement network segmentation to limit exposure and monitor for unusual file execution behavior.
For further guidance, organizations can refer to the penetration testing to validate their security posture against potential exploitation.
Detection Guidance
To detect potential exploitation attempts, organizations should monitor logs for unusual file executions, particularly any PE files that show signs of modification. Behavioral anomalies associated with unauthorized code execution should be investigated promptly.
AppSecure Threat Intelligence Insight
CVE-2012-0151 represents a critical vulnerability within the Microsoft Windows ecosystem, highlighting the ongoing necessity for robust patch management and vulnerability assessment practices. The trend of remote code execution vulnerabilities indicates that organizations must remain vigilant and proactively assess their security measures to fend off potential threats.
For organizations looking to strengthen their defenses, implementing a comprehensive application security assessment framework can provide significant insights into existing vulnerabilities and how to address them effectively.
Additionally, organizations should consider adopting continuous security testing practices to mitigate risk and ensure ongoing compliance with security standards. Resources such as continuous penetration testing can be invaluable in identifying and remediating vulnerabilities before they can be exploited.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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