CVE-2013-3660 is a high-severity vulnerability affecting multiple versions of Microsoft Windows, including Windows 7, Windows 8, and Windows Server editions. This vulnerability allows local users to exploit a flaw in the EPATHOBJ::pprFlattenRec function within the win32k.sys kernel-mode drivers. Specifically, it fails to properly initialize a pointer, which can lead to unauthorized write access to the PATHRECORD chain, resulting in privilege escalation.
The CVSS score for this vulnerability is 7.8, indicating high severity. The risk to organizations includes potential unauthorized access to critical system functions, which could lead to further exploitation or data breaches.
As this vulnerability has been confirmed to have known exploits, organizations must understand the urgency of addressing it. Local attackers may leverage this vulnerability to gain elevated privileges, thus increasing their control over affected systems.
Organizations should prioritize patching immediately to mitigate this vulnerability and reduce the risk of exploitation.
Vulnerability Details
The vulnerability resides in the EPATHOBJ::pprFlattenRec function in win32k.sys, which is part of the kernel-mode drivers in Microsoft Windows. The failure to properly initialize a pointer allows local users to manipulate the PATHRECORD chain, leading to privilege escalation.
The CVSS v3.1 score of 7.8 indicates a high severity level, highlighting the significant impact this vulnerability can have on confidentiality, integrity, and availability of systems. The vulnerability affects various Windows versions, including Windows XP, Vista, 7, 8, and several Server editions.
This vulnerability was published on May 24, 2013, and is classified under CWE-119, which addresses improper restriction of operations within the bounds of a memory buffer.
Technical Analysis
The root cause of CVE-2013-3660 is the improper initialization of a pointer in the EPATHOBJ::pprFlattenRec function. This flaw allows local users to exploit the vulnerability by consuming excessive paged memory and making numerous FlattenPath function calls.
The attack vector is local, requiring low complexity to exploit. No privileges are required to initiate the attack, although user interaction is necessary to trigger the vulnerability conditions. The impact on confidentiality, integrity, and availability is assessed as high, indicating severe implications for affected systems.
Risk & Impact Analysis
The real-world risk associated with CVE-2013-3660 is significant, given its potential to allow unauthorized privilege escalation. Attackers leveraging this vulnerability can gain control over systems, leading to unauthorized access to sensitive data or critical system functions. The blast radius could affect multiple systems across an organization, especially those running unpatched versions of the affected operating systems.
For organizations, this vulnerability necessitates immediate attention and remediation. With an EPS score of 0.706, the likelihood of exploitation is high, and the associated risks are critical in the context of organizational security.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | Yes |
Ransomware Use | No |
Affected Versions
The vulnerability affects several versions of Microsoft Windows, specifically:
Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, and Windows Server 2012. Organizations running these systems should consider them vulnerable until patches are applied.
Mitigation & Remediation
Microsoft has released patches for the vulnerability as part of its security bulletins. Organizations are strongly encouraged to apply these patches immediately. The relevant security bulletin is MS13-053, which provides details on the patches available for Windows operating systems.
For those unable to patch immediately, implementing configuration hardening strategies, monitoring for unusual user activities, and restricting local user permissions can help mitigate risks associated with this vulnerability. Organizations should also consider engaging in penetration testing to identify similar vulnerabilities in their environment.
Detection Guidance
Organizations should monitor logs for signs of unusual activity, particularly access attempts that may indicate exploitation of this vulnerability. Indicators of compromise may include unexpected system changes or unauthorized access attempts by local users.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2013-3660 highlights the importance of regular patch management and vulnerability assessments within organizations. The pattern of privilege escalation vulnerabilities in kernel-mode drivers continues to pose risks, emphasizing the need for proactive security measures.
Security teams should learn from this incident to reinforce their defenses. Regular vulnerability management programs can aid in identifying and mitigating similar vulnerabilities before they can be exploited.
Moreover, organizations should consider adopting a comprehensive approach to security that includes continuous monitoring, regular security assessments, and incident response planning to effectively manage risks.
For further insights on maintaining robust security practices, organizations can refer to our resources on penetration testing methodology, which provides a detailed approach to identifying and mitigating vulnerabilities.
Additionally, for organizations utilizing cloud services, exploring our cloud penetration testing guide can help in understanding the unique risks associated with cloud environments.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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