CVE-2015-2549 in Windows
Summary
by MITRE
The kernel in Microsoft Windows Vista SP2, Windows Server 2008 SP2 and R2 SP1, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2012 Gold and R2, Windows RT Gold and 8.1, and Windows 10 allows local users to gain privileges via a crafted application, aka "Windows Kernel Memory Corruption Vulnerability."
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Analysis
by VulDB Data Team • 06/20/2022
This vulnerability represents a critical kernel memory corruption flaw affecting multiple versions of the microsoft windows operating system family. The issue stems from improper handling of memory operations within the windows kernel, creating a condition where malicious applications can manipulate kernel memory structures to escalate privileges from standard user level to system level access. The vulnerability specifically impacts windows vista sp2, windows server 2008 sp2 and r2 sp1, windows 7 sp1, windows 8, windows 8.1, windows server 2012 gold and r2, windows rt gold and 8.1, and windows 10. from a cybersecurity perspective, this represents a privilege escalation vulnerability that directly violates the principle of least privilege and could enable attackers to bypass security controls that normally protect system integrity.
The technical exploitation of this vulnerability occurs through crafted applications that manipulate kernel memory structures in ways that were not properly validated or sanitized by the operating system. when a malicious application executes, it can cause the kernel to process memory operations that lead to memory corruption, ultimately allowing the attacker to execute arbitrary code with kernel-level privileges. this type of vulnerability falls under the common weakness enumeration category of cwe-121 stack-based buffer overflow and cwe-122 heap-based buffer overflow, representing memory safety issues that have been prevalent in operating system security for decades. the attack vector requires local execution since the vulnerability is in the kernel itself, meaning that an attacker must first gain access to a user account on the target system before attempting to exploit this flaw.
the operational impact of this vulnerability is severe and far-reaching across enterprise environments. once successfully exploited, attackers can gain complete system control, allowing them to install malware, steal sensitive data, modify system configurations, and establish persistent backdoors. the vulnerability affects systems that are widely deployed in corporate networks, government agencies, and critical infrastructure environments, making it particularly dangerous from an operational security standpoint. organizations running affected windows versions face significant risk of data breaches, system compromise, and potential lateral movement within their networks. from an attack framework perspective, this vulnerability maps to the attack technique of privilege escalation in the mitre att&ck framework, specifically targeting the execution and privilege escalation phases of an attack lifecycle.
mitigation strategies for this vulnerability center around prompt patch deployment and system hardening measures. microsoft released security updates that address the memory corruption issue in the kernel, and organizations must apply these patches immediately to protect their systems. in addition to patch management, network segmentation, user account control enforcement, and monitoring for suspicious system activity can help reduce the risk of successful exploitation. administrators should also consider implementing application whitelisting policies to prevent unauthorized applications from executing on affected systems. the vulnerability highlights the importance of maintaining up-to-date security patches and demonstrates how kernel-level flaws can create widespread security implications across multiple operating system versions. organizations should implement comprehensive vulnerability management programs that include regular security assessments, penetration testing, and continuous monitoring to identify and remediate similar vulnerabilities before they can be exploited by adversaries.