CVE-2013-1259 in Windows
Summary
by MITRE
Race condition in win32k.sys in the kernel-mode drivers in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP2, Windows Server 2008 SP2, R2, and R2 SP1, and Windows 7 Gold and SP1 allows local users to gain privileges, and consequently read the contents of arbitrary kernel memory locations, via a crafted application, a different vulnerability than other CVEs listed in MS13-016.
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Analysis
by VulDB Data Team • 05/05/2021
The vulnerability described in CVE-2013-1259 represents a critical race condition flaw within the win32k.sys kernel-mode driver component of Microsoft Windows operating systems. This issue affects a wide range of Windows versions including XP SP2 and SP3, Windows Server 2003 SP2, Vista SP2, Windows Server 2008 SP2 and R2, and Windows 7 Gold and SP1. The race condition occurs in the kernel-mode drivers responsible for handling user interface operations, specifically within the Windows graphics subsystem that manages windowing and user input functionality. This vulnerability is particularly dangerous because it allows local attackers to escalate privileges from standard user level to kernel level access, effectively bypassing operating system security boundaries.
The technical exploitation of this race condition involves a crafted application that manipulates the timing of specific kernel-mode operations to create a window where memory access controls are temporarily bypassed. This flaw is classified as a race condition under CWE-362, which specifically addresses the issue of concurrent access to shared resources without proper synchronization mechanisms. The vulnerability enables attackers to read arbitrary kernel memory locations, which can lead to information disclosure of sensitive system data including credentials, encryption keys, and other confidential information stored in kernel memory space. The exploitation technique leverages the timing gap between when certain kernel functions are called and when proper access controls are enforced, allowing the malicious application to access memory regions that should normally be protected from user-mode processes.
From an operational impact perspective, this vulnerability significantly undermines the security model of Windows operating systems by providing a pathway for privilege escalation attacks. The ability to read arbitrary kernel memory locations creates substantial risks for organizations as it can expose sensitive system information that could be used for further attacks or to compromise the entire system. Security analysts categorize this vulnerability under the MITRE ATT&CK framework as a privilege escalation technique, specifically targeting the 'Windows Privilege Escalation' tactic. The vulnerability's impact extends beyond simple information disclosure since it provides attackers with kernel-level access that can be leveraged to modify system behavior, install persistent backdoors, or disable security mechanisms. The fact that this vulnerability affects multiple Windows versions makes it particularly concerning for enterprise environments where legacy systems may still be operational.
Mitigation strategies for CVE-2013-1259 should focus on immediate patch deployment through Microsoft Security Updates, as the vendor provided specific fixes for this race condition in their security bulletins. Organizations should implement comprehensive monitoring for suspicious privilege escalation activities and memory access patterns that could indicate exploitation attempts. System administrators should consider implementing additional security measures such as kernel-mode driver validation, application whitelisting, and restricting local user privileges where possible. The vulnerability highlights the importance of maintaining up-to-date security patches and demonstrates the critical need for regular vulnerability assessments of kernel-mode components. Security teams should also implement behavioral monitoring to detect anomalous patterns that might indicate exploitation attempts, particularly around windowing system calls and memory access operations that could be manipulated to exploit this race condition.