CVE-2010-3222 in Windows
Summary
by MITRE
Stack-based buffer overflow in the Remote Procedure Call Subsystem (RPCSS) in Microsoft Windows XP SP2 and SP3 and Server 2003 SP2 allows local users to gain privileges via a crafted LPC message that requests an LRPC connection from an LPC server to a client, aka "LPC Message Buffer Overrun Vulnerability."
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Analysis
by VulDB Data Team • 01/21/2025
The CVE-2010-3222 vulnerability represents a critical stack-based buffer overflow within the Remote Procedure Call Subsystem (RPCSS) component of Microsoft Windows operating systems. This flaw exists in Windows XP Service Pack 2 and 3, as well as Windows Server 2003 Service Pack 2, making it particularly concerning given the widespread deployment of these systems. The vulnerability specifically targets the LPC (Local Procedure Call) message handling mechanism, which serves as a fundamental communication pathway between processes within the Windows operating system. The flaw manifests when a malicious LPC message is crafted to request an LRPC (Local Remote Procedure Call) connection from an LPC server to a client, creating a scenario where the system fails to properly validate input data before copying it into fixed-size stack buffers.
The technical exploitation of this vulnerability occurs through the manipulation of LPC message structures that are processed by the RPCSS service. When the system receives a specially crafted LPC message containing oversized data, the buffer overflow occurs during the message processing routine, potentially allowing an attacker to overwrite adjacent memory locations on the stack. This memory corruption can lead to arbitrary code execution with elevated privileges, as the RPCSS service typically runs with high privileges within the Windows security context. The vulnerability's classification as a stack-based buffer overflow aligns with CWE-121, which specifically addresses stack-based buffer overflow conditions where insufficient bounds checking allows attackers to overwrite stack data. The attack vector is particularly insidious because it requires only local user access, meaning that an attacker with low-privilege credentials on a target system can potentially escalate their privileges to SYSTEM level.
The operational impact of this vulnerability extends beyond simple privilege escalation, as it represents a foundational security weakness that can be leveraged for broader compromise of Windows systems. The RPCSS service is critical to Windows functionality, handling numerous inter-process communications and system management tasks, making exploitation potentially devastating for system integrity. Attackers can utilize this vulnerability to execute malicious code with the highest system privileges, potentially gaining complete control over affected systems. The vulnerability's presence in widely deployed versions of Windows XP and Server 2003 means that numerous systems across enterprise and government networks remained exposed to exploitation, particularly given that these operating systems were still in use despite their end-of-life status. This scenario aligns with ATT&CK technique T1068, which covers "Local Privilege Escalation" through exploitation of system vulnerabilities, and T1059, which covers "Command and Scripting Interpreter" as attackers may use the elevated privileges to execute further malicious commands.
Mitigation strategies for CVE-2010-3222 primarily focus on the immediate deployment of Microsoft security patches, which address the underlying buffer overflow condition in the RPCSS service. System administrators should prioritize patching affected Windows systems with the relevant security updates, as these patches implement proper bounds checking and input validation for LPC message processing. Additionally, implementing network segmentation and access controls can help limit the potential impact of exploitation by restricting local access to systems. The vulnerability's local attack requirement means that network-based exploitation is not possible, but the privilege escalation aspect makes it particularly dangerous in environments where local access is commonly granted. Organizations should also consider implementing runtime protections such as DEP (Data Execution Prevention) and ASLR (Address Space Layout Randomization) to make exploitation more difficult, though these protections alone cannot prevent the buffer overflow from occurring. The vulnerability serves as a reminder of the importance of maintaining up-to-date security patches and the critical nature of protecting systems against local privilege escalation attacks that can lead to complete system compromise.