CVE-2002-1281 in KDE
Summary
by MITRE
Unknown vulnerability in the rlogin KIO subsystem (rlogin.protocol) of KDE 2.x 2.1 and later, and KDE 3.x 3.0.4 and earlier, allows local and remote attackers to execute arbitrary code via a certain URL.
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Analysis
by VulDB Data Team • 10/27/2024
The vulnerability identified as CVE-2002-1281 represents a critical security flaw within the KDE desktop environment's KIO (KDE Input/Output) subsystem, specifically affecting the rlogin protocol handler. This issue manifests in KDE versions 2.1 through 2.x and 3.0.4 and earlier, where the rlogin KIO protocol implementation contains a buffer overflow or similar memory corruption vulnerability that can be exploited by both local and remote attackers. The vulnerability is particularly concerning because it leverages URL handling mechanisms within the KIO subsystem, allowing attackers to craft malicious URLs that trigger the exploitable condition when processed by the affected KDE components.
The technical implementation of this vulnerability stems from inadequate input validation and memory management within the rlogin protocol handler of KDE's KIO framework. When a malicious URL containing specially crafted parameters is processed by the affected KDE versions, the system fails to properly validate the input length or structure before passing it to underlying network functions or protocol parsing routines. This lack of proper bounds checking creates an opportunity for attackers to overflow buffers or manipulate memory structures, ultimately leading to arbitrary code execution privileges. The vulnerability is classified under CWE-121 as a stack-based buffer overflow, which represents a fundamental flaw in memory management where data written to a buffer exceeds the allocated memory space.
The operational impact of CVE-2002-1281 extends beyond simple privilege escalation to encompass complete system compromise capabilities. Local attackers can exploit this vulnerability to gain elevated privileges on the target system, while remote attackers can leverage it through network-based attacks that require only the victim to access a malicious URL. This makes the vulnerability particularly dangerous in environments where users frequently interact with web content or network resources, as the attack vector can be delivered through simple web browsing or file sharing activities. The vulnerability affects the core desktop environment functionality, potentially allowing attackers to execute malicious code with the privileges of the user running the KDE session, which could include administrative access in many configurations.
Mitigation strategies for this vulnerability require immediate attention through patching and system hardening measures. Organizations should prioritize updating to patched versions of KDE that address the buffer overflow conditions in the rlogin KIO subsystem, typically requiring updates to KDE 3.0.5 or later versions where the vulnerability has been resolved. System administrators should also implement network segmentation and access controls to limit exposure of affected systems, while monitoring for suspicious network traffic patterns that might indicate exploitation attempts. Additionally, users should be educated about the risks of accessing untrusted URLs and the importance of keeping their desktop environments updated. The vulnerability aligns with ATT&CK technique T1059.007 for command and scripting interpreter, as exploitation typically involves executing arbitrary code through the compromised KIO subsystem, and T1210 for exploitation of remote services, given the network-based attack vectors available through URL handling mechanisms.