CVE-2010-4027 in Palm webOS
Summary
by MITRE
Unspecified vulnerability in the camera application in HP Palm webOS 1.4.1 allows local users to overwrite arbitrary files via unknown vectors.
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Analysis
by VulDB Data Team • 01/07/2018
The vulnerability identified as CVE-2010-4027 represents a critical file system security flaw within the camera application of HP Palm webOS version 1.4.1. This issue falls under the category of local privilege escalation and file system manipulation, where an attacker with local access can exploit unspecified vectors to overwrite arbitrary files on the device. The camera application in webOS operates with elevated privileges, making it a prime target for exploitation that could potentially compromise the entire operating system. The unspecified nature of the vulnerability vectors suggests that the underlying flaw may involve improper input validation, insecure file handling, or inadequate permission checks within the application's file operations. This type of vulnerability is particularly dangerous in mobile environments where applications often require access to sensitive system resources and user data. The vulnerability demonstrates a fundamental weakness in the application sandboxing mechanisms of webOS, where the camera application's file operations are not properly isolated from the broader system file structure. The issue is classified under CWE-22, which describes improper limitation of a pathname to a restricted directory, indicating that the vulnerability likely involves path traversal or directory traversal attacks that allow unauthorized file access and modification.
The technical exploitation of this vulnerability involves leveraging the camera application's file handling capabilities to manipulate the file system in unintended ways. Attackers can potentially overwrite system files, configuration files, or user data through the application's interface or by directly manipulating file paths that the camera application processes. The attack surface is expanded by the fact that the camera application may be invoked through various system interfaces and could be triggered by malicious code or crafted file inputs. This vulnerability represents a classic case of insufficient input sanitization where the application fails to properly validate file paths and operations, allowing attackers to specify arbitrary file locations for overwrite operations. The exploitation process likely involves creating or manipulating file paths that bypass normal access controls and permission checks, enabling the attacker to modify files that should normally be protected from modification by regular applications. The vulnerability may also involve race conditions or improper error handling during file operations, where the application does not properly validate the existence or accessibility of target files before attempting to overwrite them.
The operational impact of CVE-2010-4027 extends beyond simple file overwrites to potentially compromise the entire device security posture. Successful exploitation could enable attackers to modify critical system files, install malicious software, or disable security features within the webOS environment. The local nature of the vulnerability means that it requires physical access or prior compromise of the device, but once exploited, it can provide persistent access to the system and potentially escalate privileges to system-level operations. This vulnerability creates a pathway for attackers to undermine the device's integrity and confidentiality, particularly since the camera application is often granted broad file system permissions to capture and store images. The impact is further amplified by the fact that webOS applications typically operate with elevated privileges and may have access to sensitive user data, system configuration files, and device-specific information. The vulnerability could be leveraged to create persistent backdoors, modify authentication mechanisms, or corrupt system files that could lead to device instability or complete compromise. This type of vulnerability is particularly concerning in mobile environments where devices often contain sensitive personal and corporate data, making the potential for data exfiltration or system manipulation significant.
Mitigation strategies for CVE-2010-4027 should focus on both immediate remediation and long-term architectural improvements to prevent similar vulnerabilities. The immediate solution involves updating the affected webOS version to a patched release that addresses the unspecified vulnerability vectors in the camera application. System administrators and device users should implement strict application permission controls and monitor for unauthorized file system modifications. The vulnerability highlights the importance of proper input validation and secure coding practices, particularly in applications that handle file system operations. Organizations should conduct thorough security assessments of all applications within the webOS environment to identify similar vulnerabilities that may exist in other system components. The implementation of proper file system access controls, including mandatory access controls and strict path validation, can help prevent unauthorized file overwrites. Additionally, regular security updates and patch management procedures should be enforced to address vulnerabilities in mobile operating systems. The vulnerability also underscores the need for comprehensive application sandboxing and privilege separation mechanisms that prevent applications from accessing system resources beyond their intended scope. Network security measures such as intrusion detection systems and file integrity monitoring can provide additional layers of protection against exploitation attempts. This vulnerability serves as a reminder of the critical importance of secure coding practices and proper security testing in mobile operating system development, particularly for applications that interact with the file system and user data.