CVE-2018-7801 in Parking
Summary
by MITRE
A Code Injection vulnerability exists in EVLink Parking, v3.2.0-12_v1 and earlier, which could enable access with maximum privileges when a remote code execution is performed.
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Analysis
by VulDB Data Team • 04/24/2020
The CVE-2018-7801 vulnerability represents a critical code injection flaw within EVLink Parking software version 3.2.0-12_v1 and earlier releases. This vulnerability stems from inadequate input validation and sanitization mechanisms within the application's code execution pathways, creating an exploitable condition where malicious actors can inject arbitrary code into the system. The flaw specifically manifests when the application processes user-supplied data without proper sanitization, allowing attackers to manipulate the execution flow and potentially gain unauthorized access with elevated privileges.
The technical implementation of this vulnerability involves the application's failure to properly validate and sanitize inputs that are subsequently used in code execution contexts. This weakness creates a direct pathway for remote code execution attacks where attackers can craft malicious inputs that bypass normal security controls. The vulnerability operates at the application layer and can be exploited through network-based attacks without requiring local system access or authentication. The code injection occurs when user-provided parameters are directly incorporated into executable code segments, enabling attackers to execute arbitrary commands on the target system with the privileges of the affected application.
From an operational impact perspective, this vulnerability poses significant risks to organizations using EVLink Parking systems, particularly those managing critical infrastructure or sensitive data. The ability to achieve maximum privileges through remote code execution means that attackers can potentially compromise entire network segments, access sensitive information, modify system configurations, or establish persistent backdoors. The vulnerability affects the integrity and availability of the parking management system, potentially disrupting operations and creating unauthorized access points that could be leveraged for further attacks. Organizations relying on these systems face potential financial losses, regulatory compliance issues, and reputational damage from such security breaches.
Mitigation strategies for CVE-2018-7801 should prioritize immediate patch deployment from the vendor to address the underlying code injection vulnerability. Organizations should implement comprehensive input validation mechanisms that sanitize all user-supplied data before processing, following established security practices such as parameterized queries and input filtering. Network segmentation and access controls should be strengthened to limit potential attack surfaces, while monitoring systems should be enhanced to detect anomalous code execution patterns. The vulnerability aligns with CWE-94, which describes "Improper Control of Generation of Code," and maps to ATT&CK technique T1059 for command and script injection. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in the application's codebase, while implementing web application firewalls and runtime application self-protection mechanisms can provide additional defense layers against exploitation attempts.