CVE-2019-3484 in Arcsight Logger
Summary
by MITRE
Mitigates a remote code execution issue in ArcSight Logger versions prior to 6.7.
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Analysis
by VulDB Data Team • 08/07/2023
The vulnerability identified as CVE-2019-3484 represents a critical remote code execution flaw within ArcSight Logger software versions prior to 6.7. This issue affects organizations relying on the ArcSight Logger for security information and event management (SIEM) capabilities, potentially exposing their network infrastructure to unauthorized remote access and control. The vulnerability stems from insufficient input validation mechanisms within the application's processing pipeline, creating an exploitable condition that allows attackers to execute arbitrary code on the target system. The flaw specifically manifests in how the software handles certain data inputs, particularly those related to log processing and parsing operations, where malformed payloads can trigger unexpected code execution paths. This vulnerability aligns with CWE-74 and CWE-77 respectively, representing weaknesses in input validation and code injection techniques that enable attackers to manipulate application behavior through crafted inputs. From an operational perspective, the impact of this vulnerability extends beyond simple data compromise, as successful exploitation can lead to complete system takeover, persistent backdoor installation, and lateral movement within the network environment. The attack surface is particularly concerning given that ArcSight Logger systems often operate in privileged network segments and may have access to sensitive security event data, making them attractive targets for adversaries seeking long-term access to organizational infrastructure. The vulnerability's remote exploitability means that attackers can potentially leverage this flaw from outside the network perimeter without requiring prior authentication or physical access to the affected systems. This characteristic places organizations at significant risk of unauthorized access and data exfiltration, especially when the affected systems are exposed to public networks or lack proper network segmentation controls. The exploitation process typically involves crafting malicious input payloads that bypass existing security controls and trigger the vulnerable code path within the ArcSight Logger application, potentially allowing attackers to execute commands with the privileges of the affected service account. Organizations utilizing affected versions of ArcSight Logger should immediately implement mitigations including applying the vendor-provided security patches, implementing network segmentation to limit access to these systems, and deploying additional monitoring controls to detect potential exploitation attempts. The remediation strategy should also include comprehensive vulnerability assessments to identify any other systems that might be running vulnerable versions of the software, as well as implementing proper access controls and privilege management to minimize the potential impact of successful exploitation. This vulnerability demonstrates the critical importance of maintaining up-to-date security software and implementing robust patch management processes to protect against known exploits in security infrastructure components.
The technical exploitation of CVE-2019-3484 follows patterns consistent with remote code execution vulnerabilities in enterprise security tools, where input validation failures create pathways for attackers to inject malicious code into running processes. The vulnerability operates at the application layer and requires no specialized privileges for initial access, making it particularly dangerous in environments where ArcSight Logger systems are not adequately protected by network controls. From a threat actor perspective, this vulnerability aligns with ATT&CK technique T1059 which covers command and scripting interpreter usage, as successful exploitation would likely involve executing commands on the compromised system. The attack chain typically begins with reconnaissance to identify vulnerable systems, followed by crafting and delivery of malicious payloads designed to trigger the input validation bypass. Organizations should consider implementing intrusion detection systems that can identify suspicious patterns in log data processing activities, as these systems may generate anomalous behavior that could indicate exploitation attempts. The remediation process should also include reviewing existing security controls to ensure that proper network segmentation and access controls are in place to limit the potential blast radius of successful attacks. Additionally, implementing proper monitoring and alerting mechanisms specifically designed to detect exploitation attempts against known vulnerabilities in SIEM systems can provide early warning capabilities for security teams. The vulnerability underscores the importance of maintaining comprehensive visibility into security tool operations and ensuring that all components within the security infrastructure receive regular updates and patches.
Organizations should prioritize the immediate deployment of the vendor patch for ArcSight Logger version 6.7 or later, as this represents the most effective mitigation against CVE-2019-3484. The patch addresses the underlying input validation issues that enable remote code execution, thereby eliminating the attack vector that adversaries could exploit to gain unauthorized access to systems. Security teams must also conduct thorough risk assessments to identify all instances of vulnerable ArcSight Logger installations within their environment, as these systems may be exposed to various attack surfaces and potentially compromised through other vulnerabilities. The vulnerability's impact is compounded by the fact that ArcSight Logger systems typically process sensitive security event data and may have elevated privileges, making successful exploitation particularly damaging to organizational security posture. Network segmentation controls should be implemented to limit access to these systems, ensuring that only authorized personnel and necessary services can communicate with vulnerable components. The implementation of proper access controls and privilege management is crucial, as it reduces the potential impact of successful exploitation by limiting the privileges available to attackers who might compromise these systems. Organizations should also consider implementing additional security monitoring and detection capabilities specifically designed to identify exploitation attempts against known vulnerabilities in security infrastructure components. These monitoring solutions should be capable of detecting anomalous behavior patterns in log processing activities and alert security teams to potential compromise of ArcSight Logger systems. Regular vulnerability scanning and penetration testing should be conducted to ensure that all security infrastructure components remain protected against similar vulnerabilities and that patch management processes are functioning effectively to prevent future exploitation attempts.