CVE-2023-34052 in Aria Operations for Logs
Summary
by MITRE • 10/25/2023
VMware Aria Operations for Logs contains a deserialization vulnerability. A malicious actor with non-administrative access to the local system can trigger the deserialization of data which could result in authentication bypass.
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Analysis
by VulDB Data Team • 11/11/2023
The vulnerability identified as CVE-2023-34052 affects VMware Aria Operations for Logs, a comprehensive logging and monitoring solution that provides visibility into application performance and infrastructure health. This deserialization flaw represents a critical security weakness that could be exploited by attackers who have already gained access to a local system, potentially leading to unauthorized access and privilege escalation within the affected environment. The vulnerability resides within the application's data processing mechanisms where untrusted data is being deserialized without proper validation, creating an attack surface that could be leveraged for more significant compromises.
The technical nature of this vulnerability stems from improper input validation during the deserialization process, which is classified as a common weakness under CWE-502. When the system receives data that should be treated as untrusted, it attempts to deserialize this information without adequate sanitization or verification steps. This flaw allows an attacker to craft malicious payloads that, when processed by the deserialization routine, can execute arbitrary code or manipulate authentication mechanisms. The vulnerability specifically enables an attacker with non-administrative local access to potentially bypass authentication controls, effectively elevating their privileges within the system.
The operational impact of this vulnerability extends beyond simple privilege escalation, as it creates a pathway for attackers to move laterally within the network infrastructure. Once authenticated, an attacker could access sensitive log data, modify system configurations, or use the compromised system as a pivot point to target other components within the VMware ecosystem. This type of vulnerability aligns with ATT&CK technique T1078.004 which covers legitimate credentials and abuse of system privileges, and T1210 which involves exploitation of remote services through deserialization attacks. The attack vector requires local system access, which suggests that attackers may have already compromised other system components through initial access methods such as phishing, credential theft, or exploitation of other vulnerabilities.
Organizations utilizing VMware Aria Operations for Logs must implement immediate mitigations to address this vulnerability. The primary recommendation involves applying the latest security patches released by VMware, which should include fixes for the deserialization flaw. Additionally, implementing network segmentation and access controls can limit the potential impact of local system compromises. Security monitoring should be enhanced to detect unusual deserialization activities or authentication anomalies that might indicate exploitation attempts. System administrators should also consider implementing principle of least privilege access controls and regularly auditing local system access permissions to minimize the attack surface. The vulnerability demonstrates the importance of secure coding practices and input validation, particularly when handling data from external sources or user inputs that may be manipulated by malicious actors.