CVE-2018-0042 in CSO
Summary
by MITRE
Juniper Networks CSO versions prior to 4.0.0 may log passwords in log files leading to an information disclosure vulnerability.
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Analysis
by VulDB Data Team • 03/04/2020
The vulnerability identified as CVE-2018-0042 affects Juniper Networks Cloud Security Orchestrator (CSO) versions prior to 4.0.0, representing a critical information disclosure flaw that compromises system security through improper logging practices. This vulnerability stems from the software's failure to adequately sanitize sensitive authentication credentials before writing them to log files, creating an attack surface that could be exploited by unauthorized parties with access to system logs. The issue directly impacts the confidentiality and integrity of authentication mechanisms within the security orchestration platform, potentially exposing administrative credentials and user authentication tokens to malicious actors.
The technical implementation flaw occurs within the logging subsystem of the CSO platform where password credentials are written to log files without proper obfuscation or masking procedures. This design oversight allows authentication information to persist in plaintext within system logs, making it accessible to any user or process with read permissions to the log directories. The vulnerability manifests when administrative actions or user authentication events are recorded, with passwords being captured and stored in clear text format alongside other operational data. This represents a direct violation of secure coding practices and configuration management standards, as sensitive information should never be logged in an unencrypted format regardless of system access controls.
The operational impact of this vulnerability extends beyond simple credential exposure, as it enables attackers to potentially escalate privileges and gain unauthorized access to the entire security orchestration platform. Once credentials are extracted from log files, malicious actors can impersonate legitimate users and administrators, potentially compromising the integrity of security policies and access controls managed by the CSO system. The vulnerability also affects the broader security ecosystem by undermining trust in the logging infrastructure and potentially exposing other interconnected systems that rely on the CSO platform for security orchestration and monitoring functions. This information disclosure could facilitate further attacks including lateral movement, privilege escalation, and persistent access to sensitive network infrastructure.
Mitigation strategies for CVE-2018-0042 require immediate implementation of configuration changes to disable or modify password logging behavior within the CSO platform. Organizations should upgrade to CSO version 4.0.0 or later where the vulnerability has been addressed through proper credential sanitization in logging processes. System administrators must conduct comprehensive log file audits to identify and remove any previously exposed credentials, while implementing strict access controls on log directories to prevent unauthorized access. The remediation process should include configuration of log rotation policies, implementation of centralized logging with proper credential filtering, and establishment of monitoring procedures to detect potential credential exposure incidents. This vulnerability aligns with CWE-532, which addresses information exposure through logging, and corresponds to ATT&CK technique T1070.001 for indicator removal through log manipulation, emphasizing the critical need for proper log management practices and credential protection mechanisms.
The vulnerability demonstrates the importance of secure logging practices in enterprise security platforms and highlights the potential for seemingly minor configuration oversights to create significant security risks. Organizations utilizing Juniper CSO or similar security orchestration platforms must implement comprehensive security controls including regular vulnerability assessments, log management reviews, and credential protection measures to prevent similar information disclosure scenarios. The incident underscores the necessity of applying security patches promptly and maintaining robust configuration management processes to protect against credential exposure through system logging mechanisms.