CVE-2022-28167 in SANnav
Summary
by MITRE • 06/27/2022
Brocade SANnav before Brocade SANvav v. 2.2.0.2 and Brocade SANanv v.2.1.1.8 logs the Brocade Fabric OS switch password in plain text in asyncjobscheduler-manager.log
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Analysis
by VulDB Data Team • 07/15/2022
The vulnerability identified as CVE-2022-28167 affects Brocade SANnav software versions prior to 2.2.0.2 and 2.1.1.8, representing a critical security flaw in storage area network management systems. This issue manifests through improper logging practices where administrative credentials are stored in plaintext within the asyncjobscheduler-manager.log file, creating a significant exposure point for unauthorized access to network infrastructure. The flaw directly impacts the security posture of enterprise storage environments by potentially exposing sensitive authentication information to attackers who gain access to system logs or administrative privileges.
The technical implementation of this vulnerability stems from the application's logging mechanism failing to properly sanitize or encrypt sensitive data before writing it to log files. When Brocade Fabric OS switch passwords are processed through the asyncjobscheduler-manager.log component, they are written in their original plaintext format without any form of cryptographic protection or obfuscation. This behavior violates fundamental security principles for credential handling and log management, as it creates persistent storage of sensitive information in an easily accessible format. The vulnerability is categorized under CWE-546 which specifically addresses the presence of sensitive data in log files, and aligns with ATT&CK technique T1562.001 related to disabling or modifying tools.
The operational impact of this vulnerability extends beyond simple credential theft, as it enables attackers to potentially gain full administrative control over Brocade Fabric OS switches within the network. An attacker who can access the asyncjobscheduler-manager.log file gains immediate access to switch passwords, allowing for unauthorized network access, configuration changes, and potential data exfiltration. This exposure is particularly dangerous in enterprise environments where SAN switches control access to critical storage resources and where the compromise of switch credentials can lead to complete network infiltration. The vulnerability affects organizations using legacy Brocade SANnav implementations, creating a persistent threat vector that remains active until the software is properly updated.
Organizations should immediately implement multiple mitigation strategies to address this vulnerability. The primary recommendation involves upgrading to Brocade SANnav versions 2.2.0.2 or 2.1.1.8, which contain the necessary patches to prevent plaintext credential logging. Additionally, system administrators should implement strict log access controls and monitoring procedures to detect unauthorized access attempts to log files. Network segmentation and privilege separation should be enforced to limit the potential impact of credential exposure. Security teams should also conduct comprehensive log reviews to identify any potential exploitation attempts and implement file integrity monitoring solutions to detect unauthorized modifications to log files. The vulnerability highlights the importance of proper information security practices in network management systems and underscores the necessity of adhering to security standards such as those outlined in NIST SP 800-53 and ISO 27001 for secure configuration management.