CVE-2022-28161 in SANNav
Summary
by MITRE • 05/09/2022
An information exposure through log file vulnerability in Brocade SANNav versions before Brocade SANnav 2.2.0 could allow an authenticated, local attacker to view sensitive information such as ssh passwords in filetansfer.log in debug mode. To exploit this vulnerability, the attacker would need to have valid user credentials and turn on debug mode.
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Analysis
by VulDB Data Team • 05/12/2022
The vulnerability identified as CVE-2022-28161 represents a critical information exposure flaw within Brocade SANNav software versions prior to 2.2.0. This security weakness manifests through improper handling of sensitive data within log files, specifically the filetansfer.log file that operates in debug mode. The vulnerability creates a pathway for authenticated local attackers to access confidential information including ssh passwords that are inadvertently logged during file transfer operations. This type of information exposure falls under the CWE-200 category of "Information Exposure" and represents a significant security risk within storage network management environments where privileged access is required.
The technical exploitation of this vulnerability requires an attacker to possess valid user credentials and to actively enable debug mode within the Brocade SANNav application. When debug mode is activated, the application logs detailed operational information including authentication credentials and session data to the filetansfer.log file. This logging behavior exposes sensitive ssh passwords and other potentially compromising information to local users who can access these log files. The vulnerability demonstrates poor security practices in log management and credential handling, where sensitive data is not properly sanitized or protected within debug output mechanisms. The attack vector is classified as local privilege escalation through information disclosure, aligning with ATT&CK technique T1083 for discovering system information and T1552 for unsecured credentials.
The operational impact of this vulnerability extends beyond simple credential theft, as it compromises the integrity of the entire storage network management infrastructure. Attackers who successfully exploit this vulnerability can gain unauthorized access to storage network resources through stolen ssh credentials, potentially leading to data breaches, unauthorized system modifications, or lateral movement within the network. The vulnerability particularly affects organizations using older versions of Brocade SANNav where debug functionality might be enabled for troubleshooting purposes, creating an inadvertent security risk. Organizations that maintain multiple storage management interfaces or those with less stringent access controls may find this vulnerability particularly dangerous as it provides a direct path to elevated privileges through credential exposure.
Mitigation strategies for CVE-2022-28161 should focus on immediate software updates to Brocade SANNav version 2.2.0 or later, which contain patches addressing the improper log handling behavior. System administrators should disable debug mode in production environments and implement strict access controls for log files containing sensitive information. Organizations should establish comprehensive log management policies that include regular log file audits, credential sanitization procedures, and monitoring for unauthorized access attempts to sensitive system files. The implementation of principle of least privilege access controls and regular security assessments can help prevent exploitation of similar vulnerabilities. Additionally, security teams should consider implementing file integrity monitoring solutions to detect unauthorized modifications to log files and establish incident response procedures specifically addressing information exposure vulnerabilities.