CVE-2022-32558 in Server
Summary
by MITRE • 06/14/2022
An issue was discovered in Couchbase Server before 7.0.4. Sample bucket loading may leak internal user passwords during a failure.
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Analysis
by VulDB Data Team • 06/14/2022
The vulnerability identified as CVE-2022-32558 represents a critical information disclosure flaw within Couchbase Server versions prior to 7.0.4. This issue manifests during the sample bucket loading process when the system encounters failures, creating an unintended data leakage scenario that compromises internal user authentication credentials. The flaw specifically affects the server's error handling mechanisms during operational disruptions, where password information becomes exposed through improper logging or error reporting procedures. This vulnerability falls under the category of information disclosure as defined by common weakness enumeration standards, specifically relating to improper handling of sensitive data during error conditions. The affected Couchbase Server versions demonstrate a failure in maintaining proper security boundaries when processing sample bucket configurations, particularly when these operations do not complete successfully.
The technical implementation of this vulnerability stems from inadequate sanitization of error messages and log outputs during sample bucket loading failures. When the server processes sample bucket data and encounters operational issues, the internal user passwords become embedded within error messages or diagnostic outputs that are subsequently exposed to unauthorized parties. This occurs because the system does not properly filter or redact authentication credentials from failure-related information before it is processed or transmitted. The flaw exploits the server's insufficient validation of error content, allowing sensitive information to leak through normal operational failure pathways. Security protocols that should prevent credential exposure during system errors are either absent or improperly implemented, creating an attack surface where malicious actors can extract user authentication details through careful analysis of error conditions.
The operational impact of this vulnerability extends beyond simple credential leakage to encompass broader security implications for organizations relying on Couchbase Server for data management. When internal user passwords are exposed during failure scenarios, attackers gain access to authentication credentials that can be used for unauthorized access to database resources, potentially leading to data breaches, privilege escalation, and system compromise. The vulnerability is particularly concerning because it operates during failure conditions, which are often less monitored than normal operational states, making detection more difficult. Organizations may not immediately notice the credential exposure unless they actively monitor error logs and system diagnostics for suspicious patterns. This information disclosure threat aligns with attack patterns documented in the attack tree framework where credential theft represents a fundamental entry point for further compromise. The vulnerability can be exploited by attackers who observe system failures or who have access to system logs, creating multiple potential attack vectors for unauthorized credential acquisition.
Mitigation strategies for CVE-2022-32558 require immediate deployment of Couchbase Server version 7.0.4 or later, which includes patches addressing the improper credential handling during sample bucket loading failures. Organizations should implement comprehensive log monitoring systems to detect potential credential exposure in error messages and diagnostic outputs. Security configurations should include enhanced input validation and output sanitization procedures that prevent sensitive data from appearing in system error messages. Network segmentation and access controls should be strengthened to limit exposure even if credential leakage occurs. Regular security assessments should include verification that error handling procedures properly sanitize sensitive information, with particular attention to failure scenarios involving user authentication data. The remediation process must also consider implementing automated log analysis tools that can identify and alert on potential credential exposure patterns, ensuring that organizations can detect and respond to such incidents promptly. Additionally, system administrators should conduct regular audits of error logging configurations to ensure that authentication credentials are never exposed through normal operational failure conditions, maintaining compliance with security standards that require protection of sensitive data in all system states including error conditions.