CVE-2021-32050 is a medium-severity vulnerability affecting certain MongoDB Drivers. This vulnerability allows some MongoDB Drivers to mistakenly publish events containing authentication-related data to a command listener configured by an application. The published events may contain security-sensitive information when specific authentication-related commands are executed.
Risk to organizations includes unauthorized exposure of sensitive data, particularly if applications log this information inadvertently. This vulnerability arises only when the command listener feature is enabled, which is not the default setting.
The issue affects multiple versions of MongoDB Drivers, including the MongoDB C Driver prior to 1.17.7, MongoDB PHP Driver prior to 1.9.2, MongoDB Swift Driver prior to 1.1.1, and various versions of MongoDB Node.js Drivers. Organizations using these drivers should take immediate action to mitigate potential risks.
Given the potential for sensitive information exposure, organizations should prioritize addressing this vulnerability in their patch cycle.
Vulnerability Details
The official description from MongoDB states: 'Some MongoDB Drivers may erroneously publish events containing authentication-related data to a command listener configured by an application. The published events may contain security-sensitive data when specific authentication-related commands are executed.'
The CVSS score for this vulnerability is 4.2, categorized as medium severity, indicating a moderate risk level for organizations. The attack vector is local, with low complexity, and requires high privileges and user interaction to exploit.
This vulnerability is classified under CWE-200 (Information Exposure) and CWE-532 (Inclusion of Sensitive Information in Log Files).
Technical Analysis
The root cause of CVE-2021-32050 is the improper handling of authentication-related events by MongoDB Drivers. When certain commands are executed, these drivers may inadvertently publish sensitive authentication data to a command listener.
This vulnerability primarily presents an attack vector over local access, meaning that an attacker would need to have some level of access to the system where the vulnerable MongoDB Driver is running. The attack complexity is low, as it does not require advanced skills to exploit once access is gained.
The exploitation of this vulnerability requires high privileges within the application context, and user interaction is necessary to trigger the affected functionality. If exploited, this vulnerability has a high impact on confidentiality, as sensitive information could be exposed.
Risk & Impact Analysis
The risk to organizations includes the potential for sensitive authentication data exposure, which can lead to unauthorized access and data breaches. Given that this vulnerability allows for the publication of sensitive information, the blast radius could be significant, especially in environments where logging is not properly managed.
Organizations should assess the impact of this vulnerability based on their deployment context and the data they handle. With a CVSS score of 4.2, organizations are advised to schedule remediation actions in their patch cycles.
The effective management of this vulnerability is critical, as failure to address it could result in serious security incidents involving sensitive data exposure.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
This vulnerability affects the following versions:
MongoDB C Driver: 1.0.0 prior to 1.17.7
MongoDB PHP Driver: 1.0.0 prior to 1.9.2
MongoDB Swift Driver: 1.0.0 prior to 1.1.1
MongoDB Node.js Driver: 3.6 prior to 3.6.10, 4.0 prior to 4.17.0, 5.0 prior to 5.8.0
Mitigation & Remediation
Organizations should prioritize patching immediately. Upgrade to the latest versions of the affected MongoDB Drivers to mitigate this vulnerability.
If upgrading is not possible, organizations should consider disabling the command listener feature in their applications until a patch can be applied.
Additionally, organizations should implement logging best practices to ensure that sensitive data is not inadvertently written to log files.
Penetration testing can also help identify any areas where sensitive information may be exposed.
Detection Guidance
Organizations should monitor log files for any signs of sensitive data exposure and review application configurations to ensure that the command listener feature is not enabled without proper safeguards.
Behavioral anomalies in log file writes should also be flagged for investigation.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2021-32050 lies in the potential for sensitive data exposure, which may lead to trust issues for organizations using MongoDB Drivers. This vulnerability exemplifies the need for robust logging practices and security configurations.
Security teams should take this opportunity to review their data handling and logging practices to reduce the risk of similar vulnerabilities in the future.
Vulnerability management programs should be updated to include routine audits of logging practices and the features enabled within applications.
Penetration testing methodologies can also assist in identifying potential vulnerabilities before they are exploited.
API security assessments should be part of the ongoing security strategy to ensure that similar vulnerabilities are addressed proactively.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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