CVE-2024-8305 is a medium-severity vulnerability affecting MongoDB Server that allows for secondary crashes due to incorrect enforcement of index constraints. This issue may escalate to multiple secondary instances crashing, leading to a scenario where there are no primary nodes available. The vulnerability affects MongoDB Server versions 6.0 prior to 6.0.17, 7.0 prior to 7.0.13, and 7.3 prior to 7.3.4. Given the potential impact on availability, this vulnerability poses a significant risk to organizations relying on MongoDB for critical operations.
The vulnerability has a CVSS score of 6.5, categorizing it as medium severity. The attack vector is network-based, with low complexity and low privileges required for exploitation. Importantly, user interaction is not necessary for an attack to be successful. The primary impact of this vulnerability lies in the availability of the affected systems, which could be severely compromised during exploitation.
Exploitation of this vulnerability can lead to significant operational disruptions, affecting the performance and reliability of MongoDB deployments. Organizations should be aware that this vulnerability does not have any known public exploits, but the potential for impact is serious enough to warrant immediate attention and response.
Organizations should prioritize patching immediately. By updating to the latest versions of MongoDB Server, users can mitigate the risks associated with CVE-2024-8305 and ensure the continued availability of their databases.
Vulnerability Details
The official description of CVE-2024-8305 states that the prepareUnique index may cause secondary nodes to crash due to incorrect enforcement of index constraints. In extreme cases, this may lead to multiple secondary nodes crashing, resulting in no primary nodes being available. The vulnerability affects MongoDB Server versions as follows: v6.0 versions prior to 6.0.17, v7.0 versions prior to 7.0.13, and v7.3 versions prior to 7.3.4.
The CVSS score for this vulnerability is 6.5, indicating medium severity. The attack vector is network-based (AV:N), the attack complexity is low (AC:L), and it requires low privileges (PR:L) without any user interaction (UI:N). The scope of the vulnerability remains unchanged (S:U), with no confidentiality (C:N) or integrity impact (I:N), but with high availability impact (A:H).
The vulnerability is classified under CWE-1288, indicating issues related to improper enforcement of constraints in software.
Technical Analysis
The root cause of CVE-2024-8305 lies in the incorrect enforcement of index constraints on secondary nodes in MongoDB. This misconfiguration can lead to a situation where secondary nodes become unavailable, which can cascade into failures across the database cluster, particularly if multiple secondaries crash simultaneously.
The attack vector for this vulnerability is network-based, meaning that an attacker could potentially exploit this flaw remotely. The complexity of the attack is low, and it requires only low privileges to exploit. Importantly, there is no user interaction required for the exploitation to occur, making it a particularly concerning vulnerability.
The impact on availability is high, as the crashing of secondary nodes can prevent the system from functioning correctly, jeopardizing the database's reliability. Organizations using MongoDB should ensure that their configurations protect against this type of failure.
Risk & Impact Analysis
The real-world deployment risk associated with CVE-2024-8305 is significant. Organizations relying on MongoDB for critical services could face operational downtime if secondary nodes crash. This vulnerability is particularly impactful in environments where high availability is a priority, as it could lead to complete service outages if not addressed swiftly.
Risk to organizations includes potential loss of data availability and degradation of service, which can have cascading effects on operations. The urgency for organizations to address this vulnerability is high given its availability impact. Organizations should prioritize patching to prevent exploitation and ensure continuous availability of their MongoDB instances.
The CVSS score of 6.5 indicates that this vulnerability should be treated with medium urgency in the patch cycle. Given that it is not included in the KEV catalog, organizations must take proactive measures to mitigate the risk.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions for CVE-2024-8305 include MongoDB Server v6.0 versions prior to 6.0.17, v7.0 versions prior to 7.0.13, and v7.3 versions prior to 7.3.4. Organizations should ensure they are running the latest versions to mitigate this vulnerability.
Mitigation & Remediation
To mitigate CVE-2024-8305, organizations should apply the latest patches to MongoDB Server. Specifically, upgrade to MongoDB Server v6.0.17 or later, v7.0.13 or later, and v7.3.4 or later. If immediate patching is not possible, consider implementing configuration hardening to reduce the risk of secondary crashes.
Organizations may also implement network controls to restrict access to MongoDB instances and monitor for any anomalies that could indicate attempts to exploit this vulnerability. Additionally, conducting regular security assessments can help identify and remediate weaknesses in the environment.
Penetration testing can also be a valuable tool for organizations to validate their security posture and identify any remaining vulnerabilities.
Detection Guidance
Organizations should monitor logs for unusual patterns or errors that may indicate instances of the prepareUnique index failing. Additionally, keeping an eye on system availability and performance metrics can help detect anomalies that could be related to this vulnerability.
Behavioral anomalies in database access patterns should also be tracked, as they may signal attempts to exploit this or similar vulnerabilities.
AppSecure Threat Intelligence Insight
Long-term, CVE-2024-8305 highlights the critical importance of ensuring that database configurations are properly enforced to prevent operational disruptions. This incident serves as a reminder for organizations to adopt robust database management practices.
The trend of vulnerabilities leading to availability issues is on the rise, emphasizing the need for organizations to prioritize availability in their security strategies. Regular audits and assessments can help in identifying such vulnerabilities before they are exploited.
Organizations should also consider leveraging strategic insights from threat intelligence to bolster their defenses against potential exploits. Implementing processes for continuous monitoring and evaluation can enhance resilience against similar vulnerabilities.
Vulnerability management programs that integrate threat intelligence can provide a proactive stance in mitigating risks associated with vulnerabilities such as CVE-2024-8305.
Finally, organizations are encouraged to stay abreast of the latest trends in vulnerabilities and security practices to maintain a robust security posture.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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