CVE-2024-45341 is a medium-severity vulnerability that allows a certificate with a URI containing an IPv6 address with a zone ID to improperly satisfy URI name constraints applicable to the certificate chain. This issue is particularly relevant for users of private Public Key Infrastructure (PKI) systems, as certificates containing URIs are not permitted in the web PKI. The potential exploitation of this vulnerability could lead to unauthorized access or misconfigurations in systems relying on certificate validation.
The CVSS score for this vulnerability is 6.1, indicating a medium severity level. This score reflects a low attack complexity and a requirement for user interaction, which suggests that while the risk exists, successful exploitation may require specific conditions to be met. As such, organizations utilizing private PKIs should assess their environments against this vulnerability to understand the potential impacts.
Currently, there are no known exploits for CVE-2024-45341, and it has not been classified as actively exploited in the wild. However, this does not diminish its importance; organizations should prioritize monitoring and remediation efforts in response to the potential risks associated with improper certificate handling.
Organizations should address this vulnerability in their patch management cycles. Given the medium severity and exploitability concerns, it is crucial to integrate this into routine security assessments and apply necessary updates or mitigations as they become available.
Vulnerability Details
The vulnerability is characterized by the incorrect handling of certificate URIs that incorporate IPv6 addresses with zone IDs. Such certificates may bypass URI name constraints that are essential for maintaining the integrity of the certificate chain. This vulnerability specifically affects private PKIs that may still attempt to utilize these types of certificates.
With a CVSS score of 6.1, the vulnerability is categorized as medium severity. The attack vector is network-based, and the attack complexity is low, indicating that the exploitation does not require advanced skills or resources. No privileges are required to exploit this vulnerability, but user interaction is necessary, which means an end-user must be involved in some way to trigger the vulnerability.
The vulnerability was published on January 28, 2025. There are no additional CWE classifications associated with this CVE, but it is vital for organizations to remain vigilant regarding its implications, especially if they utilize private PKI environments.
Technical Analysis
The root cause of CVE-2024-45341 stems from the acceptance of certificates containing URIs with IPv6 zone IDs, which should not be valid in a secure PKI context. Attackers may leverage this flaw by creating certificates that could improperly validate against a URI name constraint, thereby potentially allowing malicious actors to establish trust in their certificates.
The attack vector for this vulnerability is network-based, meaning it can be exploited over the network without needing physical access to the target system. The attack complexity is low, indicating that an attacker could exploit this vulnerability without significant effort. Given that no privileges are required for exploitation, any user could potentially be affected if they interact with the compromised certificate.
User interaction is required for the exploitation to occur, as an end-user must utilize the certificate in question. The impacts on confidentiality and integrity are classified as low, meaning sensitive data may be exposed or altered, but the overall availability of systems remains unaffected.
Risk & Impact Analysis
Organizations that rely on private PKIs and utilize certificates containing URIs with IPv6 addresses should be aware of the potential risks posed by CVE-2024-45341. The improper validation of these certificates could lead to various security implications, including unauthorized access or miscommunication between systems relying on these certificates for trust.
The urgency for addressing this vulnerability is moderate, as its exploitation does require user interaction. Nonetheless, organizations should schedule remediation efforts promptly to mitigate any potential risks associated with this vulnerability. Monitoring for any signs of exploitation should be a priority for security teams.
The blast radius of this vulnerability is limited primarily to users of private PKIs, but it could potentially affect any organization that may inadvertently accept these improperly validated certificates. Therefore, a thorough assessment of certificate policies and practices is recommended to ensure compliance with best security practices.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
As of now, there are no specified affected versions or products associated with CVE-2024-45341. Organizations should note that this vulnerability applies to all versions of private PKIs that may improperly utilize certificates with URIs containing IPv6 addresses with zone IDs.
Mitigation & Remediation
To mitigate the risks associated with CVE-2024-45341, organizations should review their PKI policies to ensure that certificates containing URIs are not permitted. Implementing strict validation checks on certificates can prevent the acceptance of potentially malicious certificates that could exploit this vulnerability.
Organizations are encouraged to apply any forthcoming patches or updates related to this vulnerability as soon as they are available. If patches cannot be applied immediately, consider implementing workarounds such as restricting the issuance of certificates with URI fields.
Monitoring for unusual certificate behavior and conducting regular audits of certificate usage can help identify potential misuse and mitigate risks. For further guidance, organizations may look into penetration testing to evaluate their PKI configurations.
Detection Guidance
Organizations should monitor logs for any anomalies related to certificate validation processes. Key indicators may include unexpected acceptance of certificates with URIs containing IPv6 addresses. Behavioral anomalies, such as unusual user interactions with certificate management systems, should also be flagged for further investigation.
Regular audits of certificate usage and validation paths can help identify potential exploitation of this vulnerability. Implementing network signatures that alert on the usage of unauthorized certificates can enhance detection capabilities.
AppSecure Threat Intelligence Insight
CVE-2024-45341 highlights a critical aspect of PKI management and certificate validation. The ability for certificates with IPv6 addresses to bypass URI constraints underscores the importance of rigorous validation checks within PKIs. Organizations should take this opportunity to reevaluate their PKI practices and ensure that they are aligned with current security standards.
Security teams should also consider the trend of vulnerabilities centered around certificate handling and validation, as improper implementations can lead to significant security ramifications. For strategic defensive takeaways, organizations may wish to explore resources on vulnerability management programs and the importance of maintaining an updated security posture.
Additionally, organizations should leverage insights from penetration testing methodologies to enhance their defenses against potential certificate-related vulnerabilities.
Finally, organizations should remain vigilant in monitoring for emerging threats and vulnerabilities that could exploit weaknesses similar to CVE-2024-45341.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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