CVE-2024-7595 is a medium-severity vulnerability that affects the Generic Routing Encapsulation (GRE) and GRE6 protocols as specified in RFC 2784. This vulnerability allows an attacker to spoof and route arbitrary traffic through an exposed network interface without validating or verifying the source of network packets. As a result, this weakness can lead to spoofing, access control bypass, and other unexpected network behaviors.
The CVSS score for this vulnerability is 6.5, indicating a medium level of severity. The high attack complexity, coupled with the potential for low confidentiality, integrity, and availability impacts, underscores the need for organizations to address this vulnerability promptly.
This vulnerability is particularly concerning for organizations that utilize GRE protocols for tunneling network traffic, as it exposes them to various attack vectors. Attackers may leverage this vulnerability to disrupt services or gain unauthorized access to sensitive information. Therefore, organizations should prioritize remediation efforts to mitigate these risks.
Currently, there is known exploit availability, which heightens the urgency for organizations to implement mitigations. Effective patching and updates are critical to prevent potential exploitation.
Vulnerability Details
The GRE and GRE6 protocols, as detailed in RFC 2784, do not adequately validate or verify the source of network packets. This oversight allows attackers to send spoofed packets, creating opportunities for them to manipulate traffic flows and bypass access controls. The vulnerability is classified under CVSS 3.1 with a base score of 6.5, reflecting the medium severity of the issue.
The affected products include 'generic_routing_encapsulation' and 'generic_routing_encapsulation6'. The vulnerability was published on February 5, 2025, and is currently marked as modified.
Technical Analysis
The root cause of CVE-2024-7595 stems from the lack of validation on the source of packets within the GRE protocols. This vulnerability has a network attack vector, with high attack complexity, and does not require any privileges for exploitation, nor does it necessitate user interaction. The potential impacts include low confidentiality, integrity, and availability.
Risk & Impact Analysis
Organizations that deploy GRE or GRE6 protocols face significant risk due to this vulnerability. The ability for attackers to spoof traffic could lead to unauthorized access, resulting in data breaches and loss of integrity within network communications. Furthermore, the blast radius could be extensive, affecting not only individual systems but also network-wide operations.
Given the CVSS score of 6.5, organizations should assess this vulnerability as a medium priority. Organizations should address this vulnerability in their patch cycle to mitigate potential exploitation and the associated risks.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions include all versions of the 'generic_routing_encapsulation' and 'generic_routing_encapsulation6' components prior to vendor patches. Organizations should verify their deployments to identify any vulnerable instances.
Mitigation & Remediation
To mitigate this vulnerability, organizations should apply the latest patches and updates to the affected GRE protocols. If immediate patching is not feasible, consider implementing network controls to limit exposure and monitor traffic for anomalies. Additionally, organizations may benefit from conducting penetration testing to validate the effectiveness of their security measures. For further guidance on effective testing strategies, refer to our penetration testing services that can help identify weaknesses in their configurations.
Detection Guidance
Organizations should monitor logs for any suspicious packet activity relating to GRE and GRE6 protocols. Behavioral anomalies, such as unexpected traffic patterns or unauthorized access attempts, should be flagged for further analysis. Network signatures can also be implemented to detect potential exploitation attempts.
AppSecure Threat Intelligence Insight
CVE-2024-7595 represents a significant concern for network security teams due to the ease with which attackers can exploit this vulnerability. The lack of validation in GRE protocols highlights a critical gap in security practices that must be addressed. Organizations are encouraged to adopt a proactive approach by integrating risk assessments and vulnerability management into their security strategies.
For further information on managing vulnerabilities, organizations can refer to our comprehensive guide on vulnerability management programs and how to implement effective security measures across their networks.
Furthermore, it is critical to understand the impact of this vulnerability in the context of broader industry trends. For insights into the evolving threat landscape, organizations should consider reviewing our latest report on vulnerability exposure trends which can assist in contextualizing their risk assessments and mitigation strategies.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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