Description
There is a buffer overflow vulnerability in the underlying SAE (Simultaneous Authentication of Equals) service that could lead to unauthenticated remote code execution by sending specially crafted packets destined to the PAPI (Aruba's Access Point management protocol) UDP port (8211). Successful exploitation of this vulnerability results in the ability to execute arbitrary code as a privileged user on the underlying operating system.
EPSS Score:
1%
Comprehensive Technical Analysis of EUVD-2024-29350
1. Vulnerability Assessment and Severity Evaluation
The vulnerability described in EUVD-2024-29350 is a buffer overflow in the SAE (Simultaneous Authentication of Equals) service, which can be exploited to achieve unauthenticated remote code execution. The vulnerability is rated with a CVSS base score of 9.8, indicating a critical severity level. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H breaks down as follows:
- Attack Vector (AV): Network (N) - The vulnerability is exploitable over the network.
- Attack Complexity (AC): Low (L) - The attack requires minimal complexity.
- Privileges Required (PR): None (N) - No privileges are required to exploit the vulnerability.
- User Interaction (UI): None (N) - No user interaction is required.
- Scope (S): Unchanged (U) - The vulnerability does not change the security scope.
- Confidentiality (C): High (H) - Successful exploitation results in high confidentiality impact.
- Integrity (I): High (H) - Successful exploitation results in high integrity impact.
- Availability (A): High (H) - Successful exploitation results in high availability impact.
Given the high scores in confidentiality, integrity, and availability, this vulnerability poses a significant risk to affected systems.
2. Potential Attack Vectors and Exploitation Methods
The primary attack vector involves sending specially crafted packets to the PAPI (Aruba's Access Point management protocol) UDP port (8211). An attacker can exploit this vulnerability by:
- Network Scanning: Identifying devices with the vulnerable service running.
- Crafting Malicious Packets: Creating packets designed to trigger the buffer overflow.
- Remote Code Execution: Executing arbitrary code with privileged access on the underlying operating system.
3. Affected Systems and Software Versions
The vulnerability affects multiple versions of Aruba InstantOS and Aruba Access Points running ArubaOS 10:
- InstantOS or ArubaOS 10.4.x.x: Versions 10.4.1.0 and below.
- InstantOS or ArubaOS 8.6.x.x: Versions 8.6.0.23 and below.
- InstantOS or ArubaOS 8.11.x.x: Versions 8.11.2.1 and below.
- InstantOS or ArubaOS 8.10.x.x: Versions 8.10.0.10 and below.
- InstantOS or ArubaOS 10.5.x.x: Versions 10.5.1.0 and below.
4. Recommended Mitigation Strategies
To mitigate the risk associated with this vulnerability, the following strategies are recommended:
- Patch Management: Apply the latest patches and updates provided by Hewlett Packard Enterprise (HPE) for the affected versions of Aruba InstantOS and ArubaOS.
- Network Segmentation: Implement network segmentation to isolate vulnerable devices from untrusted networks.
- Firewall Rules: Configure firewalls to restrict access to the PAPI UDP port (8211) to only trusted sources.
- Intrusion Detection Systems (IDS): Deploy IDS to monitor for suspicious network traffic targeting the PAPI UDP port.
- Regular Audits: Conduct regular security audits and vulnerability assessments to identify and address potential security gaps.
5. Impact on European Cybersecurity Landscape
The vulnerability poses a significant threat to the European cybersecurity landscape, particularly for organizations relying on Aruba's network infrastructure. Successful exploitation could lead to unauthorized access, data breaches, and disruption of services, impacting critical infrastructure and business operations. The high EPSS score of 1 indicates a high likelihood of exploitation, underscoring the urgency for immediate mitigation.
6. Technical Details for Security Professionals
- Vulnerability Type: Buffer Overflow
- Affected Service: SAE (Simultaneous Authentication of Equals)
- Target Port: PAPI UDP port (8211)
- Exploitation Method: Sending specially crafted packets to trigger the buffer overflow
- Impact: Unauthenticated remote code execution with privileged access
- References: Aruba Security Advisory
Security professionals should prioritize the identification and remediation of this vulnerability in their environments. Regular monitoring and incident response planning are crucial to minimize the potential impact of this critical vulnerability.
Conclusion
EUVD-2024-29350 represents a critical vulnerability that requires immediate attention from cybersecurity professionals. By understanding the attack vectors, affected systems, and recommended mitigation strategies, organizations can effectively protect their networks and ensure the integrity and availability of their services.