Description
An issue in Intelbras RX1500 v2.2.9 and RX3000 v1.0.11 allows unauthenticated attackers to execute arbitrary code via injecting a crafted payload into the ESSID name when creating a network.
EPSS Score:
0%
Comprehensive Technical Analysis of EUVD-2025-23312
1. Vulnerability Assessment and Severity Evaluation
The vulnerability described in EUVD-2025-23312 affects Intelbras RX1500 v2.2.9 and RX3000 v1.0.11 devices, allowing unauthenticated attackers to execute arbitrary code by injecting a crafted payload into the ESSID name when creating a network. The CVSS (Common Vulnerability Scoring System) base score of 9.8 indicates 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 skill or resources.
- 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) - The vulnerability allows for high confidentiality impact.
- Integrity (I): High (H) - The vulnerability allows for high integrity impact.
- Availability (A): High (H) - The vulnerability allows for high availability impact.
This high severity score underscores the critical nature of the vulnerability, making it a top priority for immediate remediation.
2. Potential Attack Vectors and Exploitation Methods
The primary attack vector involves injecting a crafted payload into the ESSID (Extended Service Set Identifier) name when creating a network. This can be achieved through:
- Wireless Network Configuration: An attacker can exploit this vulnerability by configuring a wireless network with a malicious ESSID name.
- Public Wi-Fi Networks: Attackers can set up rogue access points with crafted ESSID names in public places to target unsuspecting users.
- Phishing Attacks: Users can be tricked into connecting to a malicious network through phishing emails or social engineering tactics.
Exploitation methods may include:
- Buffer Overflow: Crafting an ESSID name that causes a buffer overflow, leading to arbitrary code execution.
- Command Injection: Injecting commands into the ESSID name that are executed by the vulnerable device.
3. Affected Systems and Software Versions
The affected systems are:
- Intelbras RX1500 v2.2.9
- Intelbras RX3000 v1.0.11
These devices are commonly used in home and small business environments for wireless networking.
4. Recommended Mitigation Strategies
To mitigate this vulnerability, the following strategies are recommended:
- Firmware Update: Immediately update the firmware of the affected devices to the latest version provided by Intelbras.
- Network Segmentation: Segment the network to isolate vulnerable devices from critical systems.
- Access Control: Implement strict access controls to limit unauthorized access to network configuration settings.
- Monitoring and Detection: Use network monitoring tools to detect and alert on suspicious network activities, such as the creation of new wireless networks with unusual ESSID names.
- User Education: Educate users about the risks of connecting to unknown or untrusted wireless networks.
5. Impact on European Cybersecurity Landscape
The impact of this vulnerability on the European cybersecurity landscape is significant due to the widespread use of Intelbras devices in various sectors, including residential, small businesses, and public Wi-Fi hotspots. The potential for unauthenticated remote code execution poses a serious risk to data confidentiality, integrity, and availability. This vulnerability could be exploited for large-scale attacks, leading to data breaches, service disruptions, and potential financial losses.
6. Technical Details for Security Professionals
For security professionals, the following technical details are pertinent:
- Payload Crafting: The payload injected into the ESSID name should be carefully crafted to exploit the vulnerability. This may involve understanding the specific buffer sizes and command injection points in the affected firmware versions.
- Detection Mechanisms: Implement Intrusion Detection Systems (IDS) and Intrusion Prevention Systems (IPS) to detect and block malicious ESSID names.
- Log Analysis: Regularly analyze network logs for any unusual ESSID names or network configuration changes.
- Patch Management: Ensure a robust patch management process to quickly apply updates from Intelbras.
- Incident Response: Develop an incident response plan that includes steps for identifying, containing, and remediating any exploitation of this vulnerability.
Conclusion
The vulnerability described in EUVD-2025-23312 is critical and requires immediate attention from cybersecurity professionals. By understanding the attack vectors, affected systems, and recommended mitigation strategies, organizations can effectively protect against potential exploitation and maintain the security of their networks.