CVE-2022-34599 in Magic R200
Summary
by MITRE • 07/20/2022
H3C Magic R200 R200V200R004L02 was discovered to contain a stack overflow via the EdittriggerList interface at /goform/aspForm.
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Analysis
by VulDB Data Team • 08/15/2022
The vulnerability CVE-2022-34599 represents a critical stack overflow flaw in H3C Magic R200 R200V200R004L02 network devices, specifically within the EdittriggerList interface exposed at the /goform/aspForm endpoint. This issue arises from insufficient input validation mechanisms in the web-based management interface, allowing attackers to craft malicious payloads that can overwrite stack memory locations. The stack overflow occurs when the device processes user-supplied data through the vulnerable form handler without proper bounds checking or sanitization. This type of vulnerability falls under CWE-121 Stack-based Buffer Overflow, which is classified as a high-severity weakness in the Common Weakness Enumeration catalog. The vulnerability is particularly concerning because it affects a network device's management interface, potentially allowing remote code execution or system compromise.
The technical exploitation of this vulnerability occurs when an attacker submits specially crafted data to the EdittriggerList interface through the /goform/aspForm endpoint. The device's web server fails to validate the length or content of the submitted parameters, causing the stack buffer to overflow when the input exceeds the allocated memory space. This overflow can overwrite adjacent memory locations including return addresses, function pointers, or other critical stack variables. The attack vector is remote and authenticated, meaning that an attacker with valid credentials can exploit this vulnerability to execute arbitrary code on the device. The vulnerability is classified under the MITRE ATT&CK framework as part of the T1210 technique for Exploitation of Remote Services, specifically targeting web application interfaces. The stack overflow can potentially lead to complete system compromise, allowing attackers to gain administrative access, modify device configurations, or even install backdoors.
The operational impact of CVE-2022-34599 extends beyond simple denial of service scenarios, as it represents a significant threat to network infrastructure security. Network administrators managing H3C Magic R200 devices in production environments face potential risks including unauthorized access to network management systems, data exfiltration, or disruption of network services. The vulnerability affects devices running firmware version R200V200R004L02, which may be deployed in enterprise networks, data centers, or critical infrastructure environments where device management is crucial. When exploited, this vulnerability can enable attackers to escalate privileges, modify network policies, or redirect traffic through compromised management interfaces. The remote nature of the attack means that adversaries do not require physical access to the devices, making the threat more pervasive and easier to exploit at scale. Organizations using affected H3C devices should consider this vulnerability as a high-priority risk requiring immediate remediation.
Mitigation strategies for CVE-2022-34599 should focus on both immediate defensive measures and long-term security improvements. The primary recommendation is to apply the latest firmware updates from H3C, which should include patches addressing the stack overflow vulnerability in the web interface. Network administrators should also implement network segmentation to limit access to management interfaces, ensuring that only authorized personnel can reach the vulnerable endpoints. Additional security controls include enabling strong authentication mechanisms, implementing network access controls through firewalls, and monitoring for suspicious activity in the management interface logs. The vulnerability highlights the importance of secure coding practices in web application development, particularly in input validation and buffer management. Organizations should conduct regular security assessments of their network infrastructure, including vulnerability scanning and penetration testing of management interfaces. The remediation process should also include reviewing access controls and implementing principle of least privilege for administrative accounts to minimize the impact if any vulnerabilities are exploited. Security monitoring should be enhanced to detect potential exploitation attempts through anomalous traffic patterns or unusual access to the /goform/aspForm endpoint.