CVE-2022-30910 in Magic R100
Summary
by MITRE • 06/08/2022
H3C Magic R100 R100V100R005 was discovered to contain a stack overflow vulnerability via the GO parameter at /goform/aspForm.
If you want to get the best quality for vulnerability data then you always have to consider VulDB.
Analysis
by VulDB Data Team • 06/11/2022
The vulnerability identified as CVE-2022-30910 affects H3C Magic R100 R100V100R005 devices and represents a critical stack overflow condition that can be exploited through the GO parameter within the /goform/aspForm endpoint. This issue resides in the web interface handling mechanism of the device firmware, where insufficient input validation allows maliciously crafted data to overwrite stack memory regions. The stack overflow vulnerability occurs when the device processes the GO parameter without proper bounds checking or sanitization, enabling an attacker to inject excessive data that exceeds the allocated stack buffer space. Such a condition can lead to arbitrary code execution or complete device compromise, as the overflow can overwrite return addresses and function pointers stored on the stack. The vulnerability is particularly concerning because it exists in the web-based management interface, making it accessible over the network without requiring physical access to the device.
The technical exploitation of this vulnerability follows a classic stack buffer overflow pattern that aligns with CWE-121 Stack-based Buffer Overflow, where insufficient bounds checking allows data to overwrite adjacent memory locations. The attack vector specifically targets the /goform/aspForm endpoint, which suggests that the device uses a web form processing framework that fails to validate the length of input parameters before copying them into fixed-size buffers. This flaw enables an attacker to craft a malicious HTTP request containing an overly long GO parameter value, causing the device's web server process to crash or execute unintended code. The vulnerability demonstrates a lack of proper input validation and sanitization mechanisms that should be implemented according to secure coding practices outlined in the OWASP Top Ten and NIST Secure Coding Standards.
The operational impact of CVE-2022-30910 extends beyond simple device instability, as successful exploitation can provide attackers with full administrative control over affected H3C Magic R100 devices. This compromise allows adversaries to modify device configurations, access sensitive network information, redirect traffic, or establish persistent backdoors within the network infrastructure. The vulnerability affects devices that are commonly deployed in enterprise and small office environments, making them attractive targets for network infiltration. Attackers can leverage this vulnerability as part of broader attack campaigns targeting network infrastructure devices, potentially using it as a foothold for lateral movement within compromised networks. The impact is further amplified by the fact that these devices often serve as network gateways or access points, providing attackers with elevated privileges to monitor or manipulate network traffic.
Mitigation strategies for this vulnerability should prioritize immediate firmware updates from H3C, as the vendor would have likely released patches addressing the input validation flaws in the web interface processing. Network administrators should implement strict access controls limiting administrative access to these devices, utilizing network segmentation to isolate them from critical systems. Monitoring network traffic for suspicious requests containing unusually long parameter values in the GO parameter can help detect exploitation attempts. Additionally, implementing web application firewalls and intrusion detection systems can provide additional layers of protection against exploitation attempts. The vulnerability highlights the importance of regular security assessments and firmware updates, as well as adherence to secure development practices that prevent buffer overflow conditions through proper input validation and memory management techniques. Organizations should also consider implementing vulnerability scanning tools that can identify devices running affected firmware versions and prioritize remediation efforts accordingly.