CVE-2017-17163 in Secospace USG6600
Summary
by MITRE
Huawei Secospace USG6600 V500R001C30SPC100 has an Out-of-Bounds memory access vulnerability due to insufficient verification. An authenticated local attacker can make processing crash by executing some commands. The attacker can exploit this vulnerability to cause a denial of service.
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Analysis
by VulDB Data Team • 02/08/2023
The Huawei Secospace USG6600 V500R001C30SPC100 firewall device contains a critical out-of-bounds memory access vulnerability that stems from inadequate input validation mechanisms within its command processing framework. This vulnerability resides in the device's local command execution subsystem where insufficient boundary checks are performed on user-supplied parameters. The flaw allows an authenticated attacker with local access privileges to manipulate memory structures through specifically crafted command sequences, leading to unpredictable behavior and system instability.
The technical nature of this vulnerability aligns with CWE-125, which describes out-of-bounds read conditions where an attacker can access memory locations beyond the intended buffer boundaries. The vulnerability manifests when legitimate administrative commands are processed without proper parameter validation, enabling an attacker to craft inputs that exceed allocated memory limits. This type of memory corruption vulnerability represents a significant risk to network security infrastructure as it can be exploited to disrupt critical network services and potentially provide a foothold for further attacks.
From an operational perspective, the impact of this vulnerability extends beyond simple denial of service conditions. An authenticated local attacker who gains access to the device through legitimate administrative credentials can exploit this weakness to cause system crashes, restarts, or complete service outages. The vulnerability affects the availability of network security services provided by the firewall, potentially leaving network segments exposed to unauthorized access during outage periods. The attack surface is limited to authenticated local access, but this restriction does not mitigate the severity of potential impacts on network operations and security posture.
The exploitation of this vulnerability demonstrates characteristics consistent with ATT&CK technique T1068, which involves local privilege escalation and system exploitation through command injection or memory corruption. Network security administrators should consider this vulnerability as part of a broader attack surface assessment, particularly when evaluating the security of network infrastructure devices that may be accessible to authenticated users. The vulnerability also highlights the importance of implementing proper input validation and boundary checking mechanisms in network security appliances to prevent similar issues from occurring in other components of the security infrastructure.
Organizations should prioritize immediate patching of affected Huawei Secospace USG6600 devices to address this vulnerability and prevent potential exploitation. Additionally, implementing network segmentation and access controls to limit local administrative access can help reduce the attack surface. Security monitoring should be enhanced to detect unusual command execution patterns that might indicate exploitation attempts. The vulnerability serves as a reminder of the critical importance of validating all input parameters within network security devices and implementing robust memory management practices to prevent unauthorized memory access and system instability.