CVE-2017-17155 in NGFW Module
Summary
by MITRE
IKEv2 in Huawei IPS Module V500R001C00, V500R001C00SPC200, V500R001C00SPC300, V500R001C00SPC500, V500R001C00SPH303, V500R001C00SPH508, V500R001C20, V500R001C20SPC100, V500R001C20SPC100PWE, V500R001C20SPC200, V500R001C20SPC200B062, V500R001C20SPC200PWE, V500R001C20SPC300B078, V500R001C20SPC300PWE, NGFW Module V500R001C00, V500R001C00SPC200, V500R001C00SPC300, V500R001C00SPC500, V500R001C00SPC500PWE, V500R001C00SPH303, V500R001C00SPH508, V500R001C20, V500R001C20SPC100, V500R001C20SPC100PWE, V500R001C20SPC200, V500R001C20SPC200B062, V500R001C20SPC200PWE, V500R001C20SPC300B078, V500R001C20SPC300PWE, NIP6300 V500R001C00, V500R001C00SPC200, V500R001C00SPC300, V500R001C00SPC500, V500R001C00SPH303, V500R001C00SPH508, V500R001C20, V500R001C20SPC100, V500R001C20SPC100PWE, V500R001C20SPC200, V500R001C20SPC200B062, V500R001C20SPC200PWE, V500R001C20SPC300B078, V500R001C20SPC300PWE, NIP6600 V500R001C00, V500R001C00SPC200, V500R001C00SPC300, V500R001C00SPC500, V500R001C00SPH303, V500R001C00SPH508, V500R001C20, V500R001C20SPC100, V500R001C20SPC100PWE, V500R001C20SPC200, V500R001C20SPC200B062, V500R001C20SPC200PWE, V500R001C20SPC300B078, Secospace USG6300 V500R001C00, V500R001C00SPC200, V500R001C00SPC300, V500R001C00SPC500, V500R001C00SPC500PWE, V500R001C00SPH303, V500R001C00SPH508, V500R001C20, V500R001C20SPC100, V500R001C20SPC100PWE, V500R001C20SPC101, V500R001C20SPC200, V500R001C20SPC200B062, V500R001C20SPC200PWE, V500R001C20SPC300B078, V500R001C20SPC300PWE, Secospace USG6500 V500R001C00, V500R001C00SPC200, V500R001C00SPC300, V500R001C00SPC500, V500R001C00SPC500PWE, V500R001C00SPH303, V500R001C00SPH508, V500R001C20, V500R001C20SPC100, V500R001C20SPC100PWE, V500R001C20SPC101, V500R001C20SPC200, V500R001C20SPC200B062, V500R001C20SPC200PWE, V500R001C20SPC300B078, V500R001C20SPC300PWE, Secospace USG6600 V500R001C00, V500R001C00SPC100, V500R001C00SPC200, V500R001C00SPC300, V500R001C00SPC301, V500R001C00SPC500, V500R001C00SPC500PWE, V500R001C00SPH303, V500R001C20, V500R001C20SPC100, V500R001C20SPC100PWE, V500R001C20SPC101, V500R001C20SPC200, V500R001C20SPC200PWE, V500R001C20SPC300, V500R001C20SPC300B078, V500R001C20SPC300PWE, USG9500 V500R001C00, V500R001C00SPC200, V500R001C00SPC300, V500R001C00SPC303, V500R001C00SPC500, V500R001C00SPC500PWE, V500R001C00SPH303, V500R001C00SPH508, V500R001C20, V500R001C20SPC100, V500R001C20SPC100PWE, V500R001C20SPC101, V500R001C20SPC200, V500R001C20SPC200B062, V500R001C20SPC200PWE, V500R001C20SPC300B078, V500R001C20SPC300PWE has an out-of-bounds memory access vulnerability due to incompliance with the 4-byte alignment requirement imposed by the MIPS CPU. An attacker could exploit it to cause unauthorized memory access, which may further lead to system exceptions.
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Analysis
by VulDB Data Team • 02/08/2023
The vulnerability identified as CVE-2017-17155 affects Huawei's IPS Module and various firewall and network security devices running specific software versions. This issue stems from an out-of-bounds memory access flaw that occurs when the software fails to comply with the 4-byte alignment requirements mandated by the MIPS CPU architecture. The vulnerability is particularly concerning because it exists within the IKEv2 protocol implementation, which is fundamental to establishing secure communications between network devices. The affected products include multiple models such as the NIP6300, NIP6600, Secospace USG6300, USG6500, USG6600, and USG9500 series, all running various firmware versions of the Huawei security software.
The technical flaw manifests when the IKEv2 implementation processes certain packets that do not adhere to proper memory alignment standards required by the MIPS processor. This misalignment can cause the system to access memory locations outside of the intended boundaries, potentially leading to unpredictable behavior and system instability. The vulnerability is classified as a memory safety issue that could be exploited by remote attackers without requiring authentication. When exploited, this flaw may result in system exceptions, crashes, or potentially more severe consequences depending on the specific memory locations accessed. The issue represents a classic buffer overflow scenario where improper input validation leads to memory corruption.
From an operational perspective, this vulnerability poses significant risks to network security infrastructure. The ability to cause system exceptions through unauthorized memory access means that an attacker could potentially disrupt network services, create denial-of-service conditions, or even gain further access to the system. The impact extends beyond simple service disruption as the vulnerability could be leveraged to escalate privileges or execute arbitrary code. Security operations teams must consider the critical nature of these devices, which often serve as primary network security gateways and traffic filters. The vulnerability affects both the IPS module and various firewall implementations, making it particularly dangerous for organizations relying on Huawei's security solutions for their network protection.
Mitigation strategies for CVE-2017-17155 should focus on immediate firmware updates provided by Huawei to address the memory alignment issue in the IKEv2 implementation. Organizations should prioritize patching affected devices, especially those handling critical network traffic or serving as primary security controls. Network segmentation and access control measures can provide additional protection while patches are being deployed. Monitoring for unusual system behavior or memory access patterns may help detect exploitation attempts. The vulnerability aligns with CWE-121, which describes stack-based buffer overflow conditions, and could potentially map to ATT&CK techniques involving privilege escalation and system compromise. Regular security assessments of network infrastructure and vulnerability scanning should be implemented to identify similar alignment issues in other components. Given the nature of the vulnerability, organizations should also consider implementing network-level protections to limit the attack surface and reduce the potential impact of exploitation attempts.