CVE-2017-17137 in DP300
Summary
by MITRE
PEM module of Huawei DP300 V500R002C00; IPS Module V500R001C00; V500R001C30; NGFW Module V500R001C00; V500R002C00; NIP6300 V500R001C00; V500R001C30; NIP6600 V500R001C00; V500R001C30; RP200 V500R002C00; V600R006C00; S12700 V200R007C00; V200R007C01; V200R008C00; V200R009C00; V200R010C00; S1700 V200R006C10; V200R009C00; V200R010C00; S2700 V200R006C10; V200R007C00; V200R008C00; V200R009C00; V200R010C00; S5700 V200R006C00; V200R007C00; V200R008C00; V200R009C00; V200R010C00; S6700 V200R008C00; V200R009C00; V200R010C00; S7700 V200R007C00; V200R008C00; V200R009C00; V200R010C00; S9700 V200R007C00; V200R007C01; V200R008C00; V200R009C00; V200R010C00; Secospace USG6300 V500R001C00; V500R001C30; Secospace USG6500 V500R001C00; V500R001C30; Secospace USG6600 V500R001C00; V500R001C30S; TE30 V100R001C02; V100R001C10; V500R002C00; V600R006C00; TE40 V500R002C00; V600R006C00; TE50 V500R002C00; V600R006C00; TE60 V100R001C01; V100R001C10; V500R002C00; V600R006C00; TP3106 V100R002C00; TP3206 V100R002C00; V100R002C10; USG9500 V500R001C00; V500R001C30; ViewPoint 9030 V100R011C02; V100R011C03 has an Out-of-Bounds memory access vulnerability due to insufficient verification. An authenticated local attacker can make processing crash by a malicious certificate. The attacker can exploit this vulnerability to cause a denial of service.
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Analysis
by VulDB Data Team • 02/16/2023
The vulnerability identified as CVE-2017-17137 affects Huawei's PEM (Public Key Infrastructure) module across numerous network security devices and software versions including various firewall models, switch series, and video conferencing equipment. This issue stems from inadequate input validation within the certificate processing functionality, specifically in how the system handles certificate data during parsing operations. The vulnerability manifests as an out-of-bounds memory access condition that occurs when the system attempts to process malformed or malicious certificate inputs without proper boundary checks.
The technical flaw resides in the insufficient verification mechanisms implemented within the PEM module's certificate parsing routines. When an authenticated local attacker submits a specially crafted certificate, the system fails to validate the certificate structure properly before attempting to access memory locations beyond the allocated buffer boundaries. This condition results in memory corruption that causes the affected process to crash, leading to a denial of service scenario. The vulnerability is classified under CWE-129 as "Improper Validation of Array Index" and aligns with ATT&CK technique T1499.004 for "Endpoint Denial of Service" through resource exhaustion or process termination.
Operational impact of this vulnerability extends significantly across Huawei's security infrastructure portfolio, affecting both network perimeter devices and internal security appliances. The authenticated local privilege requirement means that an attacker must first establish valid credentials to exploit the vulnerability, but once achieved, the impact can be substantial. Network administrators may experience service interruptions as affected devices crash and require manual intervention to restore functionality. The widespread nature of affected products including various switch series, firewall models, and unified threat management appliances creates cascading operational risks for organizations relying on Huawei security infrastructure. The vulnerability particularly impacts environments where certificate-based authentication is heavily utilized, as it can be triggered through legitimate certificate processing operations.
Mitigation strategies should focus on immediate firmware updates from Huawei to address the validation gap in certificate processing. Organizations should implement network segmentation to limit local access to affected devices and establish monitoring protocols to detect abnormal certificate processing patterns. Regular security assessments should verify that certificate validation routines properly handle malformed inputs and implement proper bounds checking. Network administrators should also consider disabling unnecessary certificate processing features when possible and maintain detailed logging of certificate-related activities for forensic analysis. Additionally, implementing network access controls and privilege separation can reduce the attack surface for local exploitation attempts. The vulnerability highlights the importance of proper input validation in cryptographic processing modules and demonstrates the critical need for robust memory safety mechanisms in security infrastructure components.