CVE-2017-15332 in Huawei
Summary
by MITRE
Huawei AR120-S V200R006C10, V200R007C00, V200R008C20, V200R008C30, AR1200 V200R006C10, V200R006C13, V200R007C00, V200R007C01, V200R007C02, V200R008C20, V200R008C30, AR1200-S V200R006C10, V200R007C00, V200R008C20, V200R008C30, AR150 V200R006C10, V200R007C00, V200R007C01, V200R007C02, V200R008C20, V200R008C30, AR150-S V200R006C10, V200R007C00, V200R008C20, V200R008C30, AR160 V200R006C10, V200R006C12, V200R007C00, V200R007C01, V200R007C02, V200R008C20, V200R008C30, AR200 V200R006C10, V200R007C00, V200R007C01, V200R008C20, V200R008C30, AR200-S V200R006C10, V200R007C00, V200R008C20, V200R008C30, AR2200 V200R006C10, V200R006C13, V200R006C16PWE, V200R007C00, V200R007C01, V200R007C02, V200R008C20, V200R008C30, AR2200-S V200R006C10, V200R007C00, V200R008C20, V200R008C30, AR3200 V200R006C10, V200R006C11, V200R007C00, V200R007C01, V200R007C02, V200R008C00, V200R008C10, V200R008C20, V200R008C30, AR510 V200R006C10, V200R006C12, V200R006C13, V200R006C15, V200R006C16, V200R006C17, V200R007C00, V200R008C20, V200R008C30, DP300 V500R002C00, IPS Module V100R001C10SPC200, V100R001C20, V100R001C30, V500R001C00, V500R001C20, V500R001C30, V500R001C50, MAX PRESENCE V100R001C00, NGFW Module V100R001C10SPC200, V100R001C20, V100R001C30, V500R001C00, V500R001C20, V500R002C00, V500R002C10, NIP6300 V500R001C00, V500R001C20, V500R001C30, V500R001C50, NIP6600 V500R001C00, V500R001C20, V500R001C30, V500R001C50, NIP6800 V500R001C50, NetEngine16EX V200R006C10, V200R007C00, V200R008C20, V200R008C30, RP200 V500R002C00SPC200, V600R006C00, RSE6500 V500R002C00, SMC2.0 V100R003C10, V100R005C00, V500R002C00, V500R002C00T, V600R006C00, V600R006C00T, SRG1300 V200R006C10, V200R007C00, V200R007C02, V200R008C20, V200R008C30, SRG2300 V200R006C10, V200R007C00, V200R007C02, V200R008C20, V200R008C30, SRG3300 V200R006C10, V200R007C00, V200R008C20, V200R008C30, SVN5600 V200R003C00, V200R003C10, SVN5800 V200R003C00, V200R003C10, SVN5800-C V200R003C00, V200R003C10, Secospace USG6300 V100R001C10, V100R001C20, V100R001C30, V500R001C00, V500R001C20, V500R001C30, V500R001C50, Secospace USG6500 V100R001C10, V100R001C20, V100R001C30, V500R001C00, V500R001C20, V500R001C30, V500R001C50, TE30 V100R001C10, V500R002C00, V600R006C00, TE40 V500R002C00, V600R006C00, TE50 V500R002C00, V600R006C00, TE60 V100R001C01, V100R001C10, V500R002C00, V600R006C00, TP3106 V100R002C00, TP3206 V100R002C00, USG9500 V500R001C00, V500R001C20, V500R001C30, V500R001C50, USG9520 V300R001C01, V300R001C20, USG9560 V300R001C01, V300R001C20, USG9580 V300R001C01, V300R001C20, ViewPoint 9030 V100R011C02, V100R011C03, have a memory leak vulnerability in H323 protocol. The vulnerability is due to insufficient verification of the packets. An unauthenticated, remote attacker could exploit this vulnerability by sending crafted packets. A successful exploit could cause a memory leak and eventual denial of service (DoS) condition on an affected device.
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Analysis
by VulDB Data Team • 02/06/2023
The vulnerability identified as CVE-2017-15332 affects multiple Huawei network equipment models including AR series routers, firewalls, and various security appliances. This memory leak vulnerability specifically targets the H323 protocol implementation within these devices, representing a critical weakness in the network infrastructure security posture. The issue stems from inadequate packet validation mechanisms that fail to properly verify incoming H323 protocol traffic, creating an exploitable condition that can be leveraged by remote attackers without authentication requirements. The vulnerability manifests as a gradual consumption of system memory resources through malformed H323 packets, ultimately leading to device instability and service disruption.
The technical flaw resides in the protocol parsing logic where the system does not adequately validate packet structures and content before processing H323 protocol messages. This insufficient verification creates a memory management gap where allocated memory for packet handling is not properly released or recycled, resulting in progressive memory exhaustion. The attack vector is particularly concerning as it requires no authentication credentials and can be executed remotely, making it accessible to any attacker with network connectivity to the affected devices. According to CWE classification, this vulnerability aligns with CWE-401: Improper Release of Memory, which specifically addresses memory leak conditions in software implementations.
The operational impact of this vulnerability extends beyond simple service disruption to potentially compromise entire network infrastructures. When exploited successfully, the memory leak condition can cause devices to become unresponsive, leading to extended downtime for critical network services. Network administrators may observe gradual performance degradation before complete system failure, making detection difficult until significant damage has occurred. The widespread affected product line including various router models, firewalls, and security appliances means that organizations with Huawei infrastructure may face cascading failures across multiple network segments. This vulnerability particularly affects enterprise and service provider networks where continuous availability is critical for business operations.
Mitigation strategies for CVE-2017-15332 should prioritize immediate firmware updates from Huawei to address the underlying memory management issues in H323 protocol handling. Network administrators should implement network segmentation to limit exposure of affected devices to untrusted networks and consider disabling H323 protocol processing where not required for business operations. Monitoring for unusual memory usage patterns and implementing intrusion detection systems can help identify exploitation attempts. According to ATT&CK framework, this vulnerability relates to T1205.001: Traffic Duplication and T1499.004: Endpoint Denial of Service, indicating the need for both defensive measures and detection capabilities. Organizations should also implement network access controls and firewall rules to restrict H323 protocol traffic to authorized sources only, reducing the attack surface for this specific vulnerability.