CVE-2017-17219 in DP300
Summary
by MITRE
SCCPX module in Huawei DP300 V500R002C00; RP200 V500R002C00; V600R006C00; TE30 V100R001C10; V500R002C00; V600R006C00; TE40 V500R002C00; V600R006C00; TE50 V500R002C00; V600R006C00; TE60 V100R001C10; V500R002C00; V600R006C00 has an invalid memory access vulnerabilities. An unauthenticated, remote attacker crafts malformed packets with specific parameter to the affected products. Due to insufficient validation of packets, successful exploitation may impact availability of product service.
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Analysis
by VulDB Data Team • 02/17/2023
The vulnerability identified as CVE-2017-17219 affects Huawei communication devices including DP300, RP200, TE30, TE40, TE50, and TE60 series across multiple software versions. This represents a critical memory access flaw within the SCCPX module that governs packet processing and communication protocols. The vulnerability stems from inadequate input validation mechanisms that fail to properly sanitize incoming network packets before processing them within the device's memory management systems.
The technical implementation of this vulnerability manifests through improper handling of malformed network packets containing specific parameter values that trigger invalid memory access conditions. When these crafted packets reach the affected Huawei devices, the SCCPX module processes them without sufficient validation checks, leading to memory corruption that can result in system instability. This type of vulnerability falls under CWE-125, which describes out-of-bounds read conditions, and CWE-787, which covers out-of-bounds write operations that can lead to memory corruption and system compromise.
From an operational perspective, this vulnerability presents a significant risk to network availability and service continuity. An unauthenticated remote attacker can exploit this weakness by simply sending specially crafted packets to the affected devices without requiring any prior authentication credentials. The impact of successful exploitation includes potential service disruption, system crashes, and complete unavailability of the targeted communication equipment. This aligns with ATT&CK technique T1498 which covers network denial of service attacks that target system availability through memory corruption vulnerabilities.
The attack vector demonstrates the classic characteristics of a remote code execution vulnerability that can be leveraged for service disruption attacks. The lack of authentication requirements makes this particularly dangerous as attackers can target these devices from anywhere on the network without needing to establish a foothold first. Organizations should consider implementing network segmentation and access control measures to limit exposure, while also deploying intrusion detection systems capable of identifying malformed packet patterns associated with this specific vulnerability. The vulnerability highlights the importance of proper input validation and memory management practices in embedded network devices that handle real-time communication traffic.