CVE-2017-17218 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 out-of-bounds read vulnerability. 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 CVE-2017-17218 vulnerability resides within the SCCPX module of various Huawei communication devices including DP300, RP200, TE30, TE40, TE50, and TE60 series across multiple firmware versions. This out-of-bounds read vulnerability represents a critical flaw in the packet processing logic that affects the overall system stability and availability. The vulnerability manifests when the affected devices receive malformed network packets containing specific parameters that are not properly validated by the SCCPX module. The root cause of this issue stems from inadequate input validation mechanisms within the packet handling routines, allowing attackers to craft malicious payloads that exploit memory access violations. Such vulnerabilities fall under the CWE-129 category of "Improper Validation of Array Index" and align with ATT&CK technique T1210 for exploitation of remote services through malformed inputs.
The technical exploitation of this vulnerability occurs through remote, unauthenticated attack vectors where malicious actors can send specially crafted packets to the affected Huawei devices without requiring any prior authentication credentials. The specific parameter manipulation targets the SCCPX module's handling of network protocol data units, causing the system to attempt memory access beyond allocated buffer boundaries. This type of out-of-bounds read can lead to system instability, service disruption, and potential denial of service conditions that compromise the availability of critical communication services. The vulnerability affects multiple device families and firmware versions, indicating a widespread issue within Huawei's product line that requires immediate attention from network administrators and security teams.
The operational impact of CVE-2017-17218 extends beyond simple service disruption to potentially compromise the integrity of communication networks that rely on these devices. When successfully exploited, the vulnerability can cause the affected devices to crash or become unresponsive, leading to extended downtime for video conferencing, telepresence, and communication services. Network administrators may experience difficulty in maintaining service availability for critical business operations, particularly in enterprise environments where these devices form the backbone of communication infrastructure. The remote nature of the attack means that adversaries can target these devices from outside the network perimeter, making traditional network segmentation measures insufficient for protection. Organizations utilizing these Huawei products should consider the potential for cascading failures when multiple devices in a network are vulnerable to the same exploit.
Mitigation strategies for this vulnerability should include immediate firmware updates from Huawei to address the identified SCCPX module flaws. Network administrators should implement strict packet filtering rules to prevent malformed traffic from reaching affected devices, particularly focusing on traffic patterns that may indicate exploitation attempts. Monitoring systems should be configured to detect unusual traffic patterns or service disruptions that may indicate successful exploitation. The implementation of network segmentation and access controls can help limit the potential impact of exploitation attempts, while regular vulnerability assessments should be conducted to identify other potential attack vectors within the network infrastructure. Additionally, organizations should maintain detailed incident response procedures that include steps for isolating affected devices, analyzing exploitation attempts, and restoring services following successful mitigation efforts.