CVE-2017-2722 in DP300
Summary
by MITRE
DP300 V500R002C00,TE60 with software V100R001C01, V100R001C10, V100R003C00, V500R002C00 and V600R006C00,TP3106 with software V100R001C06 and V100R002C00,ViewPoint 9030 with software V100R011C02, V100R011C03,eCNS210_TD with software V100R004C10,eSpace 7950 with software V200R003C00 and V200R003C30,eSpace IAD with software V300R001C07SPCa00 and V300R002C01SPCb00,eSpace U1981 with software V100R001C20, V100R001C30, V200R003C00, V200R003C20 and V200R003C30 have an input validation vulnerability.A remote attacker may exploit this vulnerability by crafting a malformed packet and sending it to the device. A successful exploit could allow the attacker to cause a denial of service or execute arbitrary code.
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Analysis
by VulDB Data Team • 01/11/2023
The vulnerability identified as CVE-2017-2722 represents a critical input validation flaw affecting multiple Huawei communication devices including DP300 series, TE60, TP3106, ViewPoint 9030, eCNS210_TD, eSpace 7950, eSpace IAD, and eSpace U1981. This weakness stems from insufficient validation of incoming network packets, creating an avenue for malicious actors to manipulate device behavior through carefully crafted malformed data. The affected software versions span across multiple product lines and firmware releases, indicating a widespread issue that impacts various unified communications and video conferencing systems. The vulnerability exists within the network protocol handling mechanisms of these devices, where input validation checks fail to properly sanitize incoming data streams, allowing attackers to bypass normal security controls.
The technical exploitation of this vulnerability occurs through packet crafting techniques that manipulate the device's input processing routines. When a remote attacker sends malformed packets to the affected devices, the system fails to properly validate the packet structure and content, leading to unpredictable behavior. This input validation failure creates a pathway for both denial of service conditions and potential code execution capabilities. The flaw operates at the protocol level where network packets are received and processed, making it particularly dangerous as it can be exploited without requiring authentication or physical access to the devices. The vulnerability's impact extends beyond simple service disruption to potentially allowing full system compromise, depending on the specific implementation and attack vectors available to the malicious actor.
From an operational standpoint, this vulnerability presents significant risks to enterprise communication infrastructures, particularly in environments where these Huawei devices serve as critical components of video conferencing, unified communications, or telephony systems. Organizations relying on these devices face potential disruption of business operations, service outages, and possible unauthorized access to sensitive communication channels. The vulnerability's remote exploitability means that attackers can target these devices from anywhere on the network, making it particularly dangerous in environments with limited network segmentation or inadequate perimeter security controls. The potential for arbitrary code execution creates additional concerns about data integrity and confidentiality, as attackers could potentially install backdoors or exfiltrate information from compromised systems.
The mitigation strategies for this vulnerability should include immediate firmware updates from Huawei to address the input validation issues in affected devices. Network administrators should implement strict packet filtering rules at network boundaries to prevent malformed packets from reaching these devices, though this approach may not be completely effective given the nature of the vulnerability. Additionally, implementing network segmentation and access control measures can limit the potential impact of successful exploitation attempts. Organizations should also consider monitoring network traffic for unusual packet patterns that might indicate exploitation attempts. This vulnerability aligns with CWE-20, which describes improper input validation, and maps to ATT&CK technique T1203, which covers exploitation for privilege escalation and T1498, covering network denial of service. Regular security assessments and vulnerability scanning should be implemented to identify other potential input validation weaknesses in the broader network infrastructure.
The widespread nature of this vulnerability across multiple product lines and firmware versions indicates that Huawei likely implemented a common input validation pattern that was consistently flawed across their communication device portfolio. This suggests that the vulnerability may have originated from a shared codebase or development framework used across multiple products, making the impact more extensive than a single device-specific issue. The vulnerability's persistence across multiple software releases also indicates that the fix may not have been immediately or consistently applied across all affected versions, requiring careful inventory management and update coordination. Organizations should conduct comprehensive asset inventories to identify all affected devices and prioritize remediation efforts based on criticality and network exposure. The vulnerability serves as a reminder of the importance of thorough input validation in network-facing applications and the potential consequences of inadequate security controls in communication infrastructure devices.