CVE-2017-15355 in DP300
Summary
by MITRE
Huawei DP300, V500R002C00, RP200, V600R006C00, TE30, V100R001C10, V500R002C00,V600R006C00, TE40, V500R002C00, V600R006C00, TE50, V500R002C00,V600R006C00, TE60, V100R001C10, V500R002C00, V600R006C00, TX50,V500R002C00, V600R006C00 have a buffer overflow vulnerability. An attacker may send specially crafted HTTP messages to the affected products. Due insufficient input validation of three different parameters in the messages, successful exploit may cause some service abnormal.
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Analysis
by VulDB Data Team • 02/08/2023
This vulnerability affects multiple Huawei video conferencing and collaboration devices including DP300, RP200, TE30, TE40, TE50, TE60, and TX50 across various firmware versions. The buffer overflow occurs within the HTTP processing functionality of these devices, representing a critical security flaw that can be exploited through network-based attacks. The vulnerability stems from inadequate input validation mechanisms that fail to properly sanitize three distinct parameters within HTTP messages, creating opportunities for attackers to manipulate device memory structures through carefully crafted payloads. This weakness allows malicious actors to potentially disrupt services or gain unauthorized access to affected systems.
The technical implementation of this vulnerability involves the exploitation of memory management flaws in the HTTP server component of Huawei's telepresence and video conferencing equipment. When the affected devices receive HTTP requests containing oversized or malformed parameter values, the system fails to properly validate input boundaries, leading to memory corruption that can result in service disruption or system instability. The vulnerability specifically targets three different HTTP parameters, suggesting a systemic issue in the input validation framework rather than isolated code flaws. This type of buffer overflow represents a classic software security weakness that can be categorized under CWE-121, which deals with stack-based buffer overflow conditions. The attack vector requires network connectivity to the affected devices and can be executed remotely without requiring physical access or authentication credentials.
The operational impact of this vulnerability extends beyond simple service disruption, as it can potentially enable more sophisticated attack scenarios. While the current description indicates that successful exploitation may cause "some service abnormal," the nature of buffer overflows in network services often provides attackers with opportunities to execute arbitrary code or gain elevated privileges. The affected devices typically operate in enterprise environments where they handle sensitive video conferencing data, making them attractive targets for adversaries seeking to compromise communication infrastructure. Organizations using these devices face potential risks including unauthorized access to video streams, disruption of business communications, and possible data exfiltration through compromised systems. The vulnerability affects multiple product lines and firmware versions, indicating that Huawei may have implemented similar flawed validation mechanisms across their telepresence product portfolio.
Mitigation strategies for this vulnerability should include immediate firmware updates from Huawei addressing the specific buffer overflow conditions in the HTTP processing components. Network segmentation and access controls should be implemented to limit exposure of these devices to untrusted networks, while firewall rules can be configured to restrict HTTP traffic to only necessary sources. Regular security assessments and network monitoring should be conducted to detect potential exploitation attempts, with particular attention to unusual HTTP traffic patterns or service disruptions. Organizations should also implement network intrusion detection systems capable of identifying malformed HTTP requests that could indicate exploitation attempts. The vulnerability demonstrates the importance of proper input validation and memory management practices in network services, aligning with ATT&CK technique T1203 which covers exploitation of remote services through buffer overflow conditions. Additionally, this vulnerability highlights the need for robust software security practices throughout the development lifecycle, emphasizing the critical importance of code review and security testing for network-facing applications.