CVE-2017-17187 in DP300
Summary
by MITRE
Huawei DP300 V500R002C00, RP200 V500R002C00, V600R006C00, TE30 V100R001C10, V500R002C00, V600R006C00, TE40 V500R002C00, V600R006C00, TE50 V500R002C00, V600R006C00, TE60 V100R001C10, V500R002C00, V600R006C00 have an integer overflow vulnerability. Due to insufficient input validation, an authenticated, remote attacker could send malformed SOAP packets to the target device. Successful exploit could cause an integer overflow and might reset a process.
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Analysis
by VulDB Data Team • 02/08/2023
The vulnerability identified as CVE-2017-17187 affects multiple Huawei video conferencing and communication devices including DP300, RP200, TE30, TE40, TE50, and TE60 models across various firmware versions. This integer overflow vulnerability represents a critical security flaw that stems from inadequate input validation mechanisms within the SOAP packet processing functionality of these devices. The flaw exists in the way these communication appliances handle structured data exchange protocols, specifically when processing incoming SOAP (Simple Object Access Protocol) messages that are commonly used for web services communication in enterprise environments.
The technical implementation of this vulnerability allows an authenticated remote attacker to craft and transmit specially malformed SOAP packets to the affected Huawei devices. This attack vector operates through the network interface of the targeted system, requiring only network connectivity and valid authentication credentials to execute successfully. The integer overflow occurs during the processing of input parameters within the SOAP message parsing routine, where the system fails to properly validate the size or range of integer values contained in the malformed packets. This validation failure creates a condition where integer arithmetic operations exceed the maximum allowable value for the data type, leading to unexpected behavior in the application's memory management and execution flow.
The operational impact of this vulnerability extends beyond simple denial of service conditions, as the integer overflow can potentially cause complete process resets or even system instability. When the overflow occurs, it may corrupt memory structures, leading to unpredictable application behavior and service interruptions that could severely impact enterprise communication infrastructure. The vulnerability particularly affects video conferencing systems that rely on continuous operation for business-critical communications, making the potential disruption significant for organizations dependent on these platforms. From a cybersecurity perspective, this vulnerability aligns with CWE-190, which specifically addresses integer overflow conditions, and represents a classic example of how insufficient input validation can lead to memory corruption vulnerabilities that can be exploited remotely.
Organizations should implement immediate mitigation strategies including firmware updates from Huawei to address the integer overflow issue, network segmentation to limit access to these devices, and enhanced monitoring of SOAP packet traffic for anomalous patterns. The ATT&CK framework categorizes this vulnerability under the T1210 technique for exploitation of remote services, highlighting the need for proper access controls and network security measures. Device administrators should also consider implementing intrusion detection systems that can identify and alert on malformed SOAP traffic patterns, while maintaining regular security assessments to identify similar vulnerabilities in other networked devices. The vulnerability demonstrates the importance of robust input validation practices and proper error handling in network services, particularly those handling structured data formats like SOAP that are commonly used in enterprise communication systems.