CVE-2017-17186 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 a DoS vulnerability. Due to insufficient input validation, an authenticated, remote attacker could send malformed SOAP packets to the target device. Successful exploit could make some data overwritten, leak device memory and potentially reset a process.
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Analysis
by VulDB Data Team • 02/08/2023
The vulnerability identified as CVE-2017-17186 affects multiple Huawei communication devices including DP300, RP200, TE30, TE40, TE50, and TE60 series across various firmware versions. This DoS vulnerability stems from inadequate input validation mechanisms within the SOAP (Simple Object Access Protocol) processing components of these network devices. The flaw represents a critical security weakness that can be exploited by authenticated remote attackers who possess valid credentials to compromise device stability and functionality.
The technical implementation of this vulnerability resides in the SOAP message handling subsystem where insufficient validation of incoming packet data allows malicious actors to craft malformed SOAP requests that can trigger unexpected behavior in the target device. When these malformed packets are processed, they can cause memory corruption issues that result in data overwriting operations within the device's memory space. This memory manipulation can lead to unpredictable system behavior including process resets, which effectively renders the device temporarily unavailable to legitimate users. The vulnerability specifically affects devices running firmware versions V500R002C00, V600R006C00, and V100R001C10, indicating a widespread issue across multiple product lines and software releases.
From an operational perspective, this vulnerability presents a significant risk to enterprise communication networks as it allows remote attackers with valid authentication credentials to disrupt service availability. The potential for data overwrite operations and memory leakage creates an environment where device stability is compromised, potentially leading to complete service outages that can impact business operations and communication infrastructure. The fact that this vulnerability requires only authenticated access means that it could be exploited by compromised accounts or insider threats, making it particularly concerning for organizations with robust network security measures in place. The process reset capability further amplifies the impact as it can cause immediate disruption to ongoing communication sessions and services.
Organizations affected by this vulnerability should implement immediate mitigations including firmware updates from Huawei to address the input validation gaps in SOAP processing. Network segmentation and access control measures should be enhanced to limit the scope of potential exploitation, while monitoring systems should be deployed to detect unusual SOAP traffic patterns that might indicate attempted exploitation. The vulnerability aligns with CWE-20, which describes improper input validation, and falls under ATT&CK technique T1499.002 for network denial of service attacks. Security teams should also consider implementing intrusion detection systems specifically tuned to identify malformed SOAP packets and monitor for memory corruption indicators that may precede process resets. Regular security assessments and vulnerability scanning should be conducted to ensure comprehensive protection against similar vulnerabilities in other network components.