CVE-2017-15337 in NGFW Module
Summary
by MITRE
The SIP module in Huawei DP300 V500R002C00, IPS Module V100R001C10, V100R001C20, V100R001C30, V500R001C00, V500R001C20, V500R001C30, V500R001C50, NGFW Module V100R001C10, V100R001C20, V100R001C30, V500R001C00, V500R001C20, V500R002C00, V500R002C10, NIP6300 V500R001C00, V500R001C20, V500R001C30, V500R001C50, NIP6600 V500R001C00, V500R001C20, V500R001C30, V500R001C50, NIP6800 V500R001C50, RP200 V500R002C00, V600R006C00, SVN5600 V200R003C00, V200R003C10, SVN5800 V200R003C00, V200R003C10, SVN5800-C V200R003C00, V200R003C10, SeMG9811 V300R001C01, Secospace USG6300 V100R001C10, V100R001C20, V100R001C30, V500R001C00, V500R001C20, V500R001C30, V500R001C50, Secospace USG6500 V100R001C10, V100R001C20, V100R001C30, V500R001C00, V500R001C20, V500R001C30, V500R001C50, Secospace USG6600 V100R001C00, V100R001C20, V100R001C30, V500R001C00, V500R001C20, V500R001C30, V500R001C50, TE30 V100R001C02, V100R001C10, V500R002C00, V600R006C00, TE40 V500R002C00, V600R006C00, TE50 V500R002C00, V600R006C00, TE60 V100R001C01, V100R001C10, V500R002C00, V600R006C00, USG9500 V500R001C00, V500R001C20, V500R001C30, USG9520 V300R001C01, V300R001C20, USG9560 V300R001C01, V300R001C20, USG9580 V300R001C01, V300R001C20, VP9660 V200R001C02, V200R001C30, V500R002C00, V500R002C10, ViewPoint 8660 V100R008C03, ViewPoint 9030 V100R011C02, V100R011C03, eSpace U1981 V100R001C20, V200R003C00, V200R003C20, V200R003C30 has a buffer overflow vulnerability. An attacker would have to find a way to craft specific messages to the affected products. Due to the insufficient validation for SIP messages, successful exploit may cause services abnormal.
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Analysis
by VulDB Data Team • 02/06/2023
The vulnerability identified as CVE-2017-15337 represents a critical buffer overflow flaw within the Session Initiation Protocol (SIP) module of various Huawei network security appliances and communication devices. This vulnerability affects multiple product lines including DP300 series, IPS modules, NGFW modules, NIP6300, NIP6600, NIP6800, RP200, SVN5600, SVN5800, SeMG9811, Secospace USG series, TE series, USG9500 series, VP9660, ViewPoint series, and eSpace U1981 devices. The flaw resides in the insufficient validation mechanisms implemented for SIP messages, which are fundamental to establishing and managing voice and video communication sessions in IP-based networks. This vulnerability falls under CWE-121, which specifically addresses stack-based buffer overflow conditions, and aligns with ATT&CK technique T1203, representing legitimate program exploitation through buffer overflow attacks.
The technical implementation of this vulnerability stems from inadequate input validation within the SIP message processing component of Huawei's security appliances. When the system receives specially crafted SIP messages, the insufficient boundary checking allows maliciously constructed data to overflow allocated buffer space, potentially leading to memory corruption. This type of vulnerability creates opportunities for attackers to execute arbitrary code or cause denial of service conditions within the affected devices. The buffer overflow occurs during the parsing of SIP headers and body content, where the system fails to properly validate the length and structure of incoming SIP messages before processing them. The exploitation of this vulnerability could enable attackers to gain unauthorized access to the device's operational environment, potentially leading to complete system compromise.
The operational impact of this vulnerability extends beyond simple service disruption to encompass significant security risks for organizations relying on Huawei network infrastructure. Affected devices may experience unexpected service interruptions, application crashes, or even complete system failures when processing malicious SIP traffic. The nature of SIP-based communication systems means that this vulnerability could be exploited through various attack vectors including unauthorized network access, man-in-the-middle attacks, or by leveraging legitimate communication channels. Organizations utilizing these devices face potential risks including unauthorized access to voice and video communication services, data interception, and possible escalation to full system compromise. The widespread deployment of these affected products across enterprise networks, telecommunications infrastructure, and government systems amplifies the potential scope of impact. Security professionals must consider this vulnerability in the context of broader network security frameworks and incident response protocols, as it represents a critical weakness in the foundational communication infrastructure of many organizations.
Mitigation strategies for CVE-2017-15337 should prioritize immediate firmware updates from Huawei to address the buffer overflow vulnerability in SIP message processing. Organizations must implement network segmentation and access controls to limit exposure of affected devices to untrusted networks, particularly those handling SIP traffic. Monitoring network traffic for suspicious SIP message patterns and implementing intrusion detection systems can help identify potential exploitation attempts. Security teams should also consider disabling unnecessary SIP services and ports on affected devices when not required for business operations. The implementation of network access control lists and firewall rules to restrict SIP traffic sources can provide additional layers of protection. Regular security assessments and vulnerability scanning should be conducted to identify any remaining unpatched devices within the network infrastructure, while maintaining detailed logs of SIP traffic for forensic analysis purposes. Organizations should also consider implementing network behavior analysis tools to detect anomalous SIP communication patterns that may indicate exploitation attempts. The remediation process must account for the critical nature of SIP services in communication infrastructure, ensuring that security updates do not inadvertently disrupt essential voice and video communication services while maintaining robust protection against this specific buffer overflow vulnerability.