CVE-2017-15336 in DPxxx
Summary
by MITRE
The SIP backup feature 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 may send specially crafted messages to the affected products. Due to the insufficient validation of some values 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-2017-15336 represents a critical buffer overflow flaw within the Session Initiation Protocol backup functionality of various Huawei network security appliances and communication devices. This weakness 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 systems, and eSpace U1981 devices. The vulnerability stems from inadequate input validation mechanisms within the SIP message processing subsystem, particularly when handling backup-related communications. This flaw operates at the application layer and can be exploited through crafted SIP protocol messages that exceed allocated buffer boundaries.
The technical nature of this vulnerability aligns with CWE-121, which describes heap-based buffer overflow conditions, and CWE-122, which covers stack-based buffer overflow scenarios. The implementation flaw occurs during the processing of SIP backup operations where the system fails to properly validate the length and content of incoming SIP message parameters before copying them into fixed-size buffers. This insufficient validation creates an exploitable condition where maliciously constructed SIP messages can overwrite adjacent memory locations, potentially leading to arbitrary code execution or service disruption. The vulnerability exists in the SIP parsing logic that handles backup configuration synchronization messages, making it particularly dangerous in environments where backup functionality is actively utilized.
Operationally, this vulnerability presents significant risks to network security infrastructure as it allows remote attackers to potentially compromise the integrity and availability of affected systems. Successful exploitation could result in complete system compromise, enabling attackers to execute malicious code with the privileges of the affected service processes. The impact extends beyond simple service disruption to include potential data exfiltration, lateral movement within the network, and establishment of persistent backdoors. Attackers could leverage this vulnerability to gain unauthorized access to network security devices that are typically considered critical infrastructure components, potentially compromising the entire network security posture. The widespread affected product portfolio means that organizations with diverse Huawei security infrastructure could simultaneously face exposure to this threat.
Mitigation strategies should prioritize immediate firmware updates from Huawei to address the buffer overflow vulnerability through proper input validation and memory management controls. Organizations should implement network segmentation to limit access to SIP backup functionality and restrict communication paths to only trusted sources. Additional protective measures include deploying intrusion detection systems with signatures specific to SIP protocol anomalies, implementing strict access controls for backup configurations, and conducting regular vulnerability assessments of network security infrastructure. The ATT&CK framework categorizes this vulnerability under T1071.004 for application layer protocol manipulation and T1059.007 for command and scripting interpreter usage, indicating potential exploitation paths through protocol manipulation and command execution. Network administrators should also consider disabling SIP backup features when not actively required and maintain comprehensive monitoring of SIP traffic for anomalous patterns that could indicate exploitation attempts.