CVE-2007-3368 in Soundpoint IP 650
Summary
by MITRE
Buffer overflow in the HTTP server on the Polycom SoundPoint IP 601 SIP phone with BootROM 3.0.x+ allows remote attackers to cause a denial of service (device reboot) via a malformed CGI parameter.
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Analysis
by VulDB Data Team • 10/25/2017
The vulnerability identified as CVE-2007-3368 represents a critical buffer overflow flaw within the HTTP server implementation of the Polycom SoundPoint IP 601 SIP phone running BootROM versions 3.0.x and later. This device operates within enterprise communication environments where VoIP phones serve as essential components of unified communications infrastructure, making such vulnerabilities particularly dangerous from a security perspective. The affected device is a networked telephone that supports SIP protocol for voice communications and includes web-based management capabilities through its embedded HTTP server.
The technical flaw manifests as a classic buffer overflow condition when processing incoming HTTP requests containing malformed CGI parameters. When the HTTP server receives a specially crafted request with an oversized or improperly formatted parameter value, it fails to properly validate input boundaries before copying data into fixed-length buffers within its memory structure. This programming error allows an attacker to overwrite adjacent memory locations, potentially corrupting critical system data structures or execution pointers. The vulnerability specifically affects the device's web interface functionality, which is commonly used for configuration management and firmware updates, making it a prime target for exploitation attempts.
The operational impact of this vulnerability extends beyond simple denial of service conditions, as it can cause complete device reboot cycles that disrupt critical communication services within enterprise networks. In environments where these phones serve as primary communication endpoints for business operations, repeated reboots can lead to significant productivity losses and potential security exposure during system recovery periods. The remote nature of the attack means that threat actors can exploit this vulnerability from external network positions without requiring physical access or network credentials, significantly expanding the attack surface. This characteristic aligns with attack patterns documented in the MITRE ATT&CK framework under the 'Initial Access' and 'Execution' phases, where adversaries leverage network-based vulnerabilities to establish persistent access or cause operational disruption.
The vulnerability demonstrates poor input validation practices that would typically be classified under CWE-121, which addresses buffer overflow conditions in stack-based memory structures. The attack vector involves sending malicious HTTP requests through the device's web interface, making it a web application security issue that affects embedded systems. Organizations utilizing Polycom SoundPoint IP 601 devices should implement immediate network segmentation to isolate these devices from critical internal systems and apply firmware updates from Polycom to address the buffer overflow condition. Network monitoring should be enhanced to detect unusual traffic patterns or repeated connection attempts that might indicate exploitation attempts. The security community has recognized such vulnerabilities as particularly dangerous in IoT and embedded systems environments where patch management is often limited and device uptime is critical for business operations.