CVE-2007-3317 in one-X
Summary
by MITRE
The Session Initiation Protocol (SIP) User Access Client (UAC) message parsing module in Avaya one-X Desktop Edition 2.1.0.70 and earlier allows remote attackers to cause a denial of service (device crash) via a malformed SIP message.
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Analysis
by VulDB Data Team • 09/04/2018
The vulnerability identified as CVE-2007-3317 affects the Session Initiation Protocol user access client message parsing functionality within Avaya one-X Desktop Edition version 2.1.0.70 and earlier implementations. This represents a critical security flaw that manifests through improper handling of malformed SIP messages, specifically targeting the message parsing module responsible for processing SIP User Agent Client communications. The vulnerability resides in the client-side SIP processing logic that fails to adequately validate incoming SIP message structures before attempting to parse and process them, creating an exploitable condition that can be leveraged by remote threat actors.
The technical flaw stems from insufficient input validation mechanisms within the SIP message parsing subsystem of the Avaya desktop client application. When the UAC module encounters a malformed SIP message containing unexpected or malformed data structures, the parsing routine does not implement proper error handling or boundary checking mechanisms. This lack of defensive programming practices allows maliciously crafted SIP messages to trigger memory corruption, buffer overflows, or other parsing failures that ultimately result in application termination and device crash conditions. The vulnerability operates at the protocol level where SIP messages are processed, making it particularly dangerous as it can be exploited through standard network communication channels without requiring local access or authentication.
The operational impact of this vulnerability extends beyond simple denial of service conditions to potentially disrupt critical communication infrastructure within enterprise environments that rely on Avaya one-X Desktop Edition for voice and video communication services. Remote attackers can exploit this weakness to repeatedly crash client devices, causing service interruptions that affect business continuity and productivity. The vulnerability affects organizations using legacy versions of the desktop client, particularly those that have not implemented proper patch management procedures or security updates. This creates a persistent risk for enterprises where communication systems are critical to operations, as attackers can maintain sustained disruption through repeated exploitation attempts.
Mitigation strategies for CVE-2007-3317 should prioritize immediate patch deployment to update Avaya one-X Desktop Edition to versions that address the message parsing vulnerability. Network administrators should implement SIP message filtering and validation at network boundaries to prevent malformed messages from reaching affected client systems. The vulnerability aligns with CWE-129 Input Validation and CWE-121 Stack-based Buffer Overflow categories, and can be mapped to ATT&CK technique T1499.004 for network denial of service attacks. Organizations should also consider implementing network segmentation to isolate communication systems and deploy intrusion detection systems capable of identifying and blocking suspicious SIP traffic patterns. Regular security assessments and vulnerability scanning should be conducted to identify unpatched systems and ensure comprehensive protection against similar exploitation vectors.