CVE-2010-2218 in Flash Media Server
Summary
by MITRE
Adobe Flash Media Server (FMS) before 3.0.6, and 3.5.x before 3.5.4, allows attackers to cause a denial of service via unspecified vectors, related to a "JS method issue."
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Analysis
by VulDB Data Team • 09/22/2021
Adobe Flash Media Server versions prior to 3.0.6 and 3.5.x versions prior to 3.5.4 contained a vulnerability classified as a denial of service flaw related to JavaScript method handling within the media server environment. This vulnerability stems from improper validation and handling of JavaScript methods during media processing operations, creating a potential attack surface where malicious inputs could trigger unexpected behavior in the server runtime. The unspecified vectors suggest that multiple attack paths exist through different JavaScript method invocations or method chaining patterns that could lead to service disruption. This issue represents a classic example of a buffer overflow or memory corruption vulnerability within scripting engine components, where the JavaScript interpreter fails to properly validate method parameters or handle malformed input sequences that could cause the server process to terminate unexpectedly or become unresponsive. The vulnerability aligns with CWE-121, which describes heap-based buffer overflow conditions, and CWE-122, which covers buffer overflow vulnerabilities in heap memory. From an operational perspective, this vulnerability could enable attackers to remotely disrupt media streaming services, potentially affecting content delivery networks and media applications that rely on Flash Media Server for real-time media processing and distribution. The impact extends beyond simple service interruption as it could provide a foothold for further exploitation or serve as a precursor to more sophisticated attacks targeting the underlying media server infrastructure. Attackers could leverage this vulnerability to exhaust server resources or cause process crashes, leading to complete service unavailability for legitimate users and potentially disrupting business operations that depend on continuous media streaming capabilities.
The technical nature of this vulnerability demonstrates the inherent risks associated with complex scripting environments within media server applications, where JavaScript methods are often used to process and manipulate media content dynamically. The flaw likely occurs when the server's JavaScript engine fails to properly validate method signatures or parameter types during execution, allowing malformed or specially crafted JavaScript method calls to trigger memory corruption or invalid memory access patterns. This particular vulnerability type is commonly exploited in server-side environments where scripting languages are integrated with core application functionality, creating opportunities for attackers to manipulate execution flow through carefully constructed input sequences. The lack of specific vector details in the original description suggests that the vulnerability may be exploitable through multiple attack vectors including malformed media metadata, crafted JavaScript method invocations, or manipulated streaming parameters that cause the server to process invalid method calls. Organizations utilizing Adobe Flash Media Server should consider implementing network segmentation and access controls to limit exposure to this vulnerability, while also ensuring proper patch management protocols are in place to address the underlying JavaScript engine issues. The vulnerability's classification under the ATT&CK framework would align with T1499, which covers network denial of service attacks, and potentially T1059, which covers command and scripting interpreter techniques, as the exploitation involves manipulation of scripting environments within the server. Remediation efforts should focus on updating to patched versions of Adobe Flash Media Server, implementing proper input validation for all JavaScript method calls, and monitoring for unusual patterns of service disruption or resource exhaustion that could indicate exploitation attempts.
From a security architecture standpoint, this vulnerability highlights the importance of robust input validation and secure coding practices within media processing systems. The flaw demonstrates how seemingly benign scripting functionality can become a critical security weakness when proper validation mechanisms are absent or insufficient. The JavaScript method handling issue suggests that the server's execution environment may not properly isolate or sanitize method parameters before processing, allowing potentially malicious input to influence execution behavior. This vulnerability type is particularly concerning in media server environments where dynamic content processing is common, as it can enable attackers to disrupt services without requiring extensive privileges or direct system access. The service disruption potential of this vulnerability means that even unauthenticated attackers could cause significant operational impact, making it a high-priority concern for organizations maintaining media streaming infrastructure. Organizations should implement comprehensive monitoring solutions to detect anomalous JavaScript method usage patterns and establish incident response procedures for handling denial of service events. The vulnerability also underscores the need for regular security assessments of media server environments, particularly focusing on scripting engine security and method parameter validation. Proper security hardening measures including disabling unnecessary JavaScript functionality, implementing strict access controls, and maintaining up-to-date security patches are essential for mitigating this type of vulnerability. Additionally, organizations should consider implementing network-based intrusion detection systems that can identify exploitation attempts targeting known vulnerabilities in Flash Media Server implementations.