CVE-2022-28480 in ALLMediaServer
Summary
by MITRE • 04/29/2022
ALLMediaServer 1.6 is vulnerable to Buffer Overflow via MediaServer.exe.
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Analysis
by VulDB Data Team • 05/04/2022
The vulnerability identified as CVE-2022-28480 affects ALLMediaServer version 1.6 and represents a critical buffer overflow flaw within the MediaServer.exe component. This type of vulnerability occurs when a program attempts to write more data to a buffer than it can accommodate, leading to adjacent memory locations being overwritten. The issue specifically manifests in the media server application that handles multimedia content delivery, making it a significant concern for organizations relying on media streaming services. The buffer overflow vulnerability creates potential entry points for malicious actors to execute arbitrary code on affected systems.
The technical implementation of this vulnerability stems from inadequate input validation within the MediaServer.exe executable. When processing multimedia content or network requests, the application fails to properly bounds-check data inputs before storing them in fixed-length buffers. This flaw allows attackers to craft specially formatted media files or network packets that trigger the overflow condition. The vulnerability is classified under CWE-121 as a stack-based buffer overflow, where the overflow occurs in stack memory and can potentially overwrite return addresses, function pointers, or other critical program state information. The attack vector is typically initiated through network-based interactions with the media server, making it accessible to remote threat actors without requiring local system access.
The operational impact of this vulnerability extends beyond simple exploitation as it can enable complete system compromise. Successful exploitation of the buffer overflow could allow attackers to execute malicious code with the privileges of the MediaServer.exe process, which typically runs with elevated permissions. This scenario creates opportunities for privilege escalation attacks, lateral movement within networks, and potential data exfiltration. The vulnerability affects organizations using ALLMediaServer for media streaming services, digital signage, or home entertainment systems, making it particularly concerning for both enterprise and consumer environments. Organizations relying on this media server for critical operations face significant risk of service disruption and unauthorized access.
Mitigation strategies for CVE-2022-28480 should prioritize immediate patching of the ALLMediaServer software to version 1.7 or later, which contains the necessary fixes for the buffer overflow vulnerability. Network segmentation and access controls should be implemented to limit exposure of the media server to trusted networks only. Regular security monitoring and intrusion detection systems should be configured to detect anomalous network traffic patterns that may indicate exploitation attempts. Additionally, implementing application whitelisting policies can prevent unauthorized execution of malicious payloads, while regular vulnerability assessments should be conducted to identify similar issues in other media server applications. The ATT&CK framework categorizes this vulnerability under T1059.007 for command and scripting interpreter, as exploitation may involve executing malicious code through the compromised media server process. Organizations should also consider implementing network-based firewalls and access control lists to restrict access to the media server ports and services, reducing the attack surface for potential exploitation attempts.