CVE-2024-55515 is a critical vulnerability discovered in several Raisecom network devices, specifically the MSG1200, MSG2100E, MSG2200, and MSG2300 models running firmware version 3.90. The vulnerability exists in the web interface component /upload_ipslib.php, which improperly handles file uploads. By manipulating the form name parameter in the upload request, an attacker can bypass file upload restrictions and upload arbitrary files to the device. This can lead to remote code execution, allowing attackers to gain unauthorized control over the affected device. The vulnerability does not require any authentication or user interaction, making it highly exploitable over the network. The CVSS v3.1 base score of 9.8 reflects the critical nature of this flaw, with attack vector being network-based, low attack complexity, no privileges required, and no user interaction needed. The vulnerability is associated with CWE-22, indicating a path traversal or improper file upload vulnerability that allows attackers to write files outside the intended directory. Although no public exploits have been reported yet, the potential impact on network infrastructure devices is severe, as these devices often serve as critical components in telecommunications and enterprise networks. The lack of available patches at the time of disclosure increases the urgency for organizations to implement interim mitigations and monitor for suspicious activity.

The impact of CVE-2024-55515 is severe for organizations worldwide, especially those relying on Raisecom MSG series devices for network infrastructure. Successful exploitation can lead to arbitrary file uploads, enabling remote code execution and full system compromise. This can result in loss of confidentiality, integrity, and availability of the affected devices. Attackers could use compromised devices to intercept or manipulate network traffic, disrupt communications, or pivot to other internal systems, potentially causing widespread network outages or data breaches. Telecommunications providers and enterprises using these devices in critical network segments are particularly vulnerable, as disruption could affect large numbers of users and services. The vulnerability's ease of exploitation without authentication increases the risk of automated attacks and wormable malware propagation. The absence of known exploits currently provides a limited window for mitigation, but the critical severity demands immediate attention to prevent future exploitation.

1. Immediately isolate affected Raisecom MSG1200, MSG2100E, MSG2200, and MSG2300 devices from untrusted networks until mitigations or patches are applied. 2. Monitor network traffic and device logs for unusual file upload attempts or access to /upload_ipslib.php. 3. Restrict access to the web management interface to trusted IP addresses and use network segmentation to limit exposure. 4. Implement Web Application Firewall (WAF) rules to detect and block suspicious file upload patterns targeting the vulnerable endpoint. 5. Disable or restrict file upload functionality on the web interface if not required for normal operations. 6. Contact Raisecom support for official patches or firmware updates addressing this vulnerability and apply them as soon as they become available. 7. Employ intrusion detection/prevention systems (IDS/IPS) signatures tuned to detect exploitation attempts of this vulnerability. 8. Conduct regular security audits and vulnerability scans on network devices to identify and remediate similar issues proactively.