CVE-2020-15610: 
Control Web Panel vulnerability analysis and mitigation

This vulnerability (CVE-2020-15610) affects CentOS Web Panel version cwp-e17.0.9.8.923. The vulnerability allows remote attackers to execute arbitrary code without requiring authentication. The vulnerability was discovered in June 2020 and publicly disclosed on July 28, 2020 (ZDI Advisory).

The vulnerability exists within the ajax_php_pecl.php file of CentOS Web Panel. The specific flaw occurs when parsing the modulo parameter, where the process fails to properly validate a user-supplied string before using it to execute a system call. The vulnerability has been assigned a CVSS v3.1 base score of 9.8 (Critical) with the vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H (NVD).

An attacker can leverage this vulnerability to execute arbitrary code in the context of root, giving them complete control over the affected system. The high CVSS score reflects the critical nature of this vulnerability, as it requires no authentication and can lead to full system compromise (ZDI Advisory).

The vulnerability is highly exploitable as it requires no authentication or user interaction. The attack can be performed remotely over the network, making it particularly dangerous. The vulnerability was tracked as ZDI-CAN-9728 before public disclosure (NVD).

Given the nature of the vulnerability, the primary mitigation strategy is to restrict interaction with the service to trusted machines. This can be accomplished through firewall rules and whitelisting to ensure that only clients and servers with legitimate procedural relationships can communicate with the service (ZDI Advisory).