CVE-2019-16072 Scanner

Enigma NMS is a network management system used by organizations to monitor, manage, and optimize their network resources. It is commonly deployed in enterprise environments for comprehensive network performance analysis. The product is utilized mainly by IT professionals and network administrators for its robust monitoring capabilities. Enigma NMS includes features for alerting, reporting, and real-time diagnostics to enhance network oversight. It offers integration capabilities with various network protocols and devices, increasing its applicability across diverse infrastructures. Its primary goal is to ensure network health and performance through effective resource management.

The OS Command Injection vulnerability in Enigma NMS allows attackers to execute arbitrary code on the server. This type of vulnerability arises due to improper input validation, letting attackers manipulate shell metacharacters. In this specific case, the vulnerability is in the `discover_and_manage` CGI script. An attacker can exploit this flaw by crafting a malicious input to the `ip_address` parameter, leading to unauthorized command execution. Such vulnerabilities are critical as they enable remote code execution, significantly escalating an organization's risk profile. Attackers could exploit this to pivot deeper into the network, accessing sensitive data or services.

Technically, the vulnerability exists because the application does not properly neutralize special characters in the `ip_address` field during a specific action within the SNMP browser. Attackers can insert shell commands that get executed with the same privileges as the application. They leverage this by sending crafted HTTP requests to the vulnerable endpoint, `discover_and_manage.cgi`. This vulnerability is triggered by combining shell metacharacters with commands within unsanitized inputs. The issue is specifically tied to how the application concatenates these inputs directly into shell commands. As a result, any injected commands will run on the server if successfully executed.

If exploited, the OS Command Injection vulnerability can lead to severe consequences, including unauthorized system access. Attackers might execute arbitrary commands, install malware, or exfiltrate sensitive information. It poses a high risk of network compromise, allowing the attacker to gain a foothold in the system. Once inside, attackers can escalate privileges, disrupt services, or even pivot to other vulnerable devices within the network. Exploitation greatly undermines network confidentiality, integrity, and availability, potentially leading to operational disruptions and data breaches.

REFERENCES

• https://www.exploit-db.com/exploits/47202
• https://nvd.nist.gov/vuln/detail/CVE-2019-16072
• https://web.archive.org/web/20201220124431/https://www.mogozobo.com/?p=3647