CVE-2020-19363 Scanner

Vtiger CRM is a popular customer relationship management software used by businesses to streamline customer interactions and sales processes. It offers various features like contact management, sales automation, customer support, and calendar scheduling. Vtiger CRM can be deployed on-premises or accessed as a cloud service, making it attractive to organizations of various sizes. Companies utilize it to enhance productivity, maintain customer relationships, and improve overall business efficiency. Its modular architecture allows for extensibility and customization, aligning it with specific business needs. Being an open-source platform, Vtiger CRM is often used by developers to tailor CRM functionalities to unique business requirements.

The Directory Traversal vulnerability in Vtiger CRM allows unauthorized attackers to access restricted directories and files on the server. This occurs due to improper access controls in specific folders such as /libraries and /layouts, where the application fails to restrict the traversal paths. Exploiting this vulnerability can expose sensitive data stored within these directories, potentially leading to information disclosure. Attackers exploiting this flaw do not require authentication, increasing the risk to systems running the vulnerable software. This type of vulnerability underscores the importance of implementing strict access controls within web applications. The vulnerability was reported in version 7.2.0 of Vtiger CRM, necessitating prompt remediation measures.

Technical details of this vulnerability reveal that unauthorized users can navigate through the /libraries and /layouts directories via certain crafted requests. The end points such as '{{BaseURL}}/vtigercrm/libraries/' and '{{BaseURL}}/vtigercrm/layouts/' are particularly susceptible. The issue arises because these directories improperly list contents, including files such as "Index of," "Smarty," "PHPExcel," and others, when accessed. A successful directory listing confirms the vulnerability. The affected installations typically return an HTTP status code of 200 with directory details in the response body, indicating the presence of insufficient directory access protections.

Exploiting this vulnerability can have several serious implications. Attackers may gain access to configuration files, scripts, and possibly sensitive customer data residing in the exposed directories. This could lead to unauthorized data access or further system exploitation through other vulnerabilities that might be present in the listed files. There is a risk of information leakage that can be escalated to unauthorized data manipulation or destruction, affecting the integrity of the system. Further attacks might be facilitated by the information disclosed, potentially undermining the organization's operational security.

REFERENCES

• https://github.com/EmreOvunc/Vtiger-CRM-Vulnerabilities
• https://nvd.nist.gov/vuln/detail/CVE-2020-19363