CVE-2024-27292 Scanner

Docassemble is a widely-used expert system tailored for guided interviews and document assembly, predominantly used by legal professionals, government agencies, and other entities requiring structured document preparation. It's often deployed to streamline and automate workflows, from creating legal forms to conducting complex interviews. The software is preferred for its ability to provide detailed guidance and documentation support, making it critical in legal and bureaucratic applications. With a focus on customization, Docassemble can be adapted for a variety of fields and requirements, often being integrated into larger systems for efficiency. Its flexibility and comprehensive features make it a tool of choice for those needing reliable automated documentation. However, security vulnerabilities, like Local File Inclusion, can jeopardize its reliability and security, underscoring the need for regular updates and vigilance.

Local File Inclusion (LFI) is a significant security flaw that permits attackers to manipulate application URLs to gain unauthorized access to files on the server. This vulnerability can be exploited to view sensitive files, such as configuration files, enabling further attacks on the system. LFI vulnerabilities often arise due to improper handling of file paths in web applications, making robust validation checks critical. The attack vector does not require sophisticated tools; attackers can target insecure parameters by constructing malicious requests. Exploiting LFI can lead to unauthorized data access, privilege escalation, and in some cases, complete server compromise. Therefore, addressing this vulnerability promptly through patches and software updates is vital to maintaining a secure application environment.

The Local File Inclusion vulnerability in Docassemble involves a specific endpoint that allows for arbitrary file inclusion through specifically crafted URL requests. The vulnerable endpoint is the interview parameter, which lacks input validation, thus helping attackers exploit this flaw by appending file paths. This vulnerability can allow attackers to read sensitive files on the server, posing significant security risks. Without restrictions on directory traversal, attackers can access critical system files, compromising the system's integrity. The vulnerability details demonstrate how attackers manipulate incoming URLs to bypass restrictions, thus gaining unauthorized access. Implementing strict input filtering and validation can significantly mitigate these risks, underscoring its importance in maintaining security.

Exploiting the Local File Inclusion vulnerability can lead to unauthorized access to sensitive information, potentially causing data breaches. Attackers can gain insight into server configuration, sensitive files like '/etc/passwd', and application source code. Such access can be leveraged to execute further attacks, including privilege escalation and remote execution. The impact can extend to jeopardizing user privacy, leaking confidential information, and facilitating larger network attacks. Additionally, the unauthorized access may lead to system instability or downtime, affecting the organization’s operations and credibility. Thus, businesses must actively monitor and address such vulnerabilities to safeguard sensitive data and operational integrity.

REFERENCES

• https://tantosec.com/blog/docassemble/
• https://github.com/jhpyle/docassemble/security/advisories/GHSA-jq57-3w7p-vwvv
• https://github.com/jhpyle/docassemble/commit/97f77dc486a26a22ba804765bfd7058aabd600c9