CVE-2022-0079 in showdoc
Summary
by MITRE • 01/03/2022
showdoc is vulnerable to Generation of Error Message Containing Sensitive Information
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Analysis
by VulDB Data Team • 01/05/2022
The vulnerability identified as CVE-2022-0079 affects showdoc applications and represents a critical information disclosure issue that falls under the category of error message handling flaws. This vulnerability allows attackers to exploit poorly constructed error messages that inadvertently reveal sensitive system information to unauthorized users. The flaw manifests when the application generates error responses that contain internal system details, file paths, database information, or other confidential data that should remain hidden from end users. Such exposure creates significant security risks as attackers can leverage this information to plan more sophisticated attacks against the affected system.
From a technical perspective, this vulnerability stems from inadequate error handling mechanisms within the showdoc application framework. When the system encounters an unexpected condition or failure during processing, it generates error messages that are not properly sanitized before being displayed to users. These error messages may contain stack traces, database connection details, server configuration information, or other system-specific data that provides attackers with valuable intelligence for subsequent exploitation attempts. The vulnerability directly maps to CWE-209, which specifically addresses the generation of error messages containing sensitive information, and aligns with ATT&CK technique T1211 where adversaries gather system information through error messages and stack traces.
The operational impact of CVE-2022-0079 extends beyond simple information disclosure, as it provides attackers with foundational intelligence for more advanced exploitation techniques. An attacker who successfully exploits this vulnerability can gain insights into the application's architecture, database structure, and system configuration, which significantly reduces the attack surface for subsequent compromises. This information can be used to identify potential entry points, understand system dependencies, and craft more targeted attacks against the application. The vulnerability particularly affects web applications that do not implement proper error handling procedures, making it a common issue in applications that fail to sanitize error messages before presentation to users.
Mitigation strategies for CVE-2022-0079 require comprehensive error handling improvements within the showdoc application. Organizations should implement standardized error handling protocols that ensure all error messages are generic and do not contain sensitive system information. This includes configuring the application to display user-friendly error messages while logging detailed technical information internally for administrators. The implementation should follow security best practices by ensuring that error responses do not contain stack traces, database connection strings, file paths, or other system-specific details. Additionally, organizations should conduct regular security testing to identify and remediate similar error handling vulnerabilities across their application portfolio, as this type of information disclosure often indicates broader security gaps in application development practices.