CVE-2022-31202 in Web
Summary
by MITRE • 07/18/2022
The export function in SoftGuard Web (SGW) before 5.1.5 allows directory traversal to read an arbitrary local file via export or man.tcl.
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Analysis
by VulDB Data Team • 08/06/2022
The vulnerability identified as CVE-2022-31202 affects SoftGuard Web (SGW) versions prior to 5.1.5, specifically within its export functionality. This directory traversal flaw represents a critical security weakness that enables unauthorized access to local system files through manipulation of the export or man.tcl parameters. The vulnerability stems from inadequate input validation and sanitization within the web application's file handling mechanisms, allowing attackers to craft malicious requests that bypass normal file access controls.
The technical exploitation of this vulnerability occurs when the application fails to properly validate user-supplied input passed to the export function or man.tcl handler. Attackers can manipulate the input parameters to traverse directory structures and access arbitrary local files on the server. This type of vulnerability falls under the Common Weakness Enumeration category CWE-22, which specifically addresses directory traversal or path traversal attacks. The flaw demonstrates a classic lack of proper input validation and sanitization, where user-controllable data is directly incorporated into file system operations without adequate security checks.
The operational impact of CVE-2022-31202 is severe and multifaceted, potentially exposing sensitive system information including configuration files, database credentials, application source code, and other confidential data. An attacker who successfully exploits this vulnerability could gain access to critical system resources that would normally be protected from external access. The vulnerability affects the confidentiality and integrity of the affected system, as unauthorized file access could lead to data breaches, system compromise, or further exploitation opportunities. This weakness could also facilitate privilege escalation attacks when combined with other vulnerabilities, as attackers might gain access to system files that contain authentication credentials or other sensitive information.
Mitigation strategies for CVE-2022-31202 should focus on implementing proper input validation and sanitization mechanisms within the affected application. Organizations should immediately upgrade to SoftGuard Web version 5.1.5 or later, which includes patches addressing this directory traversal vulnerability. Additional protective measures include implementing proper access controls, restricting file system permissions, and employing web application firewalls that can detect and block malicious directory traversal attempts. The remediation process should also involve thorough code reviews to identify similar input validation weaknesses throughout the application. Security teams should monitor for exploitation attempts through log analysis and implement principle of least privilege configurations to minimize potential damage from successful attacks. This vulnerability aligns with ATT&CK technique T1059.007 for command and scripting interpreter and T1566.001 for malicious file execution, highlighting the need for comprehensive defensive measures across multiple attack vectors.