CVE-2022-43711 in XperienCentral
Summary
by MITRE • 07/26/2023
Interactive Forms (IAF) in GX Software XperienCentral versions 10.29.1 until 10.33.0 was vulnerable to cross site scripting attacks (XSS) because the CSP header uses eval() in the script-src.
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Analysis
by VulDB Data Team • 08/18/2023
The vulnerability identified as CVE-2022-43711 affects Interactive Forms within GX Software XperienCentral versions ranging from 10.29.1 through 10.33.0. This represents a significant security weakness that exposes organizations using this platform to potential cross site scripting attacks. The flaw specifically resides in how the Content Security Policy (CSP) header is implemented within the application's security framework, creating an avenue for malicious actors to execute arbitrary JavaScript code in the context of authenticated user sessions.
The technical root cause of this vulnerability stems from the improper implementation of the CSP header where the script-src directive explicitly permits the use of eval() function within JavaScript execution contexts. This dangerous practice directly violates secure coding principles and industry best practices for web application security. According to CWE-94, the vulnerability manifests as an insufficient enforcement of security policies that allows for code injection through the use of dynamic code execution functions like eval(). The presence of eval() in the CSP configuration creates a situation where attackers can bypass security restrictions and inject malicious scripts that will execute with the privileges of the affected user.
The operational impact of this vulnerability extends beyond simple XSS attacks, as it enables attackers to steal session cookies, perform actions on behalf of authenticated users, and potentially escalate privileges within the application. This weakness particularly affects organizations that rely on XperienCentral for form processing and user interaction, as attackers could exploit this flaw to gain unauthorized access to sensitive data or system functionality. The vulnerability's impact is amplified by the fact that it affects a range of versions, meaning organizations across multiple releases remain at risk. Attackers can leverage this weakness to execute persistent XSS payloads that can remain active for extended periods, potentially leading to long-term compromise of user sessions and data integrity.
Organizations should immediately implement mitigations including updating to patched versions of XperienCentral where available, or implementing alternative CSP configurations that do not permit eval() usage in script execution contexts. The recommended approach involves modifying the Content Security Policy to use more restrictive directives such as script-src 'self' 'unsafe-inline' 'unsafe-eval' and instead implementing a more robust security model that avoids dynamic code execution. Additionally, organizations should consider implementing additional layers of security including web application firewalls, input validation mechanisms, and regular security assessments to identify similar vulnerabilities in their application environments. This vulnerability aligns with ATT&CK technique T1566.001 which covers social engineering through malicious content, and represents a critical weakness in the application's defense in depth strategy. The vulnerability's classification under CWE-94 emphasizes the importance of proper input validation and the avoidance of dangerous JavaScript functions in security-sensitive contexts. Organizations should also consider implementing automated security scanning tools that can detect similar CSP misconfigurations across their web applications to prevent future occurrences of this class of vulnerability.