CVE-2012-0741 in Rational Policy Tester
Summary
by MITRE
IBM Security AppScan Enterprise before 8.6.0.2 and Rational Policy Tester before 8.5.0.3 do not validate X.509 certificates during use of the Manual Explore Proxy feature, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary certificate.
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Analysis
by VulDB Data Team • 03/02/2018
The vulnerability identified as CVE-2012-0741 affects IBM Security AppScan Enterprise versions prior to 8.6.0.2 and Rational Policy Tester versions prior to 8.5.0.3, representing a critical security flaw in the certificate validation process within the Manual Explore Proxy feature. This weakness stems from the absence of proper X.509 certificate validation mechanisms that should normally verify the authenticity and trustworthiness of SSL/TLS certificates used in secure communications. The flaw operates at the core of secure network communication protocols where certificate validation is essential for maintaining trust between clients and servers. When certificates are not properly validated, the security infrastructure that relies on these certificates becomes fundamentally compromised, creating an opening for malicious actors to exploit the system.
The technical implementation of this vulnerability occurs within the proxy functionality of these security tools, where the Manual Explore Proxy feature is designed to allow security professionals to manually explore and test web applications for vulnerabilities. However, the absence of certificate validation in this specific context means that the proxy accepts any certificate presented to it without proper verification of its authenticity, issuer, or trust chain. This flaw specifically targets the SSL/TLS certificate validation process, which is a fundamental component of secure communications as defined by industry standards and protocols. The vulnerability aligns with CWE-295, which addresses "Improper Certificate Validation," and represents a clear failure in the certificate validation mechanism that should be enforced by any secure communication system. The attack vector is particularly dangerous because it allows attackers to perform man-in-the-middle attacks by presenting arbitrary certificates that the vulnerable tools will accept without question.
The operational impact of this vulnerability extends beyond simple security concerns to potentially compromise the entire security testing process that these tools are designed to support. Security professionals who rely on these tools for vulnerability assessment and penetration testing may unknowingly be operating within a compromised environment where their testing activities could be intercepted or manipulated by attackers. This creates a dangerous situation where the very tools meant to identify security weaknesses become vulnerable to exploitation, potentially allowing attackers to gain access to sensitive information or manipulate test results. The vulnerability creates a false sense of security for users who may believe their systems are being properly tested while simultaneously being vulnerable to active attacks. This flaw particularly impacts organizations that depend on these security tools for compliance testing and vulnerability assessment, as the compromised tools could be used to generate false positive or negative results during security assessments.
Organizations should immediately implement mitigations including upgrading to the patched versions of IBM Security AppScan Enterprise 8.6.0.2 and Rational Policy Tester 8.5.0.3, which contain the necessary certificate validation improvements. System administrators should also consider implementing additional network monitoring and anomaly detection measures to identify potential man-in-the-middle attacks targeting these vulnerable tools. The remediation process should include comprehensive testing of the upgraded systems to ensure that certificate validation is properly functioning and that the proxy features operate within secure parameters. From an ATT&CK framework perspective, this vulnerability relates to technique T1566.001, "Phishing: Spearphishing Attachment," and T1046, "Network Service Scanning," as attackers could leverage this weakness to establish persistent access points within network security testing environments. Organizations should also conduct thorough security audits of their security tooling to identify any other potentially vulnerable components that might suffer from similar certificate validation weaknesses. The implementation of proper certificate pinning mechanisms and enhanced network monitoring would provide additional layers of protection against exploitation of this vulnerability.