CVE-2018-1999 in Business Automation Workflow
Summary
by MITRE
IBM Business Automation Workflow 18.0.0.0, 18.0.0.1, and 18.0.0.2 could reveal sensitive version information about the server from error pages that could aid an attacker in further attacks against the system. IBM X-Force ID: 154889.
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Analysis
by VulDB Data Team • 08/27/2023
This vulnerability resides in IBM Business Automation Workflow versions 18.0.0.0 through 18.0.0.2 where the system inadvertently exposes sensitive version information through error pages generated during system operations. The flaw represents a classic information disclosure vulnerability that occurs when error responses contain detailed server metadata including version numbers and build identifiers. Such exposure provides attackers with critical intelligence about the target system's configuration and software stack, enabling them to craft targeted attacks against known vulnerabilities specific to those versions. The vulnerability aligns with CWE-200, which categorizes information exposure issues where systems unintentionally reveal internal details that could be exploited by malicious actors. From an operational perspective, this vulnerability significantly weakens the security posture by reducing the attack surface and providing threat actors with precise targeting capabilities.
The technical implementation of this flaw involves the web application's error handling mechanism failing to sanitize responses before returning them to clients. When system errors occur during processing, the application generates error pages that include server version information, potentially including patch levels, build numbers, and internal identifiers. This occurs because the error handling code does not properly filter or remove version-specific metadata from the response payload. Attackers can exploit this by triggering specific error conditions or by directly accessing endpoints that generate these error responses, thereby obtaining detailed system information that would normally remain hidden. The vulnerability demonstrates poor input validation and output sanitization practices that violate fundamental security principles.
The operational impact of this vulnerability extends beyond simple information disclosure as it enables sophisticated attack vectors including version-specific exploit development and targeted exploitation. Threat actors can use the revealed version information to identify known vulnerabilities in the specific IBM Business Automation Workflow versions, potentially leading to privilege escalation, data theft, or system compromise. The exposure of build identifiers may also reveal the presence of specific patches or the absence of critical security updates, allowing attackers to determine if the system is vulnerable to previously disclosed exploits. This type of information leakage significantly reduces the effectiveness of security controls and provides attackers with a clear roadmap for system penetration. The vulnerability's impact is particularly concerning in environments where multiple versions of the software coexist or where the system is part of a larger enterprise infrastructure.
Mitigation strategies for this vulnerability should focus on implementing proper error handling practices that prevent version information from appearing in error responses. Organizations should configure the application server to sanitize all error messages and ensure that generic error pages are returned instead of detailed system information. The implementation of security headers including X-Frame-Options, X-Content-Type-Options, and Content Security Policy can help prevent information leakage through various attack vectors. Regular security assessments should verify that error handling mechanisms properly filter sensitive information, and application firewalls or web application firewalls should be configured to monitor and block requests that might trigger information disclosure responses. Additionally, implementing proper logging and monitoring of error conditions can help detect potential exploitation attempts. This vulnerability represents a common weakness in web applications and aligns with ATT&CK technique T1082, which covers system information discovery, emphasizing the need for comprehensive security controls that prevent unauthorized information exposure.