CVE-2020-2524 in Knowledge
Summary
by MITRE
Vulnerability in the Oracle Knowledge product of Oracle Knowledge (component: InQuira Search). Supported versions that are affected are 8.6.0-8.6.3. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Knowledge. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Knowledge. CVSS 3.0 Base Score 5.9 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H).
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Analysis
by VulDB Data Team • 05/25/2024
The vulnerability identified as CVE-2020-2524 affects Oracle Knowledge products, specifically within the InQuira Search component of the Oracle Knowledge suite. This issue exists in versions 8.6.0 through 8.6.3, representing a significant availability risk for organizations relying on this knowledge management platform. The vulnerability manifests as a remote code execution flaw that can be exploited by unauthenticated attackers, eliminating the need for prior authentication or privileged access to initiate an attack. The affected component processes search queries and user inputs through the HTTP protocol, creating an attack surface that can be leveraged by malicious actors without requiring any credentials or specialized access privileges.
The technical nature of this vulnerability stems from inadequate input validation and sanitization within the InQuira Search functionality. Attackers can craft malicious HTTP requests that, when processed by the vulnerable Oracle Knowledge application, trigger system instability leading to denial of service conditions. The CVSS 3.0 scoring of 5.9 indicates a moderate to high severity impact, with the availability impact rated as high due to the potential for complete system disruption. The attack vector requires network access via HTTP, making it accessible from any location with internet connectivity, while the high attack complexity suggests that specialized knowledge or tools may be required to successfully exploit the flaw. The vulnerability's unauthenticated nature means that any network-connected attacker can potentially compromise the system without needing to establish prior credentials or access rights.
The operational impact of this vulnerability extends beyond simple service disruption, as successful exploitation can result in sustained system unavailability that affects business operations and knowledge access. Organizations utilizing Oracle Knowledge for critical information management, customer support, or internal documentation systems face significant risk of operational downtime that could impact productivity, customer service delivery, and information availability. The vulnerability's potential to cause repeated crashes or hangs creates a persistent threat that may require system restarts or manual intervention to restore normal operations. This type of vulnerability particularly affects enterprise environments where knowledge management systems serve as critical infrastructure components for information sharing and support processes.
Mitigation strategies for CVE-2020-2524 should prioritize immediate patching of affected systems to address the root cause of the vulnerability. Organizations should implement network segmentation and access controls to limit exposure of the affected components to untrusted networks, while monitoring network traffic for suspicious HTTP requests that may indicate exploitation attempts. The vulnerability aligns with CWE-20, which addresses improper input validation, and falls under ATT&CK technique T1499.004 for network denial of service attacks. Security teams should also implement intrusion detection systems to monitor for patterns associated with this specific vulnerability, while maintaining regular vulnerability assessments to identify similar issues within the broader Oracle Knowledge ecosystem. Regular security updates and patch management processes should be strengthened to prevent similar vulnerabilities from remaining unaddressed in future releases, as this flaw represents a failure in proper input sanitization and validation controls within the application's search processing functionality.