CVE-2018-2760 in HTTP Server
Summary
by MITRE
Vulnerability in the Oracle HTTP Server component of Oracle Fusion Middleware (subcomponent: OSSL Module). Supported versions that are affected are 12.1.3 and 12.2.1.2. Difficult to exploit vulnerability allows unauthenticated attacker with network access via HTTPS to compromise Oracle HTTP Server. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all Oracle HTTP Server accessible data. CVSS 3.0 Base Score 5.9 (Confidentiality impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N).
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Analysis
by VulDB Data Team • 03/02/2023
The vulnerability identified as CVE-2018-2760 resides within the Oracle HTTP Server component of Oracle Fusion Middleware, specifically within the OSSL Module subcomponent. This flaw represents a significant security concern affecting Oracle HTTP Server versions 12.1.3 and 12.2.1.2, which are part of the broader Oracle Fusion Middleware suite. The vulnerability's classification as difficult to exploit indicates that while the attack vector is not trivial, it remains a serious threat that could be leveraged by determined adversaries. The security implications extend beyond simple data exposure, as successful exploitation could lead to complete compromise of the affected server's accessible data, making it a critical concern for organizations relying on Oracle Fusion Middleware infrastructure.
The technical nature of this vulnerability stems from insufficient security controls within the OSSL Module, which governs the server's SSL/TLS handling capabilities. This module's weakness allows an unauthenticated attacker to establish network connections via HTTPS and potentially gain unauthorized access to sensitive data stored within or accessible through the Oracle HTTP Server. The CVSS 3.0 scoring system assigns a base score of 5.9, reflecting the moderate to high severity of the vulnerability, with the primary impact categorized as confidentiality compromise. The attack vector requires network access via HTTPS, suggesting that the vulnerability could be exploited from external networks without requiring prior authentication credentials, making it particularly concerning for publicly accessible servers.
The operational impact of CVE-2018-2760 extends beyond immediate data compromise to potentially enable broader system infiltration and lateral movement within affected networks. Organizations utilizing affected Oracle HTTP Server versions face risks of unauthorized data access, potential information disclosure, and possible complete system compromise. The vulnerability's characteristics align with CWE-284, which addresses improper access control issues, and could potentially map to ATT&CK technique T1071.004 for application layer protocol usage. The unauthenticated nature of the attack means that even organizations with robust authentication controls may be vulnerable, as the initial exploitation does not require valid credentials, making this vulnerability particularly dangerous in environments where server exposure to external networks is unavoidable.
Organizations should prioritize immediate remediation efforts by applying the relevant Oracle Critical Patch Updates or patches specifically addressing this vulnerability. The mitigation strategy should include comprehensive network segmentation to limit exposure of affected servers to untrusted networks, along with implementing additional monitoring and intrusion detection measures. Security teams should also consider conducting thorough vulnerability assessments to identify any other potentially affected Oracle Fusion Middleware components, as similar vulnerabilities may exist within the broader Oracle product ecosystem. The remediation process should be carefully coordinated with existing system maintenance schedules to minimize operational disruption while ensuring complete protection against this specific threat vector.