CVE-2021-2303 in OSS Support Tools
Summary
by MITRE • 04/23/2021
Vulnerability in the OSS Support Tools product of Oracle Support Tools (component: Diagnostic Assistant). The supported version that is affected is Prior to 2.12.41. Easily exploitable vulnerability allows high privileged attacker with network access via HTTP to compromise OSS Support Tools. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all OSS Support Tools accessible data. CVSS 3.1 Base Score 4.9 (Confidentiality impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N).
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Analysis
by VulDB Data Team • 04/27/2021
The vulnerability identified as CVE-2021-2303 resides within Oracle Support Tools' OSS Support Tools product, specifically within the Diagnostic Assistant component. This security flaw affects versions prior to 2.12.41 and represents a significant concern for organizations relying on Oracle's support infrastructure. The vulnerability's classification as easily exploitable indicates that attackers with minimal technical expertise can leverage this weakness, particularly when they possess network access through HTTP protocols. The CVSS 3.1 scoring system assigns this vulnerability a base score of 4.9, reflecting a medium severity level that prioritizes immediate attention due to its accessibility and potential impact. The attack vector analysis reveals that network-based exploitation is possible, requiring only HTTP connectivity and high privileged access, which suggests that the vulnerability may be accessible to attackers who have already established some level of system access or who can manipulate network traffic.
The technical nature of this vulnerability stems from insufficient access controls within the Diagnostic Assistant component, which allows unauthorized individuals with elevated privileges to bypass normal authentication mechanisms. This flaw creates a pathway for attackers to gain unauthorized access to sensitive data within the OSS Support Tools environment. The confidentiality impact rating of high (C:H) indicates that successful exploitation could lead to exposure of critical information, potentially including proprietary data, system configurations, or other sensitive operational details. The vulnerability does not appear to grant modification or destruction capabilities, as indicated by the CVSS vector showing no impact to integrity (I:N) or availability (A:N), but the ability to access all accessible data within the tools represents a substantial risk to organizational security. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N clearly demonstrates that the attack requires network access with high privileges and no user interaction, making it particularly concerning for environments where network exposure is inevitable.
The operational impact of this vulnerability extends beyond simple data access, as it fundamentally undermines the security posture of Oracle Support Tools implementations. Organizations that have not updated to version 2.12.41 or later face potential exposure of their most sensitive support data, which could include system diagnostics, performance metrics, and configuration information that attackers could leverage for further exploitation. The high privilege requirement suggests that this vulnerability might be particularly dangerous in environments where administrative accounts are compromised or where attackers have obtained legitimate high-privilege credentials through other means. The potential for complete access to all OSS Support Tools accessible data means that attackers could potentially gather comprehensive information about system vulnerabilities, support procedures, and organizational infrastructure, creating opportunities for advanced persistent threats or targeted attacks. This vulnerability aligns with CWE-284, which addresses improper access control mechanisms, and represents a clear violation of the principle of least privilege that should be maintained within enterprise support systems.
Mitigation strategies for CVE-2021-2303 should prioritize immediate patch deployment to version 2.12.41 or later, as this represents the most direct and effective solution to address the underlying access control flaw. Organizations should also implement network segmentation and access controls to limit exposure of the affected components to only authorized systems and users. Additional protective measures include monitoring network traffic for unusual patterns that might indicate exploitation attempts, implementing robust authentication mechanisms, and establishing continuous vulnerability assessment processes to identify similar issues within other Oracle products. The vulnerability's classification under the ATT&CK framework would likely fall within the privilege escalation and credential access domains, emphasizing the need for comprehensive security monitoring and incident response procedures. Regular security audits should be conducted to ensure that all Oracle support tools components are properly updated and that access controls remain effective against evolving threats. Organizations should also consider implementing network-based intrusion detection systems to monitor for potential exploitation attempts and establish clear protocols for responding to security incidents involving support tools infrastructure.