CVE-2021-35563 in Shipping Execution
Summary
by MITRE • 10/20/2021
Vulnerability in the Oracle Shipping Execution product of Oracle E-Business Suite (component: Workflow Events). Supported versions that are affected are 12.2.6-12.2.10. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Shipping Execution. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Shipping Execution accessible data as well as unauthorized access to critical data or complete access to all Oracle Shipping Execution accessible data. CVSS 3.1 Base Score 8.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).
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Analysis
by VulDB Data Team • 10/24/2021
The vulnerability identified as CVE-2021-35563 represents a critical security flaw within Oracle Shipping Execution, a component of Oracle E-Business Suite that operates under the Workflow Events framework. This vulnerability specifically affects versions 12.2.6 through 12.2.10, making it a widespread concern for organizations utilizing these Oracle EBS releases. The flaw resides in how the system processes workflow events, creating an exploitable condition that allows attackers to manipulate the underlying data processing mechanisms. The vulnerability's classification as easily exploitable indicates that the attack vector requires minimal technical expertise or resources to execute successfully.
The technical implementation of this vulnerability stems from insufficient input validation within the workflow event processing module. An attacker with low privileges and network access via HTTP can leverage this weakness to inject malicious payloads that bypass normal access controls. The flaw essentially allows unauthorized users to manipulate the system's data handling processes, enabling them to create, delete, or modify critical shipping execution data. This occurs because the system fails to properly validate or sanitize user inputs during workflow event processing, creating a pathway for privilege escalation and data manipulation. The vulnerability's impact is particularly severe given that it affects core shipping execution functionality, which typically contains sensitive logistics and supply chain data.
The operational impact of this vulnerability extends beyond simple data compromise, as it provides attackers with comprehensive access to all data within the Oracle Shipping Execution system. This includes not only the shipping records and execution details but also potentially sensitive customer information, inventory data, and logistics coordination details. The CVSS score of 8.1 reflects the high severity of this flaw, particularly due to the high confidentiality and integrity impacts it enables. Attackers can achieve unauthorized access to critical data and potentially gain complete access to all system data, making this vulnerability particularly dangerous for organizations that rely heavily on accurate shipping and logistics information. The lack of user interaction requirement (UI:N) means that attacks can be automated and executed without requiring user engagement, increasing the attack surface and potential impact.
Organizations affected by this vulnerability should implement immediate mitigations including applying the relevant Oracle patches and updates that address the workflow event processing validation issues. Network segmentation and access controls should be strengthened to limit exposure of the affected Oracle EBS components to untrusted networks. Monitoring systems should be enhanced to detect unusual workflow event processing patterns or unauthorized data modifications. The vulnerability aligns with CWE-20, which describes improper input validation, and maps to ATT&CK technique T1078 for valid accounts and T1566 for spearphishing, as attackers may leverage this vulnerability to establish persistent access or expand their attack surface. Security teams should conduct thorough assessments of their Oracle EBS environments to identify all instances running the affected versions and ensure proper patch management protocols are in place to prevent exploitation of this critical vulnerability.