CVE-2022-21587

CVE-2022-21587: Oracle E-Business Suite Web Applications Desktop Integrator Unauthenticated Upload Vulnerability

AI-generated analysis based on the vulnerability data on this page.

Summary

A critical vulnerability in the Oracle Web Applications Desktop Integrator component of Oracle E-Business Suite allows unauthenticated remote attackers with network access via HTTP to compromise the application, potentially leading to full system takeover.

Background

Oracle Web Applications Desktop Integrator (Web ADI) is a component of Oracle E-Business Suite that enables desktop integration with Oracle applications, allowing users to upload data from desktop applications into Oracle E-Business Suite. This functionality is commonly used in enterprise environments for bulk data import and integration tasks.

Root Cause

The vulnerability is classified as CWE-306 (Missing Authentication for Critical Function). The Upload component of Oracle Web Applications Desktop Integrator fails to enforce proper authentication controls on the upload endpoint, allowing an unauthenticated remote attacker to interact with the upload functionality and submit arbitrary files to the system.

Impact

With a CVSS 3.1 base score of 9.8 (CRITICAL), this vulnerability presents a severe risk. The CVSS vector (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) indicates:

• Attack Vector (AV): Network — exploitable remotely without access to the target system
• Attack Complexity (AC): Low — trivial conditions to exploit
• Privileges Required (PR): None — no authentication or privileges needed
• User Interaction (UI): None — no user interaction required
• Scope (S): Unchanged — the vulnerable component and impacted component are the same
• Confidentiality (C): High — total information disclosure
• Integrity (I): High — total compromise of system integrity
• Availability (A): High — total denial of service

Successful exploitation can result in complete takeover of the Oracle Web Applications Desktop Integrator application.

Exploitation Walkthrough

Ethics caveat: This section describes the vulnerability class in defensive terms. Do not use this information for unauthorized access to systems you do not own or have permission to test.

This vulnerability represents an unauthenticated arbitrary file upload weakness. An attacker with network access to the Oracle Web Applications Desktop Integrator upload endpoint can submit a crafted request containing a malicious file payload without providing any authentication credentials. Because the application fails to validate the requester's identity before processing the upload, the server accepts and processes the file. Depending on the application's configuration and server environment, the uploaded file may be stored in a web-accessible location or processed by the application, potentially leading to remote code execution and system compromise.

Defenders should:

• Monitor HTTP POST requests to upload endpoints for anomalous file types or sizes
• Implement web application firewall (WAF) rules to detect and block suspicious upload requests
• Restrict network access to the Oracle Web Applications Desktop Integrator endpoints to authorized hosts only

Affected and Patched Versions

• Affected: Oracle E-Business Suite versions 12.2.3 through 12.2.11
• Patched: Specific patch information is not provided in the available data; refer to Oracle's October 2022 Critical Patch Update (CPU) for remediation details. Oracle E-Business Suite administrators should consult Oracle Support for the latest patch availability.

Remediation

1. Apply patches: Apply the relevant patches from Oracle's October 2022 Critical Patch Update as soon as possible.
2. Upgrade: Migrate to a supported version of Oracle E-Business Suite that includes the fix for this vulnerability.
3. Compensating controls:
   • Restrict network access to Oracle Web Applications Desktop Integrator endpoints to trusted administrative hosts only
   • Implement network segmentation to isolate Oracle E-Business Suite instances from untrusted networks
   • Deploy a web application firewall (WAF) with rules to detect and block unauthenticated upload attempts
   • Enable comprehensive logging on upload endpoints and monitor for suspicious activity

Detection

• Monitor web server logs for unauthorized POST requests to Oracle Web Applications Desktop Integrator upload endpoints
• Look for anomalous file uploads or unexpected file types being processed by the application
• Use intrusion detection systems (IDS) to identify known exploit patterns targeting this vulnerability
• Correlate network traffic with CISA's Known Exploited Vulnerabilities (KEV) catalog alerts for CVE-2022-21587

Assessment

• EPSS Score: 0.98342 (99.911th percentile), indicating an extremely high probability of exploitation in the wild
• KEV Status: Listed in CISA's Known Exploited Vulnerabilities catalog since 2023-02-02, and also flagged in the EU vulnerability database (EUVD-2022-26811) as exploited since 2023-02-02

This vulnerability demonstrates two critical lessons for enterprise security teams:

1. Authentication is non-negotiable for critical functions: Upload endpoints handling sensitive data or system interactions must always require strong authentication, even for externally facing components in complex enterprise suites.
2. High EPSS + KEV correlation demands immediate action: When a vulnerability has both a near-maximum EPSS score and confirmed KEV status, organizations should treat it as actively exploited and prioritize patching above routine maintenance.

References

• http://packetstormsecurity.com/files/171208/Oracle-E-Business-Suite-EBS-Unauthenticated-Arbitrary-File-Upload.html
• https://www.oracle.com/security-alerts/cpuoct2022.html
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-21587