CVE-2024-21071: Oracle Workflow Privilege Escalation Flaw

CVE-2024-21071 Overview

CVE-2024-21071 is a critical vulnerability in the Oracle Workflow product of Oracle E-Business Suite, specifically affecting the Admin Screens and Grants UI component. This easily exploitable vulnerability allows a high privileged attacker with network access via HTTP to compromise Oracle Workflow. Notably, while the vulnerability exists within Oracle Workflow, successful exploitation can significantly impact additional products due to scope change, potentially resulting in a complete takeover of the Oracle Workflow component with full impacts to confidentiality, integrity, and availability.

Critical Impact

Successful exploitation allows attackers to achieve complete takeover of Oracle Workflow, with the ability to pivot and significantly impact additional products beyond the vulnerable component.

Affected Products

• Oracle Workflow versions 12.2.3 through 12.2.13
• Oracle E-Business Suite (Oracle Workflow component)
• Admin Screens and Grants UI component

Discovery Timeline

• April 16, 2024 - CVE-2024-21071 published to NVD
• March 26, 2025 - Last updated in NVD database

Technical Details for CVE-2024-21071

Vulnerability Analysis

This vulnerability is classified as an improper access control issue (CWE-284) within the Oracle Workflow Admin Screens and Grants UI component. The flaw enables attackers with high privileges and network access via HTTP to compromise the Oracle Workflow system. The vulnerability's scope change characteristic is particularly concerning, as it indicates that successful exploitation can cascade beyond the vulnerable component to affect other products within the Oracle E-Business Suite ecosystem.

The attack complexity is low, meaning exploitation does not require specialized conditions or circumstances. While the attacker needs high privileges to initiate the attack, no user interaction is required for successful exploitation. Once compromised, the attacker gains complete control over the Oracle Workflow component with full impacts to data confidentiality, system integrity, and service availability.

Root Cause

The vulnerability stems from improper access control mechanisms within the Admin Screens and Grants UI component of Oracle Workflow. This improper access control (CWE-284) allows authenticated attackers with elevated privileges to bypass intended security restrictions and gain unauthorized access to sensitive functionality. The specific implementation weakness in access validation enables the attacker to exceed their authorized permissions within the workflow system.

Attack Vector

The attack is conducted over the network via HTTP, targeting the Oracle Workflow Admin Screens and Grants UI component. An attacker with high-level privileges on the target system can exploit this vulnerability remotely without requiring any user interaction. The attack leverages the improper access control weakness to achieve unauthorized access that extends beyond the normal boundaries of the vulnerable component.

The exploitation flow involves:

1. The attacker authenticates to the Oracle E-Business Suite with high-level credentials
2. The attacker accesses the Oracle Workflow Admin Screens and Grants UI component via HTTP
3. Through improper access control bypass, the attacker gains unauthorized capabilities
4. Successful exploitation results in complete compromise of Oracle Workflow
5. Due to scope change, the attacker can potentially pivot to impact additional products

Detection Methods for CVE-2024-21071

Indicators of Compromise

• Unusual administrative activity within Oracle Workflow Admin Screens and Grants UI
• Unexpected privilege escalation events or unauthorized configuration changes
• Anomalous HTTP traffic patterns targeting Oracle Workflow endpoints
• Audit log entries showing privileged users accessing resources beyond their normal scope

Detection Strategies

• Monitor Oracle E-Business Suite audit logs for suspicious administrative actions within Oracle Workflow
• Implement network traffic analysis to detect unusual HTTP requests to Workflow Admin Screens
• Configure alerting on privilege escalation events or unauthorized workflow modifications
• Deploy database activity monitoring to track changes to workflow configurations and grants

Monitoring Recommendations

• Enable detailed audit logging for all Oracle Workflow administrative functions
• Implement real-time monitoring of high-privileged user sessions accessing the Admin Screens and Grants UI
• Configure baseline behavioral analysis for normal administrative activity patterns
• Monitor for lateral movement attempts that could indicate scope change exploitation

How to Mitigate CVE-2024-21071

Immediate Actions Required

• Apply the Oracle Critical Patch Update from April 2024 immediately
• Review and restrict high-privileged access to Oracle Workflow Admin Screens and Grants UI
• Implement network segmentation to limit HTTP access to Oracle Workflow components
• Audit existing privileged accounts for necessity and remove unnecessary elevated permissions

Patch Information

Oracle has addressed this vulnerability in the April 2024 Critical Patch Update. Organizations running Oracle Workflow versions 12.2.3 through 12.2.13 should apply the security patches available through the Oracle Critical Patch Update Advisory. The patch corrects the improper access control issue in the Admin Screens and Grants UI component.

Workarounds

• Restrict network access to Oracle Workflow Admin Screens and Grants UI to trusted IP ranges only
• Implement additional authentication requirements for accessing administrative functions
• Deploy web application firewall (WAF) rules to filter suspicious HTTP traffic to Workflow endpoints
• Conduct regular access reviews to minimize the number of high-privileged accounts

# Example: Restrict network access to Oracle Workflow Admin Screens
# Configure firewall rules to limit HTTP access to trusted administrative networks
iptables -A INPUT -p tcp --dport 80 -s <trusted_admin_network> -j ACCEPT
iptables -A INPUT -p tcp --dport 443 -s <trusted_admin_network> -j ACCEPT
iptables -A INPUT -p tcp --dport 80 -j DROP
iptables -A INPUT -p tcp --dport 443 -j DROP