CVE-2022-21392: Oracle Enterprise Manager Auth Bypass Flaw

CVE-2022-21392 Overview

CVE-2022-21392 is a privilege escalation vulnerability in the Enterprise Manager Base Platform product of Oracle Enterprise Manager, specifically within the Policy Framework component. This vulnerability allows a low-privileged attacker with local access to compromise the Enterprise Manager Base Platform, potentially gaining unauthorized access to critical data and achieving complete access to all accessible data within the platform.

Critical Impact
Successful exploitation enables unauthorized access to critical enterprise management data and allows attackers to modify, insert, or delete data within the Enterprise Manager Base Platform, with the ability to escalate impact beyond the vulnerable component.

Affected Products

Oracle Enterprise Manager Base Platform version 13.4.0.0
Oracle Enterprise Manager Base Platform version 13.5.0.0

Discovery Timeline

January 19, 2022 - CVE-2022-21392 published to NVD
November 21, 2024 - Last updated in NVD database

Technical Details for CVE-2022-21392

Vulnerability Analysis

This vulnerability resides in the Policy Framework component of Oracle Enterprise Manager Base Platform. The flaw is characterized as easily exploitable, requiring only low-privilege local access to successfully compromise the target system. The vulnerability's scope is changed, meaning successful exploitation can affect resources beyond the vulnerable component's security scope.

The impact of this vulnerability is significant across multiple security dimensions. Attackers can gain complete read access to all Enterprise Manager Base Platform accessible data, compromising the confidentiality of critical enterprise management information. Additionally, the vulnerability permits unauthorized modification operations, allowing attackers to update, insert, or delete data within the platform.

Root Cause

The vulnerability stems from insufficient access control enforcement within the Policy Framework component. The specific weakness classification (NVD-CWE-noinfo) indicates that while the vulnerability is confirmed, the detailed weakness category has not been publicly disclosed by Oracle. This is a common practice for enterprise software vendors to prevent providing exploitation guidance.

Attack Vector

The attack requires local access to the target system with low-privilege credentials. Once positioned on the system, an attacker can exploit the Policy Framework component without requiring user interaction. The attack path involves:

Gaining local access to a system running Oracle Enterprise Manager Base Platform
Authenticating with low-privilege credentials
Exploiting the Policy Framework component to escalate privileges
Accessing or modifying critical enterprise management data

The local attack vector and changed scope indicate that while initial access requires local positioning, the impact can extend to resources managed by or connected to the Enterprise Manager platform.

Detection Methods for CVE-2022-21392

Indicators of Compromise

Unusual access patterns to Policy Framework resources by low-privileged accounts
Unexpected data modifications or queries against Enterprise Manager repositories
Anomalous privilege usage or permission changes within the Enterprise Manager environment
Suspicious local authentication events followed by elevated data access

Detection Strategies

Monitor Enterprise Manager audit logs for unauthorized data access attempts by low-privileged users
Implement file integrity monitoring on Policy Framework configuration files and related components
Enable detailed logging for the Policy Framework component and correlate with authentication events
Deploy endpoint detection solutions to identify privilege escalation attempts on Enterprise Manager servers

Monitoring Recommendations

Configure alerting for any unusual read operations on critical Enterprise Manager data repositories
Establish baseline behavior for Policy Framework component usage and alert on deviations
Monitor for unexpected local authentication events on Enterprise Manager Base Platform servers
Review access control lists periodically to ensure principle of least privilege is enforced

How to Mitigate CVE-2022-21392

Immediate Actions Required

Apply the Oracle Critical Patch Update (CPU) from January 2022 immediately
Restrict local access to Enterprise Manager servers to only essential personnel
Review and audit current user privileges within the Enterprise Manager environment
Enable comprehensive logging and monitoring on affected systems

Patch Information

Oracle has released a security patch addressing this vulnerability as part of the January 2022 Critical Patch Update. Organizations should reference the Oracle Security Alert January 2022 for detailed patching instructions and upgrade paths. The patch addresses the access control deficiencies in the Policy Framework component for both affected versions (13.4.0.0 and 13.5.0.0).

Workarounds

Implement strict network segmentation to limit local access to Enterprise Manager servers
Enforce multi-factor authentication for all accounts with access to Enterprise Manager hosts
Apply the principle of least privilege, removing unnecessary local access permissions
Consider deploying additional host-based security controls until patching can be completed

bash

# Example: Review current user access on Enterprise Manager server
# List users with local access
cat /etc/passwd | grep -v nologin | grep -v false

# Review Enterprise Manager specific permissions
ls -la $ORACLE_HOME/sysman/config/

# Enable additional audit logging
emctl config oms -set_oms_audit_level HIGH