Full Report
Oracle security advisory – July 2024 quarterly rollup (AV24-401) - Update 1
Analysis Summary
# Vulnerability: Oracle July 2024 Critical Patch Update (CPU) - Update 1
## CVE Details
- **CVE ID:** CVE-2024-21182 (and others within the 386 total security updates)
- **CVSS Score:** 9.8 (Critical) - Highest base score identified in this rollup.
- **CWE:** CWE-20 (Improper Input Validation) / CWE-502 (Deserialization of Untrusted Data) - Common across the impacted Fusion Middleware components.
## Affected Systems
- **Products:**
- Oracle Fusion Middleware (specifically WebLogic Server)
- Oracle Analytics
- Oracle Communications / Communications Applications
- Oracle Financial Services Applications
- Oracle MySQL
- Oracle Siebel CRM
- **Versions:** Multiple versions are affected. For CVE-2024-21182, Oracle WebLogic Server versions 12.2.1.4.0 and 14.1.1.0.0 are primarily targeted.
- **Configurations:** Systems running the T3 or IIOP protocols on Oracle WebLogic Server are particularly at risk.
## Vulnerability Description
This rollup addresses a wide range of vulnerabilities, the most severe being remote code execution (RCE) flaws. **CVE-2024-21182** is a vulnerability in the Oracle WebLogic Server component (specifically the Core sub-component). It allows an unauthenticated attacker with network access via T3 or IIOP to compromise the WebLogic Server. Successful exploitation can result in the complete takeover of the affected environment.
## Exploitation
- **Status:** **Exploited in the wild.** As of June 1, 2026, CISA has added CVE-2024-21182 to the Known Exploited Vulnerabilities (KEV) Catalog.
- **Complexity:** Low
- **Attack Vector:** Network (Remote)
## Impact
- **Confidentiality:** High (Complete access to data)
- **Integrity:** High (Ability to modify any data or system files)
- **Availability:** High (Ability to crash services or lock out users)
## Remediation
### Patches
- Oracle recommends applying the **July 2024 Critical Patch Update** immediately.
- Administrators should login to My Oracle Support to download the specific Patch Set Update (PSU) or "Critical Patch Update" (CPU) for their specific product version.
### Workarounds
- **Protocol Filtering:** If patching cannot be performed immediately, restrict or disable the T3 and IIOP protocols using connection filters.
- **Network Segmentation:** Ensure that administrative consoles and vulnerable middleware ports are not exposed to the public internet.
## Detection
- **Indicators of Compromise:** Monitor logs for unusual T3/IIOP traffic from unknown external IP addresses. Look for unauthorized changes to configuration files or unexpected outbound network connections from the Middleware tier.
- **Detection methods and tools:**
- Use vulnerability scanners with updated plugins for the July 2024 Oracle CPU.
- CISA’s KEV catalog serves as a formal notification that active exploitation is occurring; prioritize these assets in vulnerability management workflows.
## References
- Oracle Critical Patch Update Advisory – July 2024: hxxps[://]www[.]oracle[.]com/security-alerts/cpujul2024[.]html
- CISA KEV Catalog: hxxps[://]www[.]cisa[.]gov/known-exploited-vulnerabilities-catalog
- Canadian Centre for Cyber Security Advisory: hxxps[://]www[.]cyber[.]gc[.]ca/en/alerts-advisories/oracle-security-advisory-july-2024-quarterly-rollup-av24-401