CVE-2025-30745: Oracle MES Auth Bypass Vulnerability

CVE-2025-30745 Overview

CVE-2025-30745 is a Cross-Site Request Forgery (CSRF) vulnerability [CWE-352] in the Device Integration component of Oracle Manufacturing Execution System (MES) for Process Manufacturing. The flaw affects Oracle E-Business Suite versions 12.2.12 through 12.2.13. An unauthenticated attacker with network access via HTTP can exploit this vulnerability, but successful exploitation requires user interaction from a victim other than the attacker. Because the vulnerability crosses a security scope boundary, exploitation can affect additional products beyond Oracle MES itself. Oracle addressed the issue in the July 2025 Critical Patch Update.

Critical Impact
Successful exploitation permits unauthorized modification and limited read access to Oracle MES for Process Manufacturing data, with a scope change that can impact adjacent products.

Affected Products

Oracle MES for Process Manufacturing 12.2.12
Oracle MES for Process Manufacturing 12.2.13
Oracle E-Business Suite (Device Integration component)

Discovery Timeline

2025-07-15 - CVE-2025-30745 published to NVD alongside Oracle Critical Patch Update July 2025
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-30745

Vulnerability Analysis

The vulnerability resides in the Device Integration component of Oracle MES for Process Manufacturing, part of the broader Oracle E-Business Suite. The weakness is classified under [CWE-352], indicating the application does not adequately verify that state-changing HTTP requests originate from authenticated user sessions rather than attacker-controlled contexts. An attacker who can induce an authenticated MES user to load a malicious page or click a crafted link can cause the browser to submit forged requests to the MES application. Because requests carry the victim's session credentials automatically, the server processes them as legitimate. Oracle notes that the scope changes upon exploitation, meaning the impact reaches beyond the vulnerable component into other integrated E-Business Suite modules.

Root Cause

The root cause is missing or insufficient CSRF protections on state-changing endpoints within the Device Integration component. Requests that modify, insert, or delete data do not require an unpredictable, per-session token bound to the user's session. Standard browser behavior automatically attaches session cookies to cross-origin requests, allowing forged requests to succeed.

Attack Vector

Exploitation is network-based over HTTP and requires no attacker authentication. The attacker must convince an authenticated MES user to interact with attacker-controlled content, typically through phishing, a malicious link, or a compromised third-party site. Once the victim's browser issues the forged request, the MES application executes the operation with the victim's privileges. Refer to the Oracle Security Alert July 2025 for the vendor's technical description.

Detection Methods for CVE-2025-30745

Indicators of Compromise

Unexpected data modifications in Oracle MES for Process Manufacturing tables performed under legitimate user sessions without corresponding UI activity logs.
HTTP request logs showing state-changing requests to Device Integration endpoints with Referer or Origin headers pointing to external, untrusted domains.
User sessions triggering write operations immediately after external navigation events recorded in web proxy logs.

Detection Strategies

Correlate Oracle E-Business Suite audit logs with web proxy and browser telemetry to identify state-changing requests initiated from external origins.
Alert on Device Integration endpoint requests missing anti-CSRF tokens or containing mismatched Referer headers.
Baseline normal MES user activity patterns and flag anomalous write operations that occur outside typical workflow sequences.

Monitoring Recommendations

Enable Oracle E-Business Suite Sign-On Audit and application-level audit trails for the MES for Process Manufacturing module.
Forward web server access logs from the Oracle HTTP Server tier to a centralized SIEM for cross-source correlation.
Monitor phishing telemetry and email gateway logs for lures targeting Oracle EBS users, since exploitation requires user interaction.

How to Mitigate CVE-2025-30745

Immediate Actions Required

Apply the Oracle July 2025 Critical Patch Update to Oracle E-Business Suite instances running MES for Process Manufacturing versions 12.2.12 and 12.2.13.
Inventory all Oracle EBS environments to confirm patch coverage across production, disaster recovery, and non-production tiers.
Restrict network exposure of Oracle EBS interfaces so that only authorized internal networks and VPN clients can reach the Device Integration component.

Patch Information

Oracle released a fix as part of the July 2025 Critical Patch Update. Administrators should review and apply the patches referenced in the Oracle Security Alert July 2025 advisory. Follow Oracle's documented E-Business Suite patching procedures, including pre-patch database backups and post-patch validation of custom Device Integration extensions.

Workarounds

Enforce strict SameSite=Lax or SameSite=Strict cookie attributes on Oracle EBS session cookies where supported by the deployment.
Deploy a web application firewall rule that blocks state-changing HTTP requests to Device Integration endpoints when the Origin or Referer header does not match approved EBS hostnames.
Provide targeted user awareness training for MES operators to reduce the success rate of phishing-driven CSRF attacks that require victim interaction.

bash

# Example WAF rule concept: block cross-origin state-changing requests to EBS
# Adjust hostnames and paths to match the local deployment
SecRule REQUEST_METHOD "@rx ^(POST|PUT|DELETE)$" \
  "id:900101,phase:1,deny,status:403,\
   chain,msg:'Potential CSRF against Oracle EBS Device Integration'"
  SecRule REQUEST_URI "@beginsWith /OA_HTML/" \
    "chain"
    SecRule &REQUEST_HEADERS:Origin "@eq 1" \
      "chain"
      SecRule REQUEST_HEADERS:Origin "!@rx ^https://ebs\.example\.com$"