CVE-2020-14882
Critical · 9.8 CISA KEVCVSS
9.8
EPSS
100.0%
Published
Oct 21, 2020
CISA due date
May 3, 2022
Cloudanix analysis
A flaw in popular web server software lets outsiders take full control remotely without any login.
- Exploitation
- Remote Unauthenticated
- Attacker needs
- None
- Complexity
- Trivial
- Impact
- Full Compromise
- Component
- Application
- Class
- Authentication Bypass
- Remediation
- Upgrade
- Effort
- Medium
- Patch risk
- Low
What it actually does
Unauthenticated attackers with network access via HTTP can bypass authentication in the WebLogic Console component, resulting in full administrative takeover of the server instance.
Why it matters to the business
Attackers can seize control of critical middleware servers, enabling data theft, service outages, and lateral movement; known active exploitation and a past CISA deadline increase urgency for affected organizations.
How an attack unfolds
An attacker sends crafted HTTP requests targeting the console endpoint to exploit the authentication bypass, gaining admin privileges and achieving remote code execution on the server.
How to fix it
Apply Oracle security updates for WebLogic Server versions 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0 and 14.1.1.0.0; restrict console access and monitor for post-patch compliance.
How to confirm the fix worked
Confirm console endpoints enforce authentication; review Oracle patch documentation and perform vulnerability scans against affected product versions.
Typical attack path
- Identify exposed WebLogic console via network scanning
- Send unauthenticated HTTP requests to bypass login checks
- Escalate to administrative session
- Deploy malicious payloads for code execution and persistence
How to detect it
Examine HTTP access logs for unauthenticated requests to console paths; correlate with process creation events or unexpected administrative actions following such requests; review threat actor mentions of WebLogic RCE campaigns.
- /console/login/LoginForm.jsp
- HTTP requests with console bypass parameters
- Unexpected weblogic server process spawns from http traffic
What your security team should do
- Prioritize patching all affected WebLogic instances due to KEV status and high exploit probability
- Restrict network exposure of administrative consoles
- Enable logging and alerting on console access attempts
- Validate remediation across the environment before the historical due date implications
The record
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Console). Supported versions that are affected are 10.3.6.0.0, 12.1.3.0.0, 12.2.1.3.0, 12.2.1.4.0 and 14.1.1.0.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle WebLogic Server. Successful attacks of this vulnerability can result in takeover of Oracle WebLogic Server. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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