CVE-2021-2136

Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core)

Critical · published April 22, 2021

CVSS v3.1
9.8
EPSS
2%
Percentile
82.7
In the wild
Unconfirmed
What it is

🚨 An unauthenticated attacker can compromise Oracle WebLogic Server with just a network connection—it's like leaving your front door wide open for anyone to stroll in! 🔥 Think of Oracle WebLogic Server as an upscale hotel. If the front desk (the server) trusts anyone who walks through the door without checking for a room key (authentication), it’s only a matter of time before an unwelcome guest takes over the penthouse suite! If exploited, this vulnerability allows attackers to take over the entire WebLogic Server, potentially compromising sensitive data and disrupting services. Imagine a rogue guest throwing a wild party in your hotel, causing chaos for everyone inside!

Put simply

Think of Oracle WebLogic Server as an upscale hotel. If the front desk (the server) trusts anyone who walks through the door without checking for a room key (authentication), it’s only a matter of time before an unwelcome guest takes over the penthouse suite! This vulnerability in Oracle WebLogic Server allows unauthenticated network access via IIOP, meaning attackers can send malicious requests without needing credentials, resulting in a total server takeover.

What to do

If exploited, this vulnerability allows attackers to take over the entire WebLogic Server, potentially compromising sensitive data and disrupting services. Imagine a rogue guest throwing a wild party in your hotel, causing chaos for everyone inside! Patch to version 12.1.3.0.0, 12.2.1.4.0, or 14.1.1.0.0 immediately to close this vulnerability. It’s also wise to review your firewall settings to limit network access only to trusted sources. Don't forget to conduct a security audit of your WebLogic Server configurations! You've got this! With these steps, you'll have your defenses reinforced in no time! 🛡️

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.02240 · 82.7th percentile
Published
2021-04-22T21:53Z
EPSS history
Timeline
  • 22 APR 21:53Z
    Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core)
    cvelistv5