Improper Access Control in CODESYS V2 Web-Server by CODESYS
CVE-2021-30190

9.8CRITICAL

Key Information:

Vendor

Codesys

Status
V2 Web Server
Vendor
CVE Published:
25 May 2021

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2021-30190?

The CODESYS V2 Web-Server prior to version 1.1.9.20 is susceptible to improper access control, which can potentially lead to unauthorized access to sensitive data or functionality. This vulnerability may expose users and systems to malicious attacks, emphasizing the need for immediate updates and configuration reviews. Organizations using this product should prioritize security measures to mitigate risks associated with this flaw.

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

Follina
Created by AbdulRKB

References

https://customers.codesys.com/index.php
x_refsource_MISC
https://customers.codesys.com/index.php?eID=dumpFile&t=f&...
x_refsource_MISC

CVSS V3.1

Score:
9.8
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.