Cross Site Request Forgery in Webmin Affects User Privileges
CVE-2021-31762

8.8HIGH

Key Information:

Vendor

Webmin

Status
Webmin
Vendor
CVE Published:
25 April 2021

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 22%

What is CVE-2021-31762?

Webmin version 1.973 is susceptible to a Cross Site Request Forgery (CSRF) vulnerability, which can be exploited by an attacker to create a privileged user using the 'add users' feature. This maliciously crafted request can manipulate legitimate users into performing unintended actions, ultimately allowing the attacker to gain a reverse shell by executing commands through Webmin's process functionality.

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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.

CVE-2021-31762
Created by electronicbots

CVE-2021-31762
Created by Mesh3l911

References

https://github.com/webmin/webmin
x_refsource_MISC
https://youtu.be/qCvEXwyaF5U
x_refsource_MISC
https://github.com/Mesh3l911/CVE-2021-31762
x_refsource_MISC

EPSS Score

22% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

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