Remote Code Execution Vulnerability in rConfig 3.9.4 by rConfig
CVE-2020-12255

8.8HIGH

Key Information:

Vendor

Rconfig

Status
Rconfig
Vendor
CVE Published:
18 May 2020

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 58%

What is CVE-2020-12255?

The file upload functionality in rConfig 3.9.4 is susceptible to remote code execution. The vulnerability arises from a lack of thorough validation during file uploads. Specifically, the vendor.crud.php component permits file uploads while only checking the content-type, disregarding the file's actual extension and header. This oversight allows an attacker to upload a malicious .php file disguised as an image, potentially executing arbitrary PHP code on the server.

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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-2020-12255
Created by vishwaraj101

References

https://gist.github.com/farid007/9f6ad063645d5b1550298c8b...
x_refsource_MISC

EPSS Score

58% 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:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

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