Arbitrary File Upload Vulnerability in ATutor by Christina Caudle
CVE-2019-12170

8.8HIGH

Key Information:

Vendor

Atutor

Status
Atutor
Vendor
CVE Published:
17 May 2019

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 15%

What is CVE-2019-12170?

ATutor versions up to 2.2.4 are susceptible to an arbitrary file upload vulnerability that can be exploited through the mods/_core/backups/upload.php component. Attackers with instructor account privileges can upload a specially crafted backup ZIP file, leading to remote command execution. This vulnerability allows malicious users to write PHP files directly to the web root, enabling them to execute code on the compromised server. Immediate action is advisable to mitigate potential risks associated with this vulnerability.

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.

ATutor-Instructor-Backup-Arbitrary-File
Created by fuzzlove

References

https://github.com/fuzzlove/ATutor-Instructor-Backup-Arbi...
x_refsource_MISC
http://incidentsecurity.com/atutor-2-2-4-backup-remote-co...
x_refsource_MISC
http://packetstormsecurity.com/files/153869/ATutor-2.2.4-...
x_refsource_MISC

EPSS Score

15% 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

  • Vulnerability published

  • Vulnerability Reserved

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

.