ID:5005 - Exploit for Path traversal in Flink - CVE-2020-17518

 
Main Vulnerability Database Exploits ID:5005 - Exploit for Path traversal in Flink - CVE-2020-17518

ID:5005 - Exploit for Path traversal in Flink - CVE-2020-17518

Published: January 6, 2021


Vulnerability identifier: #VU49272
Vulnerability risk: Medium
CVE-ID: CVE-2020-17518
CWE-ID: CWE-22
Exploitation vector: Remote access
Vulnerable software:
Flink

Link to public exploit:


Vulnerability description

The vulnerability allows a remote user to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences while uploading files via a REST handler. A remote user can send a specially crafted HTTP request with a modified HTTP header and upload files to an arbitrary location on the system.


Remediation

Install update from vendor's website.