Path traversal in openSIS - CVE-2020-6142

 

Path traversal in openSIS - CVE-2020-6142

Published: September 2, 2020


Vulnerability identifier: #VU46207
CSH Severity: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2020-6142
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
openSIS
Software vendor:
Open Solutions for Education

Description

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

The vulnerability exists due to input validation error when processing directory traversal sequences in the "Modules.php" functionality. A remote authenticated attacker can send a specially crafted HTTP request and read arbitrary files on the system, leading to remote code execution.


Remediation

Install update from vendor's website.

External links