Path traversal in lanproxy - CVE-2021-3019
Published: January 5, 2021 / Updated: September 18, 2023
Vulnerability identifier: #VU49337
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2021-3019
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: ffay
Affected software:
lanproxy
lanproxy
Detailed vulnerability 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. A remote attacker can send a specially crafted URL request containing "dot dot" sequences (/../) to access conf/config.properties on the system.
How to mitigate CVE-2021-3019
Install updates from vendor's website.