CVE-2020-24990

HIGH

QSC Q-SYS Core Manager 8.2.1 - Unauthenticated Directory Traversal via TFTP GET Request

Title source: llm
STIX 2.1

Description

An issue was discovered in QSC Q-SYS Core Manager 8.2.1. By utilizing the TFTP service running on UDP port 69, a remote attacker can perform a directory traversal and obtain operating system files via a TFTP GET request, as demonstrated by reading /etc/passwd or /proc/version.

References (3)

Core 3
Core References
Mailing List, Third Party Advisory x_refsource_misc
http://seclists.org/fulldisclosure/2020/Oct/30

Scores

CVSS v3 7.5
EPSS 0.0364
EPSS Percentile 88.1%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Details

CWE
CWE-22
Status published
Products (1)
qsc/q-sys_core_manager 8.2.1
Published Oct 28, 2020
Tracked Since Feb 18, 2026