CVE-2020-24990
HIGHQSC Q-SYS Core Manager 8.2.1 - Unauthenticated Directory Traversal via TFTP GET Request
Title source: llmDescription
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
Vendor Advisory x_refsource_misc
https://q-syshelp.qsc.com/Content/Core_Manager/CoreManager_Overview.htm
Mailing List, Third Party Advisory x_refsource_misc
http://seclists.org/fulldisclosure/2020/Oct/30
Third Party Advisory, VDB Entry x_refsource_misc
http://packetstormsecurity.com/files/159699/QSC-Q-SYS-Core-Manager-8.2.1-Directory-Traversal.html
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