CVE-2020-24990

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 3.04% Top 15%
Vendor Advisory qsc.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://q-syshelp.qsc.com/Content/Core_Manager/CoreManager_Overview.htm vendor advisory
http://seclists.org/fulldisclosure/2020/Oct/30 third party advisory mailing list
http://packetstormsecurity.com/files/159699/QSC-Q-SYS-Core-Manager-8.2.1-Directory-Traversal.html vdb entry third party advisory

Frequently Asked Questions

What is the severity of CVE-2020-24990?
CVE-2020-24990 has been scored as a high severity vulnerability.
How to fix CVE-2020-24990?
To fix CVE-2020-24990, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-24990 being actively exploited in the wild?
It is possible that CVE-2020-24990 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~3% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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