Path Traversal in Qsc Q-Sys Core Manager
CVE-2020-24990
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.037 (89.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 89.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.037 · newest: 0.037 · change: 0.000
Affected products
- Qsc Q-Sys Core Manager — versions 8.2.1
Weakness classification (CWE)
References
- q-syshelp.qsc.com/Content/Core_Manager/CoreManager_Overview.htm (Vendor Advisory)
- seclists.org/fulldisclosure/2020/Oct/30 (Mailing List, Third Party Advisory)
- packetstormsecurity.com/files/159699/QSC-Q-SYS-Core-Manager-8.2.1-Directory-Tra… (VDB Entry, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-24990?
- CVE-2020-24990 is a high-severity vulnerability in Qsc Q-Sys Core Manager, classified under Path Traversal. CVSS score: 7.5/10. Published 2020-10-28.
- How severe is CVE-2020-24990?
- High severity. CVSS v3 base score is 7.5 out of 10.