Vulnerability Details : 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 category: Directory traversal
Products affected by CVE-2020-24990
- cpe:2.3:a:qsc:q-sys_core_manager:8.2.1:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-24990
3.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 86 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-24990
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:P/I:N/A:N |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2020-24990
-
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-24990
-
http://seclists.org/fulldisclosure/2020/Oct/30
Full Disclosure: CVE-2020-24990 Q-SYS <= 8.2.1 TFTP Directory TraversalMailing List;Third Party Advisory
-
https://q-syshelp.qsc.com/Content/Core_Manager/CoreManager_Overview.htm
Q-SYS Core ManagerVendor Advisory
-
http://packetstormsecurity.com/files/159699/QSC-Q-SYS-Core-Manager-8.2.1-Directory-Traversal.html
QSC Q-SYS Core Manager 8.2.1 Directory Traversal ≈ Packet StormThird Party Advisory;VDB Entry
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