Vulnerability Details : CVE-2021-20125
Potential exploit
An arbitrary file upload and directory traversal vulnerability exists in the file upload functionality of DownloadFileServlet in Draytek VigorConnect 1.6.0-B3. An unauthenticated attacker could leverage this vulnerability to upload files to any location on the target operating system with root privileges.
Vulnerability category: Directory traversal
Products affected by CVE-2021-20125
- cpe:2.3:a:draytek:vigorconnect:1.6.0:beta3:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-20125
2.97%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 85 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-20125
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
10.0
|
HIGH | AV:N/AC:L/Au:N/C:C/I:C/A:C |
10.0
|
10.0
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2021-20125
-
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)
-
The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-20125
-
https://www.tenable.com/security/research/tra-2021-42
Multiple Vulnerabilities in Draytek VigorConnect 1.60.0-B3 - Research Advisory | Tenable®Exploit;Third Party Advisory
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