A local file inclusion vulnerability exists in Draytek VigorConnect 1.6.0-B3 in the file download functionality of the DownloadFileServlet endpoint. An unauthenticated attacker could leverage this vulnerability to download arbitrary files from the underlying operating system with root privileges.
Published 2021-10-13 16:15:07
Updated 2022-07-12 17:42:04
View at NVD,   CVE.org
Vulnerability category: Directory traversalFile inclusion

Exploit prediction scoring system (EPSS) score for CVE-2021-20123

Probability of exploitation activity in the next 30 days: 3.35%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 90 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2021-20123

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Source
7.8
HIGH AV:N/AC:L/Au:N/C:C/I:N/A:N
10.0
6.9
nvd@nist.gov
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
nvd@nist.gov

CWE ids for CVE-2021-20123

  • 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-2021-20123

Products affected by CVE-2021-20123

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