CVE-2018-20685
Public on 2019-01-10
Modified on 2023-05-17
Description
In OpenSSH 7.9, scp.c in the scp client allows remote SSH servers to bypass intended access restrictions via the filename of . or an empty filename. The impact is modifying the permissions of the target directory on the client side.
Severity
Medium
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 1 | openssh | 2019-10-28 | ALAS-2019-1313 | Fixed |
| Amazon Linux 2 - Core | openssh | 2019-05-29 | ALAS2-2019-1216 | Fixed |
| Amazon Linux 2023 | openssh | Not Affected |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 5.3 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N |
| NVD | CVSSv3 | 5.3 | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N |
| NVD | CVSSv2 | 2.6 | AV:N/AC:H/Au:N/C:N/I:P/A:N |