Detections
Analytics
Alpine: multiple openssh packages: security update to 7.7_p1-r4
medium Tenable Cloud Security Plugin ID 424311
Description
There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:- OpenSSH through 7.7 is prone to a user enumeration vulnerability due to not delaying bailout for an
invalid authenticating user until after the packet containing the request has been fully parsed, related
to auth2-gss.c, auth2-hostbased.c, and auth2-pubkey.c. (CVE-2018-15473)
- 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. (CVE-2018-20685)
- An issue was discovered in OpenSSH 7.9. Due to missing character encoding in the progress display, a
malicious server (or Man-in-The-Middle attacker) can employ crafted object names to manipulate the client
output, e.g., by using ANSI control codes to hide additional files being transferred. This affects
refresh_progress_meter() in progressmeter.c. (CVE-2019-6109)
- An issue was discovered in OpenSSH 7.9. Due to the scp implementation being derived from 1983 rcp, the
server chooses which files/directories are sent to the client. However, the scp client only performs
cursory validation of the object name returned (only directory traversal attacks are prevented). A
malicious scp server (or Man-in-The-Middle attacker) can overwrite arbitrary files in the scp client
target directory. If recursive operation (-r) is performed, the server can manipulate subdirectories as
well (for example, to overwrite the .ssh/authorized_keys file). (CVE-2019-6111)
See Also
https://security.alpinelinux.org/vuln/CVE-2018-15473
https://security.alpinelinux.org/vuln/CVE-2018-20685
Plugin Details
Severity: Medium
ID: 424311
Version: Revision 1.17
Type: Local
Published: 4/4/2025
Updated: 7/2/2026
Supported Sensors: Agentless Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security
Risk Information
VPR
Risk Factor: Medium
Score: 5.7
Percentile: 96.49
CVSS v2
Risk Factor: Medium
Base Score: 5.8
Temporal Score: 5
Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:P
CVSS Score Source: CVE-2019-6111
CVSS v3
Risk Factor: Medium
Base Score: 6.8
Temporal Score: 6.5
Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Temporal Vector: CVSS:3.0/E:H/RL:O/RC:C
CVSS Score Source: CVE-2019-6109
Vulnerability Information
Exploit Available: true
Exploit Ease: Exploits are available
Vulnerability Publication Date: 1/25/2018
Exploitable With
CANVAS (CANVAS)
Reference Information
CVE: CVE-2018-15473, CVE-2018-20685, CVE-2019-6109, CVE-2019-6111