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Vuln ID | Summary | CVSS Severity |
---|---|---|
CVE-2019-6111 |
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). Published: January 31, 2019; 1:29:00 PM -0500 |
V4.0:(not available) V3.1: 5.9 MEDIUM V2.0: 5.8 MEDIUM |
CVE-2019-6110 |
In OpenSSH 7.9, due to accepting and displaying arbitrary stderr output from the server, a malicious server (or Man-in-The-Middle attacker) can manipulate the client output, for example to use ANSI control codes to hide additional files being transferred. Published: January 31, 2019; 1:29:00 PM -0500 |
V4.0:(not available) V3.1: 6.8 MEDIUM V2.0: 4.0 MEDIUM |
CVE-2019-6109 |
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. Published: January 31, 2019; 1:29:00 PM -0500 |
V4.0:(not available) V3.1: 6.8 MEDIUM V2.0: 4.0 MEDIUM |
CVE-2018-20685 |
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. Published: January 10, 2019; 4:29:00 PM -0500 |
V4.0:(not available) V3.1: 5.3 MEDIUM V2.0: 2.6 LOW |