CVE-2019-6109 Information

Description

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.

CVSS Vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

Reference

http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00058.html https://access.redhat.com/errata/RHSA-2019:3702 https://cvsweb.openbsd.org/src/usr.bin/ssh/progressmeter.c https://cvsweb.openbsd.org/src/usr.bin/ssh/scp.c https://lists.debian.org/debian-lts-announce/2019/03/msg00030.html https://lists.fedoraproject.org/archives/list/[email protected]/message/W3YVQ2BPTOVDCFDVNC2GGF5P5ISFG37G/ https://security.gentoo.org/glsa/201903-16 https://security.netapp.com/advisory/ntap-20190213-0001/ https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txt https://usn.ubuntu.com/3885-1/ https://www.debian.org/security/2019/dsa-4387 https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

NONE

Base Severity

6.8