CVE-2019-6109

high-risk
Published 2019-01-31

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.

Do I need to act?

~
9.7% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
6
CVSS 6.8/10 Medium
NETWORK / HIGH complexity

Affected Products (20)

Affected Vendors

Debian Redhat Openbsd Siemens Fujitsu Winscp Canonical Fedoraproject Netapp

References (26)

Broken Link http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00058.html
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:3702
Patch https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
Release Notes https://cvsweb.openbsd.org/src/usr.bin/ssh/progressmeter.c
Release Notes https://cvsweb.openbsd.org/src/usr.bin/ssh/scp.c
Mailing List https://lists.debian.org/debian-lts-announce/2019/03/msg00030.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...
Third Party Advisory https://security.gentoo.org/glsa/201903-16
Third Party Advisory https://security.netapp.com/advisory/ntap-20190213-0001/
Third Party Advisory https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txt
Third Party Advisory https://usn.ubuntu.com/3885-1/
Third Party Advisory https://www.debian.org/security/2019/dsa-4387
Patch https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
Broken Link http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00058.html
Third Party Advisory https://access.redhat.com/errata/RHSA-2019:3702
Patch https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
Release Notes https://cvsweb.openbsd.org/src/usr.bin/ssh/progressmeter.c
Release Notes https://cvsweb.openbsd.org/src/usr.bin/ssh/scp.c
Mailing List https://lists.debian.org/debian-lts-announce/2019/03/msg00030.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...
and 6 more references
55
/ 100
high-risk
Severity 21/34 · High
Exploitability 11/34 · Low
Exposure 23/34 · High