CVE-2019-6109
MEDIUM severity · CVSS 6.8 · CWE-116
6.8CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorNetwork
Attack complexityHigh
Privileges requiredNone
User interactionRequired
Confidentiality impactHigh
Integrity impactHigh
Availability impactNone
Exploit probability (EPSS)4%
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf ↗
Additional information
- NVD record
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdfPatch
- https://cvsweb.openbsd.org/src/usr.bin/ssh/progressmeter.cAdvisory
- https://cvsweb.openbsd.org/src/usr.bin/ssh/scp.cAdvisory
- http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00058.html
- https://access.redhat.com/errata/RHSA-2019:3702Advisory
- https://lists.debian.org/debian-lts-announce/2019/03/msg00030.htmlAdvisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W3YVQ2BPTOVDCFDVNC2GGF5P5ISFG37G/
- https://security.gentoo.org/glsa/201903-16Advisory