Vulnerability CVE-2019-6109


Published: 2019-01-31

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.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
SCP Server Verification Issues
Harry Sintonen
16.01.2019

Type:

CWE-284

(Improper Access Control)

CVSS2 => (AV:N/AC:H/Au:N/C:P/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4/10
4.9/10
4.9/10
Exploit range
Attack complexity
Authentication
Remote
High
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
None
Affected software
Winscp -> Winscp 
Openbsd -> Openssh 
Netapp -> Element software 
Netapp -> Ontap select deploy 
Netapp -> Storage automation store 
Debian -> Debian linux 
Canonical -> Ubuntu linux 

 References:
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/package-announce@lists.fedoraproject.org/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

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