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Fencer Vulns
medium 6.8

CVE-2019-6110 json

In OpenSSH 7.9, due to accepting and displaying arbitrary stderr output from the server, a malicious server (or Man-in-The-Middle attacker)…

published 2019-01-31 7 y ago modified 2026-10-14 26 d ago also EUVD-2019-15677

cvss
6.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
24.9%
EPSS 24.9% chance of exploitation in 30 days, percentile 97%
public exploits
2
Exploit-DB

Summary

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.

Patch / fix

  • Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP V3.1.5
  • Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP V3.1.5
  • Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP V3.1.5
  • openssh SLES for SAP 12 SP4, SLES for SAP 12 SP3, SLES for SAP 12 SP2 +8 more 7.2p2-74.35.1
  • openssh-askpass-gnome SLES for SAP 12 SP4, SLES for SAP 12 SP3, SLES for SAP 12 SP2 +8 more 7.2p2-74.35.1
  • openssh SLES for SAP 11 SP4, SLES 11 SP4 6.6p1-36.12.1
  • openssh-askpass-gnome SLES for SAP 11 SP4, SLES 11 SP4 6.6p1-36.12.1
  • openssh SLE Module for Server Applications 15, SLE Module for Basesystem 15 7.6p1-9.13.1
  • openssh-askpass-gnome SLE Module for Desktop Applications 15 7.6p1-9.13.1
  • openssh SLES for SAP 12 SP1, SLES 12-LTSS, SLES 12 SP1-LTSS 6.6p1-54.26.1
  • openssh-askpass-gnome SLES for SAP 12 SP1, SLES 12-LTSS, SLES 12 SP1-LTSS 6.6p1-54.26.1

suse advisories SUSE-SU-2019:0125-2SUSE-SU-2019:0132-1SUSE-SU-2019:13931-1SUSE-SU-2019:0126-1SUSE-SU-2019:0125-1

  • openssh openSUSE Tumbleweed 8.4p1-7.4
  • openssh openSUSE Leap 15.0 7.6p1-lp150.8.9.1

opensuse advisories openSUSE-SU-2024:11124-1openSUSE-SU-2019:0091-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-6110 updated cvss 6.8

openssh: Acceptance and display of arbitrary stderr allows for spoofing of scp client output

  • Red Hat Enterprise Linux 5 openssh Red Hat Enterprise Linux 6 openssh, openssh-ldap, openssh-server, openssh-askpass, openssh-clients, pam_ssh_agent_auth
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 7 openssh, openssh-cavs, openssh-ldap, openssh-keycat, openssh-server, openssh-askpass, +3 more Red Hat Enterprise Linux 8 openssh, openssh-cavs, openssh-ldap, openssh-keycat, openssh-server, openssh-askpass, +2 more
    affected: workaround, no fix planned “Will not fix”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-23-348-10 updated cvss 6.8

Siemens SIMATIC S7-1500

  • Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0) >= 3.1.0, < 3.1.5 Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0) >= 3.1.0, < 3.1.5 Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0) >= 3.1.0, < 3.1.5 Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0) >= 3.1.0, < 3.1.5 Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0) >= 3.1.0, < 3.1.5
    affected: fixed in V3.1.5, mitigation support.industry.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

cisa ICSA-22-349-21 updated cvss 6.8

Siemens SCALANCE X-200RNA Switch Devices

  • Siemens SCALANCE X204RNA (HSR) (6GK5204-0BA00-2MB2) <V3.2.7 Siemens SCALANCE X204RNA (PRP) (6GK5204-0BA00-2KB2) <V3.2.7 Siemens SCALANCE X204RNA EEC (HSR) (6GK5204-0BS00-2NA3) <V3.2.7 Siemens SCALANCE X204RNA EEC (PRP) (6GK5204-0BS00-3LA3) <V3.2.7 Siemens SCALANCE X204RNA EEC (PRP/HSR) (6GK5204-0BS00-3PA3) <V3.2.7
    affected: fixed in V3.2.7, mitigation support.industry.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Timeline

  1. First public exploit (EDB-46516)
  2. Published

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
10 mo ago

Exploit prediction

24.90% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-46516 OpenSSH SCP Client - Write Arbitrary Files remote, 2019-01-11
  • EDB-46193 SCP Client - Multiple Vulnerabilities (SSHtranger Things) remote, 2019-01-18

CVSS scores

assigned by version score vector
CISA ADP 3.1 6.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
NVD 3.1 6.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
CNA 3.1 6.8 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
NVD 2.0 4.0 AV:N/AC:H/Au:N/C:P/I:P/A:N

Affected products

  • Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP
  • Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP
  • Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP

Classification

Weakness
  • CWE-838 Inappropriate Encoding for Output Context

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.