CVE-2019-6110

Openssh vulnerability

CVSS

6.8

EPSS

20.9%

EPSS pct

97th

Exploited

No known

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.

Affected vendor

Openbsd

Affected product

Openssh

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

Weakness type (CWE)

CWE-838

Published

2019-01-31

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, high attack complexity, requiring no privileges, user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity.

Its EPSS score of 20.9% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2019-6110

Confirm whether Openbsd Openssh is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2019-6110.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2019-6110

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2019-6110 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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