CVE-2020-14145

moderate-risk

Published 2020-06-29

The client side in OpenSSH 5.7 through 8.4 has an Observable Discrepancy leading to an information leak in the algorithm negotiation. This allows man-in-the-middle attackers to target initial connection attempts (where no host key for the server has been cached by the client). NOTE: some reports state that 8.5 and 8.6 are also affected.

Do I need to act?

1.6% 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

CVSS 5.9/10 Medium

NETWORK / HIGH complexity

Affected Products (12)

Openssh

Aff A700S Firmware

Active Iq Unified Manager

Hci Management Node

Ontap Select Deploy Administration Utility

Solidfire

Steelstore Cloud Integrated Storage

Hci Compute Node

Hci Storage Node

Affected Vendors

Openbsd Netapp

References (16)

Mailing List http://www.openwall.com/lists/oss-security/2020/12/02/1

Patch https://anongit.mindrot.org/openssh.git/commit/?id=b3855ff053f5078ec3d3c653cdaed...

Third Party Advisory https://docs.ssh-mitm.at/CVE-2020-14145.html

Patch https://github.com/openssh/openssh-portable/compare/V_8_3_P1...V_8_4_P1

Third Party Advisory https://github.com/ssh-mitm/ssh-mitm/blob/master/ssh_proxy_server/plugins/sessio...

Third Party Advisory https://security.gentoo.org/glsa/202105-35

Third Party Advisory https://security.netapp.com/advisory/ntap-20200709-0004/

Third Party Advisory https://www.fzi.de/en/news/news/detail-en/artikel/fsa-2020-2-ausnutzung-eines-in...

Mailing List http://www.openwall.com/lists/oss-security/2020/12/02/1

Patch https://anongit.mindrot.org/openssh.git/commit/?id=b3855ff053f5078ec3d3c653cdaed...

Third Party Advisory https://docs.ssh-mitm.at/CVE-2020-14145.html

Patch https://github.com/openssh/openssh-portable/compare/V_8_3_P1...V_8_4_P1

Third Party Advisory https://github.com/ssh-mitm/ssh-mitm/blob/master/ssh_proxy_server/plugins/sessio...

Third Party Advisory https://security.gentoo.org/glsa/202105-35

Third Party Advisory https://security.netapp.com/advisory/ntap-20200709-0004/

Third Party Advisory https://www.fzi.de/en/news/news/detail-en/artikel/fsa-2020-2-ausnutzung-eines-in...

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moderate-risk

Severity 18/34 · Moderate

Exploitability 4/34 · Minimal

Exposure 17/34 · Moderate