CVEvulnerability
CVE-2020-14145
5.9 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2020-06-29
- Last modified
- 2026-10-14
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.9 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- CVSS 3.1 (134c704f-9b21-4f2e-91b3-4a467353bcc0)
- 5.9 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
- CVSS 2.0 ([email protected])
- 4.3 MEDIUM — AV:N/AC:M/Au:N/C:P/I:N/A:N
- Weaknesses
- CWE-203
Description
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.
Affected configurations
• openbsd openssh (>= 5.7 < 8.4)
• openbsd openssh 8.4
• openbsd openssh 8.5
• openbsd openssh 8.6
• netapp aff a700s firmware
• netapp active iq unified manager (>= 9.5)
• netapp hci management node
• netapp ontap select deploy administration utility
• netapp solidfire
• netapp steelstore cloud integrated storage
• netapp hci compute node
• netapp hci storage node
Related
Weakness · CWE (1)
- CWE-203 Observable Discrepancy weakness
References
- http://www.openwall.com/lists/oss-security/2020/12/02/1 Mailing List, Patch, Third Party Advisory
- https://anongit.mindrot.org/openssh.git/commit/?id=b3855ff053f5078ec3d3c653cdaedefaa5fc362d Patch, Third Party Advisory
- https://docs.ssh-mitm.at/CVE-2020-14145.html Third Party Advisory
- https://github.com/openssh/openssh-portable/compare/V_8_3_P1...V_8_4_P1 Patch, Third Party Advisory
- https://github.com/ssh-mitm/ssh-mitm/blob/master/ssh_proxy_server/plugins/session/cve202014145.py 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-informationslecks-fuer-gezielte-mitm-angriffe-auf-ssh-clients/ Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/12/02/1 Mailing List, Patch, Third Party Advisory
- https://anongit.mindrot.org/openssh.git/commit/?id=b3855ff053f5078ec3d3c653cdaedefaa5fc362d Patch, Third Party Advisory
- https://docs.ssh-mitm.at/CVE-2020-14145.html Third Party Advisory
- https://github.com/openssh/openssh-portable/compare/V_8_3_P1...V_8_4_P1 Patch, Third Party Advisory
- https://github.com/ssh-mitm/ssh-mitm/blob/master/ssh_proxy_server/plugins/session/cve202014145.py 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-informationslecks-fuer-gezielte-mitm-angriffe-auf-ssh-clients/ Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-398330.html cert-portal.siemens.com