Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openbsd | Openssh | >= 5.7, < 8.4 |
| Netapp | Aff A700S Firmware | - |
| Netapp | Aff A700S | - |
| 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 Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2020/12/02/1Mailing ListPatchThird Party Advisory
- https://anongit.mindrot.org/openssh.git/commit/?id=b3855ff053f5078ec3d3c653cdaedPatchThird Party Advisory
- https://docs.ssh-mitm.at/CVE-2020-14145.htmlThird Party Advisory
- https://github.com/openssh/openssh-portable/compare/V_8_3_P1...V_8_4_P1PatchThird Party Advisory
- https://github.com/ssh-mitm/ssh-mitm/blob/master/ssh_proxy_server/plugins/sessioThird Party Advisory
- https://security.gentoo.org/glsa/202105-35Third 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-inThird Party Advisory
- http://www.openwall.com/lists/oss-security/2020/12/02/1Mailing ListPatchThird Party Advisory
- https://anongit.mindrot.org/openssh.git/commit/?id=b3855ff053f5078ec3d3c653cdaedPatchThird Party Advisory
- https://docs.ssh-mitm.at/CVE-2020-14145.htmlThird Party Advisory
- https://github.com/openssh/openssh-portable/compare/V_8_3_P1...V_8_4_P1PatchThird Party Advisory
- https://github.com/ssh-mitm/ssh-mitm/blob/master/ssh_proxy_server/plugins/sessioThird Party Advisory
- https://security.gentoo.org/glsa/202105-35Third Party Advisory
- https://security.netapp.com/advisory/ntap-20200709-0004/Third Party Advisory
FAQ
What is CVE-2020-14145?
CVE-2020-14145 is a vulnerability with a CVSS score of 5.9 (MEDIUM). 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 connecti...
How severe is CVE-2020-14145?
CVE-2020-14145 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-14145?
Check the references section above for vendor advisories and patch information. Affected products include: Openbsd Openssh, Netapp Aff A700S Firmware, Netapp Aff A700S, Netapp Active Iq Unified Manager, Netapp Hci Management Node.