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KB-43886: Is the Centrify SSH client affected by OpenSSH vulnerability in CVE-2020-15778

Authentication Service ,  

17 November,20 at 05:53 PM

Question:
Is the SSH client bundled with Centrify-enabled OpenSSH affected by vulnerability CVE-2020-15778 and if so how is it being addressed?

Answer:
Yes. A security vulnerability exists in the OpenSSH versions currently used in the Centrify OpenSSH package. The National Institute of Standards and Technology (NIST) has given this vulnerability a base score of 7.8 (High).

Updated November 17, 2020.

Centrify initially planned to include a patched version of OpenSSH in the Centrify OpenSSH package in our upcoming maintenance release, version 2020.1 / 5.7.1, currently targeted for mid-December 2020. OpenSSH has now commented that they do not intend to fix this issue, see https://github.com/cpandya2909/CVE-2020-15778/. Red Hat has indicated that they will not fix this issue either, see:  https://access.redhat.com/articles/5284081

This will delay us from making a release that addresses this issue. We are considering our alternatives and we need more time given there is no readily available "fix" from OpenSSH. Until then, the current Centrify OpenSSH package (5.7.0) may be used with caution, or in the interim, use rsync as an alternative.

For further reference: 
https://nvd.nist.gov/vuln/detail/CVE-2020-15778
https://github.com/cpandya2909/CVE-2020-15778/
(All external links are provided as a courtesy)

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