Are the Centrify products affected by CVE-2020-1350 which is for a Windows DNS Server Remote Code Execution Vulnerability?
External link to CVE documentation:https://cve.mitre.org/cgi-bin/cvename.cgi?name=ALAS-2020-1350https://support.microsoft.com/en-us/help/4569509/windows-dns-server-remote-code-execution-vulnerabilityAnswer:
This CVE names the Windows DNS server as attack surface. Centrify is a DNS client so we are NOT exposed to this issue.
We do strongly recommend that our customer's follow Microsoft's suggestion to fix this issue.
One note on the following information from the recommended fix from Microsoft:
"After the workaround is implemented, a Windows DNS server will be unable to resolve DNS names for its clients if the DNS response from the upstream server is larger than 65,280 bytes."
A DNS response that large is unheard of (even for a SRV query), but not impossible if it was crafted by malicious upstream DNS server.
As far as we are aware, there is no known legitimate response that big.