I am running the latest version of nessus (2.2.5) configured to run only safe checks (non-DoS); I'm using the nessus tcp() connect port scanner with Ping the remote host enabled. Scans are configured to perform local checks on Windows using a local admin account. When I scanned several Exchange servers running Windows 2003, each server reported that the Tivoli
dsmcad.exe (backup) service generated an application error and terminated unexpectedly. POP and IMAP services fail, reporting: "Unexpected error condition: call to function CEncryptCtx::CheckServerCert() resulted in error code 0x800cc801
".
All errors coincide with scans of each server. Servers are scanned monthly with the same configuration (plus any new plugins added throughout the month) and have not had a problem in prior months scans. Any advice on what to check in order to prevent this crashing of services?
Regards,
Mike Hale
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