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New Member

Signature 5403 - OpenSSL

I'm seeing a lot of our internal boxes supposedly attacking 207.46.134.16, one of Windows update servers, via sig 5403. The context buffer doesn't have any data. Is any one else seeing false positives with this signature?

3 REPLIES
New Member

Re: Signature 5403 - OpenSSL

Yes, we're seeing a lot of false positives, and some are directed at windowsupdate.microsoft.com. When I look at the context buffer, it says "Attacker Context:" and it's blank after that.

Bronze

Re: Signature 5403 - OpenSSL

We are aware of a false positive situation, but we need more information to diagnose the problem customers are seeing. If possible, could you capture some iplogs of the false alarms and send them to mcerha@cisco.com.

Bronze

Re: Signature 5403 - OpenSSL

A fix for this issue has been included in signature update S81, which is available on CCO now. The DDTS# is CSCee07596.

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