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Sohel
Level 10
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NIPS Violation Blocked a Network exploit attempt

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Our Nessus scanner is getting blocked (see below) by Exploit prevention even after creating an exclusion rule for the ip-address. any thoughts how I resolved the issue?

 

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Analyzer Detection Method:Exploit Prevention
Threat Name: ExP:NIPS Violation
Analyzer Rule Name:SMB Brute Force Attack
Description:ExP:NIPS Violation Blocked a Network exploit attempt.
Attack Vector Type:Network
Threat Source IP address: xx.xxx.xxx.xx

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robg3381
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Re: NIPS Violation Blocked a Network exploit attempt

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I have an open case into engineering on something that may help.  The case I had dealt with having multiple entries under the exclusions sections of the Threat Prevent Exploit Prevent Policy.  In my case, I wanted a separate entry for each type of exclusion (1 for my internal Vuln scanners, 1 for external vuln scanner, etc).  After several back & forth, support suggested 2 options: 1) put all entries into a single entry with the signature (3700 I believe), or 2) Put first entry in with 3700 in signature, then any subsequent entries with no signature in the entry.  Also CIDR didn't seem to work for me, I had to enter them as single IPs and/or IP ranges.  Hope this helps.

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robg3381
Level 9
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Message 2 of 3

Re: NIPS Violation Blocked a Network exploit attempt

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I have an open case into engineering on something that may help.  The case I had dealt with having multiple entries under the exclusions sections of the Threat Prevent Exploit Prevent Policy.  In my case, I wanted a separate entry for each type of exclusion (1 for my internal Vuln scanners, 1 for external vuln scanner, etc).  After several back & forth, support suggested 2 options: 1) put all entries into a single entry with the signature (3700 I believe), or 2) Put first entry in with 3700 in signature, then any subsequent entries with no signature in the entry.  Also CIDR didn't seem to work for me, I had to enter them as single IPs and/or IP ranges.  Hope this helps.
Sohel
Level 10
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Re: NIPS Violation Blocked a Network exploit attempt

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Thanks for the updates. I ended up putting all entries under one rule and it seems to work. Previously I had them in 2 separate rules.

agree....it doesn't work when you create multiple rules for the same signature.

 

Thanks

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