All Questions
3 questions
1
vote
1
answer
775
views
ICMP timestamp - firewall configured to drop timestamp request, but vulnerability scanner can send request and get a response
We use an external scanner (Qualys) to scan our external assets. We have a firewall in front of the external assets, but it is configured to whitelist the scanner so that the external assets get ...
- 11
2
votes
1
answer
944
views
Reliability of scanning tools on icmp timestamp responses
A security auditor has done a vulnerability scan of our network and found that one of our server has returned an TCP timestamp response such that the scanner (Nmap) is able to guess the uptime of the ...
- 1,971
1
vote
1
answer
965
views
Why is ICMP timestamping disabled on OS X?
It would seem like ICMP timestamping is quite a useful feature for troubleshooting networks with asymmetric paths.
Replies to icmp(4) timestamp requests are generated by the kernel:
On OpenBSD, the ...
- 1,984