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About MCervenka
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- About MCervenka
09-13-2023
4Posts
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Sep 13, 2023Last Visited
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Latest posts by MCervenka
| Subject | Views | Posted |
|---|---|---|
| 3862 | 02-15-2021 01:02 PM | |
| 4130 | 02-15-2021 12:40 PM | |
| 4165 | 02-15-2021 07:05 AM | |
| 4268 | 02-14-2021 03:17 PM |
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| Member Since | 07-30-2019 10:23 AM |
| Date Last Visited | 09-13-2023 12:02 AM |
| Posts | 4 |
02-15-2021
01:02 PM
Same results, unfortunately.
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02-15-2021
12:40 PM
Thank you Claudec. I will try. But as I read before, this will gives us an opportunity to search in the headers? Anyway, I will try it and post the results. M.
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02-15-2021
07:05 AM
Hello, I did some other tests... Yes, this we can read in some manual, but on the other hand, we can also read, that this is dependent on the parent application. These packet payloads signatures of course are not. Anyway, I tried at the end everything to turn on and it did not help. And even the property I am matching is unknown-req-udp-payload. Maybe this unknown is important 😞 So I ended with this question. Yes, you are right again. But after 20 or so packets, this signature does not work anymore. My signature will drop the session if a vulnerability is found in the first 20 packets only. I would like to inspect every packet in the UDP stream.
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02-14-2021
03:17 PM
Hello. I'm trying to write a custom app and vulnerability signature. Signatures are based on UDP-payload. When I use the custom app signature, vulnerability detection does not work. Can I somehow turn on CTD for the custom app? The other problem is that what I ideally need to do in the vulnerability is to check for the other than mine UDP-payload. So I was thinking about matching "\xaabbccddee\x" with negating turned on and "\xaabbccdd\x" in the payload in one vulnerability signature. But this does not work either. Any suggestions? Thank you.
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