7.5
CVE-2019-18625
- EPSS 1.71%
- Veröffentlicht 06.01.2020 21:15:11
- Zuletzt bearbeitet 21.11.2024 04:33:23
- Quelle cve@mitre.org
- CVE-Watchlists
- Unerledigt
An issue was discovered in Suricata 5.0.0. It was possible to bypass/evade any tcp based signature by faking a closed TCP session using an evil server. After the TCP SYN packet, it is possible to inject a RST ACK and a FIN ACK packet with a bad TCP Timestamp option. The client will ignore the RST ACK and the FIN ACK packets because of the bad TCP Timestamp option. Both linux and windows client are ignoring the injected packets.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Debian ≫ Debian Linux Version8.0
| Typ | Quelle | Score | Percentile |
|---|---|---|---|
| EPSS | FIRST.org | 1.71% | 0.746 |
| Quelle | Base Score | Exploit Score | Impact Score | Vector String |
|---|---|---|---|---|
| nvd@nist.gov | 7.5 | 3.9 | 3.6 |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
|
| nvd@nist.gov | 5 | 10 | 2.9 |
AV:N/AC:L/Au:N/C:N/I:P/A:N
|
https://lists.debian.org/debian-lts-announce/2020/01/msg00032.html
https://github.com/OISF/suricata/commit/9f0294fadca3dcc18c919424242a41e01f3e8318
https://github.com/OISF/suricata/commit/ea0659de7640cf6a51de5bbd1dbbb0414e4623a0
https://redmine.openinfosecfoundation.org/issues/3286
https://redmine.openinfosecfoundation.org/issues/3395