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.
References
Link | Resource |
---|---|
https://github.com/OISF/suricata/commit/9f0294fadca3dcc18c919424242a41e01f3e8318 | Patch Third Party Advisory |
https://github.com/OISF/suricata/commit/ea0659de7640cf6a51de5bbd1dbbb0414e4623a0 | Patch Third Party Advisory |
https://lists.debian.org/debian-lts-announce/2020/01/msg00032.html | Mailing List Third Party Advisory |
https://redmine.openinfosecfoundation.org/issues/3286 | Third Party Advisory |
https://redmine.openinfosecfoundation.org/issues/3395 | Third Party Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: mitre
Published: 2020-01-06T20:09:13
Updated: 2020-01-30T17:06:08
Reserved: 2019-10-29T00:00:00
Link: CVE-2019-18625
JSON object: View
NVD Information
Status : Analyzed
Published: 2020-01-06T21:15:11.427
Modified: 2023-02-01T19:24:01.150
Link: CVE-2019-18625
JSON object: View
Redhat Information
No data.
CWE