CVE-2019-18625
suricata - security update
7.5
HIGH
CVSS 3.1
EPSS 0.25%
描述
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.
如何修補 CVE-2019-18625
要修補 CVE-2019-18625,請將受影響套件升級到下列已修補版本。
- —升級至 1:5.0.2-1 或更新版本
- —升級至 2.0.7-2+deb8u5 或更新版本
CVE-2019-18625 正在被利用嗎?
低 — EPSS 為 0.3%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0, < 1:5.0.2-1
- from 0, < 2.0.7-2+deb8u5
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |