VDB
CVE-2018-6794
CVE-2018-6794
PUBLISHED
Suricata before 4.0.4 is prone to an HTTP detection bypass vulnerability in detect.c and stream-tcp.c. If a malicious server breaks a normal TCP flow and sends data before the 3-way handshake is complete, then the data sent by the malicious server will be accepted by web clients such as a web browser or Linux CLI utilities, but ignored by Suricata IDS signatures. This mostly affects IDS signatures for the HTTP protocol and TCP stream content; signatures for TCP packets will inspect such network traffic as usual.
EPSS 37.43% · 97.3th percentile
Risk Scores
EPSS Score
37.43%
97.3th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:18.04:LTS | suricata | 0, 3.2-2ubuntu3 |
| Ubuntu:16.04:LTS | suricata | 2.0.9-1, 2.0.10-1, 0 |
Exploit Intelligence
- https://www.exploit-db.com/exploits/44247/ (nist-nvd)
- https://github.com/OISF/suricata/pull/3202/commits/e1ef57c848bbe4e567d5d4b66d346a742e3f77a1 (circl)
- [debian-lts-announce] 20181204 [SECURITY] [DLA 1603-1] suricata security update (circl)
- https://redmine.openinfosecfoundation.org/issues/2427 (circl)
- https://suricata-ids.org/2018/02/14/suricata-4-0-4-available/ (circl)
- Suricata < 4.0.4 - IDS Detection Bypass Vulnerability (0day-today)
- Suricata < 4.0.4 - IDS Detection Bypass Vulnerability (0day-today)
Timeline
- Feb 7, 2018 CVE Published
- Mar 5, 2018 PoC Published
- Apr 14, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Sep 5, 2022 EPSS Score
- Jan 8, 2023 EPSS Score
- Mar 7, 2023 EPSS Score
- Mar 11, 2023 EPSS Score
References
- https://ubuntu.com/security/CVE-2018-6794 third-party-advisory
- https://redmine.openinfosecfoundation.org/issues/2427 third-party-advisory
- https://github.com/OISF/suricata/pull/3202/commits/e1ef57c848bbe4e567d5d4b66d346a742e3f77a1 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2018-6794 third-party-advisory