An issue was discovered in Suricata before 6.0.4. It is possible to bypass/evade any HTTP-based signature by faking an RST TCP packet with random TCP options of the md5header from the client side. After the three-way handshake, it's possible to inject an RST ACK with a random TCP md5header option. Then, the client can send an HTTP GET request with a forbidden URL. The server will ignore the RST ACK and send the response HTTP packet for the client's request. These packets will not trigger a Suricata reject action.
References
Link | Resource |
---|---|
https://forum.suricata.io/t/suricata-6-0-4-and-5-0-8-released/1942 | Release Notes Vendor Advisory |
https://github.com/OISF/suricata/commit/50e2b973eeec7172991bf8f544ab06fb782b97df | Patch Third Party Advisory |
https://github.com/OISF/suricata/releases | Release Notes Third Party Advisory |
https://redmine.openinfosecfoundation.org/issues/4710 | Exploit Issue Tracking Patch Vendor Advisory |
Configurations
History
04 Jan 2022, 16:48
Type | Values Removed | Values Added |
---|---|---|
CWE | NVD-CWE-noinfo | |
CVSS |
v2 : v3 : |
v2 : 5.0
v3 : 7.5 |
CPE | cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:* |
|
References | (MISC) https://github.com/OISF/suricata/releases - Release Notes, Third Party Advisory | |
References | (MISC) https://forum.suricata.io/t/suricata-6-0-4-and-5-0-8-released/1942 - Release Notes, Vendor Advisory | |
References | (MISC) https://github.com/OISF/suricata/commit/50e2b973eeec7172991bf8f544ab06fb782b97df - Patch, Third Party Advisory | |
References | (MISC) https://redmine.openinfosecfoundation.org/issues/4710 - Exploit, Issue Tracking, Patch, Vendor Advisory |
16 Dec 2021, 05:15
Type | Values Removed | Values Added |
---|---|---|
New CVE |
Information
Published : 2021-12-16 05:15
Updated : 2024-02-04 22:08
NVD link : CVE-2021-45098
Mitre link : CVE-2021-45098
CVE.ORG link : CVE-2021-45098
JSON object : View
Products Affected
oisf
- suricata
debian
- debian_linux
CWE