github - ghsa-cfcf-x7x2-gpf8

ghsa-cfcf-x7x2-gpf8

Vulnerability from github

Published

2021-12-17 00:00

Modified

2022-01-05 00:02

Details

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.

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{
   affected: [],
   aliases: [
      "CVE-2021-45098",
   ],
   database_specific: {
      cwe_ids: [],
      github_reviewed: false,
      github_reviewed_at: null,
      nvd_published_at: "2021-12-16T05:15:00Z",
      severity: "HIGH",
   },
   details: "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.",
   id: "GHSA-cfcf-x7x2-gpf8",
   modified: "2022-01-05T00:02:11Z",
   published: "2021-12-17T00:00:32Z",
   references: [
      {
         type: "ADVISORY",
         url: "https://nvd.nist.gov/vuln/detail/CVE-2021-45098",
      },
      {
         type: "WEB",
         url: "https://github.com/OISF/suricata/commit/50e2b973eeec7172991bf8f544ab06fb782b97df",
      },
      {
         type: "WEB",
         url: "https://forum.suricata.io/t/suricata-6-0-4-and-5-0-8-released/1942",
      },
      {
         type: "WEB",
         url: "https://github.com/OISF/suricata/releases",
      },
      {
         type: "WEB",
         url: "https://redmine.openinfosecfoundation.org/issues/4710",
      },
   ],
   schema_version: "1.4.0",
   severity: [],
}

CVE-2021-45098 (GCVE-0-2021-45098)

Vulnerability from cvelistv5

Published

2021-12-16 04:07

Modified

2024-08-04 04:32

Severity ?

Summary

References

▼	URL	Tags
	https://github.com/OISF/suricata/releases	x_refsource_MISC
	https://redmine.openinfosecfoundation.org/issues/4710	x_refsource_MISC
	https://forum.suricata.io/t/suricata-6-0-4-and-5-0-8-released/1942	x_refsource_MISC
	https://github.com/OISF/suricata/commit/50e2b973eeec7172991bf8f544ab06fb782b97df	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

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All sightings related to this event Export sightings related to this event

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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