github - ghsa-p4hg-mvq8-47jj

ghsa-p4hg-mvq8-47jj

Vulnerability from github

Published

2022-05-24 17:05

Modified

2024-10-22 18:32

Severity ?

9.1 (Critical) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

Details

An issue was discovered in Suricata 5.0.0. It is possible to bypass/evade any tcp based signature by overlapping a TCP segment with a fake FIN packet. The fake FIN packet is injected just before the PUSH ACK packet we want to bypass. The PUSH ACK packet (containing the data) will be ignored by Suricata because it overlaps the FIN packet (the sequence and ack number are identical in the two packets). The client will ignore the fake FIN packet because the ACK flag is not set. Both linux and windows clients are ignoring the injected packet.

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{
  "affected": [],
  "aliases": [
    "CVE-2019-18792"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-436",
      "CWE-94"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-01-06T18:15:00Z",
    "severity": "MODERATE"
  },
  "details": "An issue was discovered in Suricata 5.0.0. It is possible to bypass/evade any tcp based signature by overlapping a TCP segment with a fake FIN packet. The fake FIN packet is injected just before the PUSH ACK packet we want to bypass. The PUSH ACK packet (containing the data) will be ignored by Suricata because it overlaps the FIN packet (the sequence and ack number are identical in the two packets). The client will ignore the fake FIN packet because the ACK flag is not set. Both linux and windows clients are ignoring the injected packet.",
  "id": "GHSA-p4hg-mvq8-47jj",
  "modified": "2024-10-22T18:32:03Z",
  "published": "2022-05-24T17:05:38Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-18792"
    },
    {
      "type": "WEB",
      "url": "https://github.com/OISF/suricata/commit/1c63d3905852f746ccde7e2585600b2199cefb4b"
    },
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      "url": "https://github.com/OISF/suricata/commit/fa692df37a796c3330c81988d15ef1a219afc006"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2020/01/msg00032.html"
    },
    {
      "type": "WEB",
      "url": "https://redmine.openinfosecfoundation.org/issues/3324"
    },
    {
      "type": "WEB",
      "url": "https://redmine.openinfosecfoundation.org/issues/3394"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

cve-2019-18792

Vulnerability from cvelistv5

Published

2020-01-06 17:52

Modified

2024-08-05 02:02

Severity ?

Summary

References

▼	URL	Tags
	https://redmine.openinfosecfoundation.org/issues/3324	x_refsource_MISC
	https://github.com/OISF/suricata/commit/fa692df37a796c3330c81988d15ef1a219afc006	x_refsource_CONFIRM
	https://redmine.openinfosecfoundation.org/issues/3394	x_refsource_MISC
	https://github.com/OISF/suricata/commit/1c63d3905852f746ccde7e2585600b2199cefb4b	x_refsource_CONFIRM
	https://lists.debian.org/debian-lts-announce/2020/01/msg00032.html	mailing-list, x_refsource_MLIST

Impacted products

Vendor

Product

Version

▼

n/a

Version: n/a

Show details on NVD website

JSON

To clipboard

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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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