Vulnerability-Lookup

CNVD-2020-03839

Vulnerability from cnvd - Published: 2020-02-05

Title

Suricata存在未明漏洞（CNVD-2020-03839）

Description

Suricata是开放信息安全基金会（Open Information Security Foundation，OISF）和其支持的厂商共同开发的一套网络入侵检测系统（IDS）、入侵防御系统（IPS）和网络安全监控引擎，它支持多线程、内置IPv6、可加载预设规则等。 Suricata 5.0.0版本中存在安全漏洞。攻击者可利用该漏洞绕过基于tcp的签名。

Severity

中

Patch Name

Suricata存在未明漏洞（CNVD-2020-03839）的补丁

Patch Description

Formal description

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://github.com/OISF/suricata/commit/1c63d3905852f746ccde7e2585600b2199cefb4b

Reference

https://nvd.nist.gov/vuln/detail/CVE-2019-18792

Impacted products

Name
Open Information Security Foundation (OISF) Suricata 5.0.0

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-18792"
    }
  },
  "description": "Suricata\u662f\u5f00\u653e\u4fe1\u606f\u5b89\u5168\u57fa\u91d1\u4f1a\uff08Open Information Security Foundation\uff0cOISF\uff09\u548c\u5176\u652f\u6301\u7684\u5382\u5546\u5171\u540c\u5f00\u53d1\u7684\u4e00\u5957\u7f51\u7edc\u5165\u4fb5\u68c0\u6d4b\u7cfb\u7edf\uff08IDS\uff09\u3001\u5165\u4fb5\u9632\u5fa1\u7cfb\u7edf\uff08IPS\uff09\u548c\u7f51\u7edc\u5b89\u5168\u76d1\u63a7\u5f15\u64ce\uff0c\u5b83\u652f\u6301\u591a\u7ebf\u7a0b\u3001\u5185\u7f6eIPv6\u3001\u53ef\u52a0\u8f7d\u9884\u8bbe\u89c4\u5219\u7b49\u3002\n\nSuricata 5.0.0\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u57fa\u4e8etcp\u7684\u7b7e\u540d\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://github.com/OISF/suricata/commit/1c63d3905852f746ccde7e2585600b2199cefb4b",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-03839",
  "openTime": "2020-02-05",
  "patchDescription": "Suricata\u662f\u5f00\u653e\u4fe1\u606f\u5b89\u5168\u57fa\u91d1\u4f1a\uff08Open Information Security Foundation\uff0cOISF\uff09\u548c\u5176\u652f\u6301\u7684\u5382\u5546\u5171\u540c\u5f00\u53d1\u7684\u4e00\u5957\u7f51\u7edc\u5165\u4fb5\u68c0\u6d4b\u7cfb\u7edf\uff08IDS\uff09\u3001\u5165\u4fb5\u9632\u5fa1\u7cfb\u7edf\uff08IPS\uff09\u548c\u7f51\u7edc\u5b89\u5168\u76d1\u63a7\u5f15\u64ce\uff0c\u5b83\u652f\u6301\u591a\u7ebf\u7a0b\u3001\u5185\u7f6eIPv6\u3001\u53ef\u52a0\u8f7d\u9884\u8bbe\u89c4\u5219\u7b49\u3002\r\n\r\nSuricata 5.0.0\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u57fa\u4e8etcp\u7684\u7b7e\u540d\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Suricata\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\uff08CNVD-2020-03839\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Open Information Security Foundation (OISF)  Suricata 5.0.0"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2019-18792",
  "serverity": "\u4e2d",
  "submitTime": "2020-01-08",
  "title": "Suricata\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\uff08CNVD-2020-03839\uff09"
}

CVE-2019-18792 (GCVE-0-2019-18792)

Vulnerability from cvelistv5 – Published: 2020-01-06 17:52 – Updated: 2024-08-05 02:02

Summary

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.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

5 references

URL	Tags
https://redmine.openinfosecfoundation.org/issues/3324	x_refsource_MISC
https://github.com/OISF/suricata/commit/fa692df37…	x_refsource_CONFIRM
https://redmine.openinfosecfoundation.org/issues/3394	x_refsource_MISC
https://github.com/OISF/suricata/commit/1c63d3905…	x_refsource_CONFIRM
https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST

Date Public

2019-11-21 00:00

Show details on NVD website

JSON

To clipboard

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            "url": "https://github.com/OISF/suricata/commit/1c63d3905852f746ccde7e2585600b2199cefb4b"
          },
          {
            "name": "[debian-lts-announce] 20200130 [SECURITY] [DLA 2087-1] suricata security update",
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          }
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      "descriptions": [
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          "lang": "en",
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          "url": "https://redmine.openinfosecfoundation.org/issues/3394"
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Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CNVD-2020-03839

CVE-2019-18792 (GCVE-0-2019-18792)

Tags

Sightings

Nomenclature

Related by attack behaviour