Vulnerability-Lookup

CNVD-2021-49779

Vulnerability from cnvd - Published: 2021-07-12

Title

MikroTik RouterOS内存破坏漏洞（CNVD-2021-49779）

Description

MikroTik RouterOS是拉脱维亚MikroTik公司的一套基于Linux开发的路由器操作系统。该系统可部署在PC中，使其提供路由器功能。 MikroTik RouterOS在/nova/bin/sniffer进程中存在内存破坏漏洞。经过身份验证的远程攻击者可利用漏洞导致拒绝服务（空指针取消引用）。

Severity

中

Formal description

目前没有详细的解决方案提供： https://mikrotik.com/download/changelogs/stable-release-tree

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-20222

Impacted products

Name
MicroTik RouterOS 6.44.6

Show details on source website

JSON

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    "cve": {
      "cveNumber": "CVE-2020-20222",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-20222"
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  "description": "MikroTik RouterOS\u662f\u62c9\u8131\u7ef4\u4e9aMikroTik\u516c\u53f8\u7684\u4e00\u5957\u57fa\u4e8eLinux\u5f00\u53d1\u7684\u8def\u7531\u5668\u64cd\u4f5c\u7cfb\u7edf\u3002\u8be5\u7cfb\u7edf\u53ef\u90e8\u7f72\u5728PC\u4e2d\uff0c\u4f7f\u5176\u63d0\u4f9b\u8def\u7531\u5668\u529f\u80fd\u3002\n\nMikroTik RouterOS\u5728/nova/bin/sniffer\u8fdb\u7a0b\u4e2d\u5b58\u5728\u5185\u5b58\u7834\u574f\u6f0f\u6d1e\u3002\u7ecf\u8fc7\u8eab\u4efd\u9a8c\u8bc1\u7684\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\uff08\u7a7a\u6307\u9488\u53d6\u6d88\u5f15\u7528\uff09\u3002",
  "formalWay": "\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u89e3\u51b3\u65b9\u6848\u63d0\u4f9b\uff1a\r\nhttps://mikrotik.com/download/changelogs/stable-release-tree",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-49779",
  "openTime": "2021-07-12",
  "products": {
    "product": "MicroTik RouterOS 6.44.6"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-20222",
  "serverity": "\u4e2d",
  "submitTime": "2021-05-17",
  "title": "MikroTik RouterOS\u5185\u5b58\u7834\u574f\u6f0f\u6d1e\uff08CNVD-2021-49779\uff09"
}

CVE-2020-20222 (GCVE-0-2020-20222)

Vulnerability from cvelistv5 – Published: 2021-05-18 18:21 – Updated: 2024-08-04 14:15

Summary

Mikrotik RouterOs 6.44.6 (long-term tree) suffers from a memory corruption vulnerability in the /nova/bin/sniffer process. An authenticated remote attacker can cause a Denial of Service (NULL pointer dereference).

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://mikrotik.com/	x_refsource_MISC
	http://seclists.org/fulldisclosure/2021/May/15	mailing-listx_refsource_FULLDISC
	http://seclists.org/fulldisclosure/2021/May/15	x_refsource_MISC
	http://packetstormsecurity.com/files/162513/Mikro…	x_refsource_MISC

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 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.

Detection rules are retrieved from Rulezet.

Action not permitted

CNVD-2021-49779

CVE-2020-20222 (GCVE-0-2020-20222)

Tags

Sightings

Nomenclature