cnvd - cnvd-2017-34211

CNVD-2017-34211

Vulnerability from cnvd - Published: 2017-11-16

Title

Cisco Small Business Managed Switches拒绝服务漏洞

Description

Cisco Small Business 300 Series Managed Switches等都是美国思科（Cisco）公司的交换机设备。Secure Shell(SSH)subsystem是其中的一个数据加密传输子系统。多款Cisco产品中的SSH子系统存在拒绝服务漏洞，该漏洞源于程序未能正确的处理SSH连接。远程攻击者可通过登录受影响的交换机并发送恶意的SSH消息利用该漏洞造成拒绝服务（重新加载）。

Severity

中

Patch Name

Cisco Small Business Managed Switches拒绝服务漏洞的补丁

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://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170920-sbms

Reference

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170920-sbms http://www.securityfocus.com/bid/100933

Impacted products

Name
['Cisco 350 Series Managed Switches 0', 'Cisco 350X Series Stackable Managed Switches 0', 'Cisco 550X Series Stackable Managed Switches 0', 'Cisco ESW2 Series Advanced Switches 0', 'Cisco Small Business 300 Series Managed Switch 0', 'Cisco Small Business 500 Series Stackable Managed Switch 0']

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JSON

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{
  "bids": {
    "bid": {
      "bidNumber": "100933"
    }
  },
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-6720"
    }
  },
  "description": "Cisco Small Business 300 Series Managed Switches\u7b49\u90fd\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4ea4\u6362\u673a\u8bbe\u5907\u3002Secure Shell(SSH)subsystem\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u6570\u636e\u52a0\u5bc6\u4f20\u8f93\u5b50\u7cfb\u7edf\u3002\r\n\r\n\u591a\u6b3eCisco\u4ea7\u54c1\u4e2d\u7684SSH\u5b50\u7cfb\u7edf\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u7684\u5904\u7406SSH\u8fde\u63a5\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u767b\u5f55\u53d7\u5f71\u54cd\u7684\u4ea4\u6362\u673a\u5e76\u53d1\u9001\u6076\u610f\u7684SSH\u6d88\u606f\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u91cd\u65b0\u52a0\u8f7d\uff09\u3002",
  "discovererName": "Alessandro Celestra of TLogos",
  "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://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170920-sbms",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-34211",
  "openTime": "2017-11-16",
  "patchDescription": "Cisco Small Business 300 Series Managed Switches\u7b49\u90fd\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4ea4\u6362\u673a\u8bbe\u5907\u3002Secure Shell(SSH)subsystem\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u6570\u636e\u52a0\u5bc6\u4f20\u8f93\u5b50\u7cfb\u7edf\u3002\r\n\r\n\u591a\u6b3eCisco\u4ea7\u54c1\u4e2d\u7684SSH\u5b50\u7cfb\u7edf\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u7684\u5904\u7406SSH\u8fde\u63a5\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u767b\u5f55\u53d7\u5f71\u54cd\u7684\u4ea4\u6362\u673a\u5e76\u53d1\u9001\u6076\u610f\u7684SSH\u6d88\u606f\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u91cd\u65b0\u52a0\u8f7d\uff09\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": "Cisco Small Business Managed Switches\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Cisco 350 Series Managed Switches 0",
      "Cisco 350X Series Stackable Managed Switches 0",
      "Cisco 550X Series Stackable Managed Switches 0",
      "Cisco ESW2 Series Advanced Switches 0",
      "Cisco Small Business 300 Series Managed Switch 0",
      "Cisco Small Business 500 Series Stackable Managed Switch 0"
    ]
  },
  "referenceLink": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170920-sbms\r\nhttp://www.securityfocus.com/bid/100933",
  "serverity": "\u4e2d",
  "submitTime": "2017-09-21",
  "title": "Cisco Small Business Managed Switches\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2017-6720 (GCVE-0-2017-6720)

Vulnerability from cvelistv5 – Published: 2017-09-21 05:00 – Updated: 2024-08-05 15:41

Summary

A vulnerability in the Secure Shell (SSH) subsystem of Cisco Small Business Managed Switches software could allow an authenticated, remote attacker to cause a reload of the affected switch, resulting in a denial of service (DoS) condition. The vulnerability is due to improper processing of SSH connections. An attacker could exploit this vulnerability by logging in to an affected switch via SSH and sending a malicious SSH message. This vulnerability affects the following Cisco products when SSH is enabled: Small Business 300 Series Managed Switches, Small Business 500 Series Stackable Managed Switches, 350 Series Managed Switches, 350X Series Stackable Managed Switches, 550X Series Stackable Managed Switches, ESW2 Series Advanced Switches. Cisco Bug IDs: CSCvb48377.

Severity ?

No CVSS data available.

CWE

CWE-119

Assigner

cisco

References

URL

Tags

	http://www.securityfocus.com/bid/100933	vdb-entryx_refsource_BID
	https://tools.cisco.com/security/center/content/C…	x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	n/a	Cisco Small Business Managed Switches	Affected: Cisco Small Business Managed Switches

Show details on NVD website

JSON

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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-2017-34211

CVE-2017-6720 (GCVE-0-2017-6720)

Tags

Sightings

Nomenclature