cnvd - cnvd-2017-34211

cnvd-2017-34211

Vulnerability from cnvd

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:

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）。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

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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{
  "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

Modified

2024-08-05 15:41

Severity ?

CWE

CWE-119

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.

References

▼	URL	Tags
	http://www.securityfocus.com/bid/100933	vdb-entry, x_refsource_BID
	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170920-sbms	x_refsource_CONFIRM

Impacted products

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

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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