cnvd-2018-20259
Vulnerability from cnvd
Title
Cisco IOS XE Software NAT SIP ALG拒绝服务漏洞
Description
Cisco IOS XE Software是美国思科（Cisco）公司的一套为其网络设备开发的操作系统。Network Address Translation（NAT）Session Initiation Protocol（SP）Application Layer Gateway（ALG）是其中的一个网关组件。 Cisco IOS XE Software中的NAT SIP ALG存在资源管理错误漏洞，该漏洞源于在执行NAT时，程序未能正确的处理传输中的SIP数据包。远程攻击者可通过向UDP 5060端口发送特制的SIP数据包利用该漏洞造成设备重新加载，导致拒绝服务。
Severity
高
Patch Name
Cisco IOS XE Software NAT SIP ALG拒绝服务漏洞的补丁
Patch Description
Cisco IOS XE Software是美国思科（Cisco）公司的一套为其网络设备开发的操作系统。Network Address Translation（NAT）Session Initiation Protocol（SP）Application Layer Gateway（ALG）是其中的一个网关组件。 Cisco IOS XE Software中的NAT SIP ALG存在资源管理错误漏洞，该漏洞源于在执行NAT时，程序未能正确的处理传输中的SIP数据包。远程攻击者可通过向UDP 5060端口发送特制的SIP数据包利用该漏洞造成设备重新加载，导致拒绝服务。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-20180926-sip-alg

Reference
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-sip-alg
Impacted products
Name
Cisco IOS XE Software
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-0476"
    }
  },
  "description": "Cisco IOS XE Software\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u5957\u4e3a\u5176\u7f51\u7edc\u8bbe\u5907\u5f00\u53d1\u7684\u64cd\u4f5c\u7cfb\u7edf\u3002Network Address Translation\uff08NAT\uff09Session Initiation Protocol\uff08SP\uff09Application Layer Gateway\uff08ALG\uff09\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u7f51\u5173\u7ec4\u4ef6\u3002\r\n\r\nCisco IOS XE Software\u4e2d\u7684NAT SIP ALG\u5b58\u5728\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5728\u6267\u884cNAT\u65f6\uff0c\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u7684\u5904\u7406\u4f20\u8f93\u4e2d\u7684SIP\u6570\u636e\u5305\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5411UDP 5060\u7aef\u53e3\u53d1\u9001\u7279\u5236\u7684SIP\u6570\u636e\u5305\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u8bbe\u5907\u91cd\u65b0\u52a0\u8f7d\uff0c\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\u3002",
  "discovererName": "Cisco",
  "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-20180926-sip-alg",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-20259",
  "openTime": "2018-09-30",
  "patchDescription": "Cisco IOS XE Software\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u5957\u4e3a\u5176\u7f51\u7edc\u8bbe\u5907\u5f00\u53d1\u7684\u64cd\u4f5c\u7cfb\u7edf\u3002Network Address Translation\uff08NAT\uff09Session Initiation Protocol\uff08SP\uff09Application Layer Gateway\uff08ALG\uff09\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u7f51\u5173\u7ec4\u4ef6\u3002\r\n\r\nCisco IOS XE Software\u4e2d\u7684NAT SIP ALG\u5b58\u5728\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5728\u6267\u884cNAT\u65f6\uff0c\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u7684\u5904\u7406\u4f20\u8f93\u4e2d\u7684SIP\u6570\u636e\u5305\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u5411UDP 5060\u7aef\u53e3\u53d1\u9001\u7279\u5236\u7684SIP\u6570\u636e\u5305\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u8bbe\u5907\u91cd\u65b0\u52a0\u8f7d\uff0c\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\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 IOS XE Software NAT SIP ALG\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Cisco IOS XE Software"
  },
  "referenceLink": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-sip-alg",
  "serverity": "\u9ad8",
  "submitTime": "2018-09-30",
  "title": "Cisco IOS XE Software NAT SIP ALG\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}


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