cnvd - cnvd-2017-36138

cnvd-2017-36138

Vulnerability from cnvd

Title: 多款Cisco产品Cisco NX-OS System Software TCL脚本子系统安全绕过漏洞

Description:

Cisco Multilayer Director Switches等都是美国思科（Cisco）公司的产品。Cisco Multilayer Director Switches是一款交换机产品。Nexus 2000 Series Fabric Extenders是一款Nexus 2000系列阵列扩展器。NX-OS System Software是使用在其中的一套操作系统。TCL scripting subsystem是其中的一个TCL脚本子系统。

多款Cisco产品中的Cisco NX-OS System Software的TCL脚本子系统存在安全绕过漏洞，该漏洞源于程序没有充分的验证用户提交的文件。本地攻击者可利用该漏洞绕过脚本沙盒并在底层操作系统上以已认证的用户权限执行任意命令。

Severity: 中

Patch Name: 多款Cisco产品Cisco NX-OS System Software TCL脚本子系统安全绕过漏洞的补丁

Patch Description:

多款Cisco产品中的Cisco NX-OS System Software的TCL脚本子系统存在安全绕过漏洞，该漏洞源于程序没有充分的验证用户提交的文件。本地攻击者可利用该漏洞绕过脚本沙盒并在底层操作系统上以已认证的用户权限执行任意命令。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-20171129-nxos5

Reference: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-nxos5

Impacted products

Name
['Cisco Nexus 3000 Series Switche', 'Cisco Nexus 5000 Series Switches', 'Cisco Nexus 6000 Series Switches', 'Cisco Nexus 9000 Series Switches in NX-OS mode', 'Cisco Nexus 7700 Series Switches', 'Cisco Nexus 5600 Platform Switches', 'Cisco Nexus 5500 Platform Switches', 'Cisco Nexus 2000 Series Fabric Extenders', 'Cisco Nexus 3500 Platform Switches', 'Cisco Multilayer Director Switches', 'Cisco Unified Computing System Manager', 'Cisco Nexus 7000 Series Switches 0', 'Cisco Nexus 9500 R-Series Line Cards and Fabric Modules']

Name

['Cisco Nexus 3000 Series Switche', 'Cisco Nexus 5000 Series Switches', 'Cisco Nexus 6000 Series Switches', 'Cisco Nexus 9000 Series Switches in NX-OS mode', 'Cisco Nexus 7700 Series Switches', 'Cisco Nexus 5600 Platform Switches', 'Cisco Nexus 5500 Platform Switches', 'Cisco Nexus 2000 Series Fabric Extenders', 'Cisco Nexus 3500 Platform Switches', 'Cisco Multilayer Director Switches', 'Cisco Unified Computing System Manager', 'Cisco Nexus 7000 Series Switches 0', 'Cisco Nexus 9500 R-Series Line Cards and Fabric Modules']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2017-12336"
    }
  },
  "description": "Cisco Multilayer Director Switches\u7b49\u90fd\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4ea7\u54c1\u3002Cisco Multilayer Director Switches\u662f\u4e00\u6b3e\u4ea4\u6362\u673a\u4ea7\u54c1\u3002Nexus 2000 Series Fabric Extenders\u662f\u4e00\u6b3eNexus 2000\u7cfb\u5217\u9635\u5217\u6269\u5c55\u5668\u3002NX-OS System Software\u662f\u4f7f\u7528\u5728\u5176\u4e2d\u7684\u4e00\u5957\u64cd\u4f5c\u7cfb\u7edf\u3002TCL scripting subsystem\u662f\u5176\u4e2d\u7684\u4e00\u4e2aTCL\u811a\u672c\u5b50\u7cfb\u7edf\u3002\r\n\r\n\u591a\u6b3eCisco\u4ea7\u54c1\u4e2d\u7684Cisco NX-OS System Software\u7684TCL\u811a\u672c\u5b50\u7cfb\u7edf\u5b58\u5728\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u6ca1\u6709\u5145\u5206\u7684\u9a8c\u8bc1\u7528\u6237\u63d0\u4ea4\u7684\u6587\u4ef6\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u811a\u672c\u6c99\u76d2\u5e76\u5728\u5e95\u5c42\u64cd\u4f5c\u7cfb\u7edf\u4e0a\u4ee5\u5df2\u8ba4\u8bc1\u7684\u7528\u6237\u6743\u9650\u6267\u884c\u4efb\u610f\u547d\u4ee4\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-20171129-nxos5",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2017-36138",
  "openTime": "2017-12-05",
  "patchDescription": "Cisco Multilayer Director Switches\u7b49\u90fd\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4ea7\u54c1\u3002Cisco Multilayer Director Switches\u662f\u4e00\u6b3e\u4ea4\u6362\u673a\u4ea7\u54c1\u3002Nexus 2000 Series Fabric Extenders\u662f\u4e00\u6b3eNexus 2000\u7cfb\u5217\u9635\u5217\u6269\u5c55\u5668\u3002NX-OS System Software\u662f\u4f7f\u7528\u5728\u5176\u4e2d\u7684\u4e00\u5957\u64cd\u4f5c\u7cfb\u7edf\u3002TCL scripting subsystem\u662f\u5176\u4e2d\u7684\u4e00\u4e2aTCL\u811a\u672c\u5b50\u7cfb\u7edf\u3002\r\n\r\n\u591a\u6b3eCisco\u4ea7\u54c1\u4e2d\u7684Cisco NX-OS System Software\u7684TCL\u811a\u672c\u5b50\u7cfb\u7edf\u5b58\u5728\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u6ca1\u6709\u5145\u5206\u7684\u9a8c\u8bc1\u7528\u6237\u63d0\u4ea4\u7684\u6587\u4ef6\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u811a\u672c\u6c99\u76d2\u5e76\u5728\u5e95\u5c42\u64cd\u4f5c\u7cfb\u7edf\u4e0a\u4ee5\u5df2\u8ba4\u8bc1\u7684\u7528\u6237\u6743\u9650\u6267\u884c\u4efb\u610f\u547d\u4ee4\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": "\u591a\u6b3eCisco\u4ea7\u54c1Cisco NX-OS System Software TCL\u811a\u672c\u5b50\u7cfb\u7edf\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Cisco Nexus 3000 Series Switche",
      "Cisco Nexus 5000 Series Switches",
      "Cisco Nexus 6000 Series Switches",
      "Cisco Nexus 9000 Series Switches in NX-OS mode",
      "Cisco Nexus 7700 Series Switches",
      "Cisco Nexus 5600 Platform Switches",
      "Cisco Nexus 5500 Platform Switches",
      "Cisco Nexus 2000 Series Fabric Extenders",
      "Cisco Nexus 3500 Platform Switches",
      "Cisco Multilayer Director Switches",
      "Cisco Unified Computing System Manager",
      "Cisco Nexus 7000 Series Switches 0",
      "Cisco Nexus 9500 R-Series Line Cards and Fabric Modules"
    ]
  },
  "referenceLink": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-nxos5",
  "serverity": "\u4e2d",
  "submitTime": "2017-12-04",
  "title": "\u591a\u6b3eCisco\u4ea7\u54c1Cisco NX-OS System Software TCL\u811a\u672c\u5b50\u7cfb\u7edf\u5b89\u5168\u7ed5\u8fc7\u6f0f\u6d1e"
}

CVE-2017-12336 (GCVE-0-2017-12336)

Vulnerability from cvelistv5

Published

2017-11-30 09:00

Modified

2024-08-05 18:36

Severity ?

CWE

CWE-20

Summary

A vulnerability in the TCL scripting subsystem of Cisco NX-OS System Software could allow an authenticated, local attacker to escape the interactive TCL shell and gain unauthorized access to the underlying operating system of the device. The vulnerability exists due to insufficient input validation of user-supplied files passed to the interactive TCL shell of the affected device. An attacker could exploit this vulnerability to escape the scripting sandbox and execute arbitrary commands on the underlying operating system with the privileges of the authenticated user. To exploit this vulnerability, an attacker must have local access and be authenticated to the targeted device with administrative or tclsh execution privileges. This vulnerability affects the following products running Cisco NX-OS System Software: Multilayer Director Switches, Nexus 2000 Series Fabric Extenders, Nexus 3000 Series Switches, Nexus 3500 Platform Switches, Nexus 5000 Series Switches, Nexus 5500 Platform Switches, Nexus 5600 Platform Switches, Nexus 6000 Series Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches, Nexus 9000 Series Switches in standalone NX-OS mode, Nexus 9500 R-Series Line Cards and Fabric Modules, Unified Computing System Manager. Cisco Bug IDs: CSCve93750, CSCve93762, CSCve93763, CSCvg04127.

References

▼	URL	Tags
	http://www.securityfocus.com/bid/102168	vdb-entry, x_refsource_BID
	http://www.securitytracker.com/id/1039936	vdb-entry, x_refsource_SECTRACK
	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-nxos5	x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	n/a	Cisco NX-OS	Version: Cisco NX-OS

Show details on NVD website

JSON

To clipboard

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            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-nxos5"
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        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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          "product": "Cisco NX-OS",
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          "value": "A vulnerability in the TCL scripting subsystem of Cisco NX-OS System Software could allow an authenticated, local attacker to escape the interactive TCL shell and gain unauthorized access to the underlying operating system of the device. The vulnerability exists due to insufficient input validation of user-supplied files passed to the interactive TCL shell of the affected device. An attacker could exploit this vulnerability to escape the scripting sandbox and execute arbitrary commands on the underlying operating system with the privileges of the authenticated user. To exploit this vulnerability, an attacker must have local access and be authenticated to the targeted device with administrative or tclsh execution privileges. This vulnerability affects the following products running Cisco NX-OS System Software: Multilayer Director Switches, Nexus 2000 Series Fabric Extenders, Nexus 3000 Series Switches, Nexus 3500 Platform Switches, Nexus 5000 Series Switches, Nexus 5500 Platform Switches, Nexus 5600 Platform Switches, Nexus 6000 Series Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches, Nexus 9000 Series Switches in standalone NX-OS mode, Nexus 9500 R-Series Line Cards and Fabric Modules, Unified Computing System Manager. Cisco Bug IDs: CSCve93750, CSCve93762, CSCve93763, CSCvg04127."
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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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