cnvd - cnvd-2018-18794

CNVD-2018-18794

Vulnerability from cnvd - Published: 2018-09-14

Title

Cisco Umbrella Enterprise Roaming Client输入验证漏洞

Description

Cisco Umbrella Enterprise Roaming Client（ERC）是美国思科（Cisco）公司的一款防火墙安全客户端。 Cisco Umbrella ERC 2.1.127之前版本中存在输入验证漏洞，该漏洞源于程序未能正确的实现文件系统权限，非管理员用户可将文件放入受限制的目录。本地攻击者可利用该漏洞将权限提升为管理员权限。

Severity

高

Patch Name

Cisco Umbrella Enterprise Roaming Client输入验证漏洞的补丁

Patch Description

Formal description

目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载： https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180905-umbrella-file-read

Reference

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0438

Impacted products

Name
Cisco Umbrella ERC < 2.1.127

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-0438"
    }
  },
  "description": "Cisco Umbrella Enterprise Roaming Client\uff08ERC\uff09\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u9632\u706b\u5899\u5b89\u5168\u5ba2\u6237\u7aef\u3002\r\n\r\nCisco Umbrella ERC 2.1.127\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u7684\u5b9e\u73b0\u6587\u4ef6\u7cfb\u7edf\u6743\u9650\uff0c\u975e\u7ba1\u7406\u5458\u7528\u6237\u53ef\u5c06\u6587\u4ef6\u653e\u5165\u53d7\u9650\u5236\u7684\u76ee\u5f55\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5c06\u6743\u9650\u63d0\u5347\u4e3a\u7ba1\u7406\u5458\u6743\u9650\u3002",
  "discovererName": "unknwon",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u8fd9\u4e2a\u5b89\u5168\u95ee\u9898\uff0c\u8bf7\u5230\u5382\u5546\u7684\u4e3b\u9875\u4e0b\u8f7d\uff1a\r\nhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180905-umbrella-file-read",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-18794",
  "openTime": "2018-09-14",
  "patchDescription": "Cisco Umbrella Enterprise Roaming Client\uff08ERC\uff09\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u9632\u706b\u5899\u5b89\u5168\u5ba2\u6237\u7aef\u3002\r\n\r\nCisco Umbrella ERC 2.1.127\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u7684\u5b9e\u73b0\u6587\u4ef6\u7cfb\u7edf\u6743\u9650\uff0c\u975e\u7ba1\u7406\u5458\u7528\u6237\u53ef\u5c06\u6587\u4ef6\u653e\u5165\u53d7\u9650\u5236\u7684\u76ee\u5f55\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5c06\u6743\u9650\u63d0\u5347\u4e3a\u7ba1\u7406\u5458\u6743\u9650\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 Umbrella Enterprise Roaming Client\u8f93\u5165\u9a8c\u8bc1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Cisco Umbrella ERC \u003c 2.1.127"
  },
  "referenceLink": "http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-0438",
  "serverity": "\u9ad8",
  "submitTime": "2018-09-10",
  "title": "Cisco Umbrella Enterprise Roaming Client\u8f93\u5165\u9a8c\u8bc1\u6f0f\u6d1e"
}

CVE-2018-0438 (GCVE-0-2018-0438)

Vulnerability from cvelistv5 – Published: 2018-10-05 14:00 – Updated: 2024-11-26 14:43

Summary

A vulnerability in the Cisco Umbrella Enterprise Roaming Client (ERC) could allow an authenticated, local attacker to elevate privileges to Administrator. To exploit the vulnerability, the attacker must authenticate with valid local user credentials. This vulnerability is due to improper implementation of file system permissions, which could allow non-administrative users to place files within restricted directories. An attacker could exploit this vulnerability by placing an executable file within the restricted directory, which when executed by the ERC client, would run with Administrator privileges.

Severity ?

No CVSS data available.

CWE

CWE-20

Assigner

cisco

References

URL

Tags

	https://tools.cisco.com/security/center/content/C…	vendor-advisoryx_refsource_CISCO
	http://www.securityfocus.com/bid/105286	vdb-entryx_refsource_BID
	https://www.exploit-db.com/exploits/45339/	exploitx_refsource_EXPLOIT-DB

Impacted products

	Vendor	Product	Version
	Cisco	Cisco Umbrella	Affected: n/a

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T03:28:11.154Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "20180905 Cisco Umbrella Enterprise Roaming Client Privilege Escalation Vulnerability",
            "tags": [
              "vendor-advisory",
              "x_refsource_CISCO",
              "x_transferred"
            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180905-umbrella-file-read"
          },
          {
            "name": "105286",
            "tags": [
              "vdb-entry",
              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/105286"
          },
          {
            "name": "45339",
            "tags": [
              "exploit",
              "x_refsource_EXPLOIT-DB",
              "x_transferred"
            ],
            "url": "https://www.exploit-db.com/exploits/45339/"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2018-0438",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-25T18:51:37.167724Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-26T14:43:08.723Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cisco Umbrella",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2018-09-05T00:00:00",
      "descriptions": [
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        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-20",
              "description": "CWE-20",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2018-10-07T09:57:02",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "20180905 Cisco Umbrella Enterprise Roaming Client Privilege Escalation Vulnerability",
          "tags": [
            "vendor-advisory",
            "x_refsource_CISCO"
          ],
          "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180905-umbrella-file-read"
        },
        {
          "name": "105286",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/105286"
        },
        {
          "name": "45339",
          "tags": [
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            "x_refsource_EXPLOIT-DB"
          ],
          "url": "https://www.exploit-db.com/exploits/45339/"
        }
      ],
      "source": {
        "advisory": "cisco-sa-20180905-umbrella-file-read",
        "defect": [
          [
            "CSCvj61288"
          ]
        ],
        "discovery": "UNKNOWN"
      },
      "title": "Cisco Umbrella Enterprise Roaming Client Privilege Escalation Vulnerability",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@cisco.com",
          "DATE_PUBLIC": "2018-09-05T16:00:00-0500",
          "ID": "CVE-2018-0438",
          "STATE": "PUBLIC",
          "TITLE": "Cisco Umbrella Enterprise Roaming Client Privilege Escalation Vulnerability"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Cisco Umbrella",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Cisco"
              }
            ]
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        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
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            {
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              "value": "A vulnerability in the Cisco Umbrella Enterprise Roaming Client (ERC) could allow an authenticated, local attacker to elevate privileges to Administrator. To exploit the vulnerability, the attacker must authenticate with valid local user credentials. This vulnerability is due to improper implementation of file system permissions, which could allow non-administrative users to place files within restricted directories. An attacker could exploit this vulnerability by placing an executable file within the restricted directory, which when executed by the ERC client, would run with Administrator privileges."
            }
          ]
        },
        "impact": {
          "cvss": {
            "baseScore": "7.8",
            "version": "3.0"
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        "problemtype": {
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                {
                  "lang": "eng",
                  "value": "CWE-20"
                }
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        },
        "references": {
          "reference_data": [
            {
              "name": "20180905 Cisco Umbrella Enterprise Roaming Client Privilege Escalation Vulnerability",
              "refsource": "CISCO",
              "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180905-umbrella-file-read"
            },
            {
              "name": "105286",
              "refsource": "BID",
              "url": "http://www.securityfocus.com/bid/105286"
            },
            {
              "name": "45339",
              "refsource": "EXPLOIT-DB",
              "url": "https://www.exploit-db.com/exploits/45339/"
            }
          ]
        },
        "source": {
          "advisory": "cisco-sa-20180905-umbrella-file-read",
          "defect": [
            [
              "CSCvj61288"
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          ],
          "discovery": "UNKNOWN"
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
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    "dateReserved": "2017-11-27T00:00:00",
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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-2018-18794

CVE-2018-0438 (GCVE-0-2018-0438)

Tags

Sightings

Nomenclature