cnvd - cnvd-2020-31998

CNVD-2020-31998

Vulnerability from cnvd - Published: 2020-06-09

Title

多款Cisco产品输入验证错误漏洞（CNVD-2020-31998）

Description

Cisco IP Phone 7811等都是美国思科（Cisco）公司的一款IP电话。多款Cisco产品的Web server中存在输入验证错误漏洞，该漏洞源于程序未能对HTTP请求进行正确的输入验证。攻击者可借助特制HTTP请求利用该漏洞以root权限执行代码或造成拒绝服务。

Severity

高

Patch Name

多款Cisco产品输入验证错误漏洞（CNVD-2020-31998）的补丁

Patch Description

Cisco IP Phone 7811等都是美国思科（Cisco）公司的一款IP电话。多款Cisco产品的Web server中存在输入验证错误漏洞，该漏洞源于程序未能对HTTP请求进行正确的输入验证。攻击者可借助特制HTTP请求利用该漏洞以root权限执行代码或造成拒绝服务。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-voip-phones-rce-dos-rB6EeRXs

Reference

https://nvd.nist.gov/vuln/detail/CVE-2020-3161

Impacted products

Name
['Cisco IP Phone 7861', 'Cisco IP Phone 7811', 'Cisco IP Phone 7821', 'Cisco IP Phone 7841', 'Cisco IP Phone 8811', 'Cisco IP Phone 8841', 'Cisco IP Phone 8845', 'Cisco IP Phone 8851', 'Cisco IP Phone 8861', 'Cisco IP Phone 8865', 'Cisco Unified IP Conference Phone 8831', 'Cisco Wireless IP Phone 8821', 'Cisco Wireless IP Phone 8821-EX']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-3161"
    }
  },
  "description": "Cisco IP Phone 7811\u7b49\u90fd\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u6b3eIP\u7535\u8bdd\u3002\n\n\u591a\u6b3eCisco\u4ea7\u54c1\u7684Web server\u4e2d\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u5bf9HTTP\u8bf7\u6c42\u8fdb\u884c\u6b63\u786e\u7684\u8f93\u5165\u9a8c\u8bc1\u3002\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236HTTP\u8bf7\u6c42\u5229\u7528\u8be5\u6f0f\u6d1e\u4ee5root\u6743\u9650\u6267\u884c\u4ee3\u7801\u6216\u9020\u6210\u62d2\u7edd\u670d\u52a1\u3002",
  "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-voip-phones-rce-dos-rB6EeRXs",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-31998",
  "openTime": "2020-06-09",
  "patchDescription": "Cisco IP Phone 7811\u7b49\u90fd\u662f\u7f8e\u56fd\u601d\u79d1\uff08Cisco\uff09\u516c\u53f8\u7684\u4e00\u6b3eIP\u7535\u8bdd\u3002\r\n\r\n\u591a\u6b3eCisco\u4ea7\u54c1\u7684Web server\u4e2d\u5b58\u5728\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u5bf9HTTP\u8bf7\u6c42\u8fdb\u884c\u6b63\u786e\u7684\u8f93\u5165\u9a8c\u8bc1\u3002\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236HTTP\u8bf7\u6c42\u5229\u7528\u8be5\u6f0f\u6d1e\u4ee5root\u6743\u9650\u6267\u884c\u4ee3\u7801\u6216\u9020\u6210\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": "\u591a\u6b3eCisco\u4ea7\u54c1\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff08CNVD-2020-31998\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Cisco IP Phone 7861",
      "Cisco IP Phone 7811",
      "Cisco IP Phone 7821",
      "Cisco IP Phone 7841",
      "Cisco IP Phone 8811",
      "Cisco IP Phone 8841",
      "Cisco IP Phone 8845",
      "Cisco IP Phone 8851",
      "Cisco IP Phone 8861",
      "Cisco IP Phone 8865",
      "Cisco Unified IP Conference Phone 8831",
      "Cisco Wireless IP Phone 8821",
      "Cisco Wireless IP Phone 8821-EX"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-3161",
  "serverity": "\u9ad8",
  "submitTime": "2020-04-16",
  "title": "\u591a\u6b3eCisco\u4ea7\u54c1\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\uff08CNVD-2020-31998\uff09"
}

CVE-2020-3161 (GCVE-0-2020-3161)

Vulnerability from cvelistv5 – Published: 2020-04-15 20:10 – Updated: 2025-10-21 23:35

Summary

A vulnerability in the web server for Cisco IP Phones could allow an unauthenticated, remote attacker to execute code with root privileges or cause a reload of an affected IP phone, resulting in a denial of service (DoS) condition. The vulnerability is due to a lack of proper input validation of HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web server of a targeted device. A successful exploit could allow the attacker to remotely execute code with root privileges or cause a reload of an affected IP phone, resulting in a DoS condition.

Severity ?

9.8 (Critical)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-20

Assigner

cisco

References

URL

Tags

	https://tools.cisco.com/security/center/content/C…	vendor-advisoryx_refsource_CISCO
	http://packetstormsecurity.com/files/157265/Cisco…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	Cisco	Cisco IP phone	Affected: n/a

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T07:24:00.645Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "20200415 Cisco IP Phones Web Server Remote Code Execution and Denial of Service Vulnerability",
            "tags": [
              "vendor-advisory",
              "x_refsource_CISCO",
              "x_transferred"
            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-voip-phones-rce-dos-rB6EeRXs"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/157265/Cisco-IP-Phone-11.7-Denial-Of-Service.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2020-3161",
                "options": [
                  {
                    "Exploitation": "active"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-08T16:11:11.668072Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          },
          {
            "other": {
              "content": {
                "dateAdded": "2021-11-03",
                "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-3161"
              },
              "type": "kev"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-10-21T23:35:45.888Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "government-resource"
            ],
            "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-3161"
          }
        ],
        "timeline": [
          {
            "lang": "en",
            "time": "2021-11-03T00:00:00+00:00",
            "value": "CVE-2020-3161 added to CISA KEV"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cisco IP phone",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2020-04-15T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the web server for Cisco IP Phones could allow an unauthenticated, remote attacker to execute code with root privileges or cause a reload of an affected IP phone, resulting in a denial of service (DoS) condition. The vulnerability is due to a lack of proper input validation of HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web server of a targeted device. A successful exploit could allow the attacker to remotely execute code with root privileges or cause a reload of an affected IP phone, resulting in a DoS condition."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "The Cisco Product Security Incident Response Team (PSIRT) is aware of public announcements about the vulnerability that is described in this advisory. Cisco PSIRT is not aware of any malicious use of this vulnerability."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 9.8,
            "baseSeverity": "CRITICAL",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-20",
              "description": "CWE-20",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-04-17T16:05:59.000Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "20200415 Cisco IP Phones Web Server Remote Code Execution and Denial of Service Vulnerability",
          "tags": [
            "vendor-advisory",
            "x_refsource_CISCO"
          ],
          "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-voip-phones-rce-dos-rB6EeRXs"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://packetstormsecurity.com/files/157265/Cisco-IP-Phone-11.7-Denial-Of-Service.html"
        }
      ],
      "source": {
        "advisory": "cisco-sa-voip-phones-rce-dos-rB6EeRXs",
        "defect": [
          [
            "CSCuz03016",
            "CSCvs78272",
            "CSCvs78441"
          ]
        ],
        "discovery": "INTERNAL"
      },
      "title": "Cisco IP Phones Web Server Remote Code Execution and Denial of Service Vulnerability",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@cisco.com",
          "DATE_PUBLIC": "2020-04-15T16:00:00-0700",
          "ID": "CVE-2020-3161",
          "STATE": "PUBLIC",
          "TITLE": "Cisco IP Phones Web Server Remote Code Execution and Denial of Service Vulnerability"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Cisco IP phone",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "n/a"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Cisco"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "A vulnerability in the web server for Cisco IP Phones could allow an unauthenticated, remote attacker to execute code with root privileges or cause a reload of an affected IP phone, resulting in a denial of service (DoS) condition. The vulnerability is due to a lack of proper input validation of HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to the web server of a targeted device. A successful exploit could allow the attacker to remotely execute code with root privileges or cause a reload of an affected IP phone, resulting in a DoS condition."
            }
          ]
        },
        "exploit": [
          {
            "lang": "en",
            "value": "The Cisco Product Security Incident Response Team (PSIRT) is aware of public announcements about the vulnerability that is described in this advisory. Cisco PSIRT is not aware of any malicious use of this vulnerability."
          }
        ],
        "impact": {
          "cvss": {
            "baseScore": "9.8",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-20"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "20200415 Cisco IP Phones Web Server Remote Code Execution and Denial of Service Vulnerability",
              "refsource": "CISCO",
              "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-voip-phones-rce-dos-rB6EeRXs"
            },
            {
              "name": "http://packetstormsecurity.com/files/157265/Cisco-IP-Phone-11.7-Denial-Of-Service.html",
              "refsource": "MISC",
              "url": "http://packetstormsecurity.com/files/157265/Cisco-IP-Phone-11.7-Denial-Of-Service.html"
            }
          ]
        },
        "source": {
          "advisory": "cisco-sa-voip-phones-rce-dos-rB6EeRXs",
          "defect": [
            [
              "CSCuz03016",
              "CSCvs78272",
              "CSCvs78441"
            ]
          ],
          "discovery": "INTERNAL"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2020-3161",
    "datePublished": "2020-04-15T20:10:11.570Z",
    "dateReserved": "2019-12-12T00:00:00.000Z",
    "dateUpdated": "2025-10-21T23:35:45.888Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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-2020-31998

CVE-2020-3161 (GCVE-0-2020-3161)

Tags

Sightings

Nomenclature