cnvd - cnvd-2021-24468

CNVD-2021-24468

Vulnerability from cnvd - Published: 2021-04-02

Title

Cisco IOS XE任意文件覆盖漏洞（CNVD-2021-24468）

Description

Cisco IOS XE是美国Cisco公司为其网络设备开发的一套基于Linux内核的模块化操作系统。 Cisco IOS XE的SD-WAN的CLI存在任意文件覆盖漏洞。该漏洞源于对特定CLI命令的参数的验证不足。攻击者可利用该漏洞覆盖驻留在底层主机文件系统上的任意文件的内容。

Severity

中

Patch Name

Cisco IOS XE任意文件覆盖漏洞（CNVD-2021-24468）的补丁

Patch Description

Cisco IOS XE是美国Cisco公司为其网络设备开发的一套基于Linux内核的模块化操作系统。 Cisco IOS XE的SD-WAN的CLI存在任意文件覆盖漏洞。该漏洞源于对特定CLI命令的参数的验证不足。攻击者可利用该漏洞覆盖驻留在底层主机文件系统上的任意文件的内容。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

厂商已发布了漏洞修复程序，请及时关注更新： https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-arbfile-FUxskKDE

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-1434

Impacted products

Name
['Cisco IOS XE 16.11.1', 'Cisco IOS XE 16.11.1a', 'Cisco IOS XE 16.11.1b', 'Cisco IOS XE 16.11.1c', 'Cisco IOS XE 16.11.1s', 'Cisco IOS XE 16.11.2', 'Cisco IOS XE 17.2.1v', 'Cisco IOS XE 16.12.1', 'Cisco IOS XE 16.12.1a', 'Cisco IOS XE 16.12.1c', 'Cisco IOS XE 16.12.1s', 'Cisco IOS XE 16.12.1t', 'Cisco IOS XE 16.12.1w', 'Cisco IOS XE 16.12.1x', 'Cisco IOS XE 16.12.1y', 'Cisco IOS XE 16.12.1z', 'Cisco IOS XE 16.12.1za', 'Cisco IOS XE 16.12.2', 'Cisco IOS XE 16.12.2a', 'Cisco IOS XE 16.12.3', 'Cisco IOS XE 16.12.3a', 'Cisco IOS XE 16.12.3s', 'Cisco IOS XE 17.2.1', 'Cisco IOS XE 17.2.1a', 'Cisco IOS XE 17.2.1r']

Name

['Cisco IOS XE 16.11.1', 'Cisco IOS XE 16.11.1a', 'Cisco IOS XE 16.11.1b', 'Cisco IOS XE 16.11.1c', 'Cisco IOS XE 16.11.1s', 'Cisco IOS XE 16.11.2', 'Cisco IOS XE 17.2.1v', 'Cisco IOS XE 16.12.1', 'Cisco IOS XE 16.12.1a', 'Cisco IOS XE 16.12.1c', 'Cisco IOS XE 16.12.1s', 'Cisco IOS XE 16.12.1t', 'Cisco IOS XE 16.12.1w', 'Cisco IOS XE 16.12.1x', 'Cisco IOS XE 16.12.1y', 'Cisco IOS XE 16.12.1z', 'Cisco IOS XE 16.12.1za', 'Cisco IOS XE 16.12.2', 'Cisco IOS XE 16.12.2a', 'Cisco IOS XE 16.12.3', 'Cisco IOS XE 16.12.3a', 'Cisco IOS XE 16.12.3s', 'Cisco IOS XE 17.2.1', 'Cisco IOS XE 17.2.1a', 'Cisco IOS XE 17.2.1r']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-1434",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-1434"
    }
  },
  "description": "Cisco IOS XE\u662f\u7f8e\u56fdCisco\u516c\u53f8\u4e3a\u5176\u7f51\u7edc\u8bbe\u5907\u5f00\u53d1\u7684\u4e00\u5957\u57fa\u4e8eLinux\u5185\u6838\u7684\u6a21\u5757\u5316\u64cd\u4f5c\u7cfb\u7edf\u3002\n\nCisco IOS XE\u7684SD-WAN\u7684CLI\u5b58\u5728\u4efb\u610f\u6587\u4ef6\u8986\u76d6\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5bf9\u7279\u5b9aCLI\u547d\u4ee4\u7684\u53c2\u6570\u7684\u9a8c\u8bc1\u4e0d\u8db3\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u8986\u76d6\u9a7b\u7559\u5728\u5e95\u5c42\u4e3b\u673a\u6587\u4ef6\u7cfb\u7edf\u4e0a\u7684\u4efb\u610f\u6587\u4ef6\u7684\u5185\u5bb9\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-arbfile-FUxskKDE",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-24468",
  "openTime": "2021-04-02",
  "patchDescription": "Cisco IOS XE\u662f\u7f8e\u56fdCisco\u516c\u53f8\u4e3a\u5176\u7f51\u7edc\u8bbe\u5907\u5f00\u53d1\u7684\u4e00\u5957\u57fa\u4e8eLinux\u5185\u6838\u7684\u6a21\u5757\u5316\u64cd\u4f5c\u7cfb\u7edf\u3002\r\n\r\nCisco IOS XE\u7684SD-WAN\u7684CLI\u5b58\u5728\u4efb\u610f\u6587\u4ef6\u8986\u76d6\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5bf9\u7279\u5b9aCLI\u547d\u4ee4\u7684\u53c2\u6570\u7684\u9a8c\u8bc1\u4e0d\u8db3\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u8986\u76d6\u9a7b\u7559\u5728\u5e95\u5c42\u4e3b\u673a\u6587\u4ef6\u7cfb\u7edf\u4e0a\u7684\u4efb\u610f\u6587\u4ef6\u7684\u5185\u5bb9\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\u4efb\u610f\u6587\u4ef6\u8986\u76d6\u6f0f\u6d1e\uff08CNVD-2021-24468\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Cisco IOS XE 16.11.1",
      "Cisco IOS XE 16.11.1a",
      "Cisco IOS XE 16.11.1b",
      "Cisco IOS XE 16.11.1c",
      "Cisco IOS XE 16.11.1s",
      "Cisco IOS XE 16.11.2",
      "Cisco IOS XE 17.2.1v",
      "Cisco IOS XE 16.12.1",
      "Cisco IOS XE 16.12.1a",
      "Cisco IOS XE 16.12.1c",
      "Cisco IOS XE 16.12.1s",
      "Cisco IOS XE 16.12.1t",
      "Cisco IOS XE 16.12.1w",
      "Cisco IOS XE 16.12.1x",
      "Cisco IOS XE 16.12.1y",
      "Cisco IOS XE 16.12.1z",
      "Cisco IOS XE 16.12.1za",
      "Cisco IOS XE 16.12.2",
      "Cisco IOS XE 16.12.2a",
      "Cisco IOS XE 16.12.3",
      "Cisco IOS XE 16.12.3a",
      "Cisco IOS XE 16.12.3s",
      "Cisco IOS XE 17.2.1",
      "Cisco IOS XE 17.2.1a",
      "Cisco IOS XE 17.2.1r"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-1434",
  "serverity": "\u4e2d",
  "submitTime": "2021-03-25",
  "title": "Cisco IOS XE\u4efb\u610f\u6587\u4ef6\u8986\u76d6\u6f0f\u6d1e\uff08CNVD-2021-24468\uff09"
}

CVE-2021-1434 (GCVE-0-2021-1434)

Vulnerability from cvelistv5 – Published: 2021-03-24 20:05 – Updated: 2024-11-08 23:36

Summary

A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to overwrite arbitrary files in the underlying file system. This vulnerability is due to insufficient validation of the parameters of a specific CLI command. An attacker could exploit this vulnerability by issuing that command with specific parameters. A successful exploit could allow the attacker to overwrite the content of any arbitrary file that resides on the underlying host file system.

Severity ?

4.4 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

CWE

CWE-552

Assigner

cisco

References

URL

Tags

https://tools.cisco.com/security/center/content/C…

vendor-advisoryx_refsource_CISCO

Impacted products

	Vendor	Product	Version
	Cisco	Cisco IOS XE Software	Affected: n/a

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T16:11:17.259Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "20210324 Cisco IOS XE SD-WAN Software Arbitrary File Corruption Vulnerability",
            "tags": [
              "vendor-advisory",
              "x_refsource_CISCO",
              "x_transferred"
            ],
            "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-arbfile-FUxskKDE"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-1434",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-08T20:48:04.534219Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-08T23:36:06.708Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Cisco IOS XE Software",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "datePublic": "2021-03-24T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to overwrite arbitrary files in the underlying file system. This vulnerability is due to insufficient validation of the parameters of a specific CLI command. An attacker could exploit this vulnerability by issuing that command with specific parameters. A successful exploit could allow the attacker to overwrite the content of any arbitrary file that resides on the underlying host file system."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 4.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-552",
              "description": "CWE-552",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-03-24T20:05:36",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "20210324 Cisco IOS XE SD-WAN Software Arbitrary File Corruption Vulnerability",
          "tags": [
            "vendor-advisory",
            "x_refsource_CISCO"
          ],
          "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-arbfile-FUxskKDE"
        }
      ],
      "source": {
        "advisory": "cisco-sa-iosxe-arbfile-FUxskKDE",
        "defect": [
          [
            "CSCvu39228"
          ]
        ],
        "discovery": "INTERNAL"
      },
      "title": "Cisco IOS XE SD-WAN Software Arbitrary File Corruption Vulnerability",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "psirt@cisco.com",
          "DATE_PUBLIC": "2021-03-24T16:00:00",
          "ID": "CVE-2021-1434",
          "STATE": "PUBLIC",
          "TITLE": "Cisco IOS XE SD-WAN Software Arbitrary File Corruption Vulnerability"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Cisco IOS XE Software",
                      "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 CLI of Cisco IOS XE SD-WAN Software could allow an authenticated, local attacker to overwrite arbitrary files in the underlying file system. This vulnerability is due to insufficient validation of the parameters of a specific CLI command. An attacker could exploit this vulnerability by issuing that command with specific parameters. A successful exploit could allow the attacker to overwrite the content of any arbitrary file that resides on the underlying host file system."
            }
          ]
        },
        "exploit": [
          {
            "lang": "en",
            "value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
          }
        ],
        "impact": {
          "cvss": {
            "baseScore": "4.4",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N",
            "version": "3.0"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-552"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "20210324 Cisco IOS XE SD-WAN Software Arbitrary File Corruption Vulnerability",
              "refsource": "CISCO",
              "url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-arbfile-FUxskKDE"
            }
          ]
        },
        "source": {
          "advisory": "cisco-sa-iosxe-arbfile-FUxskKDE",
          "defect": [
            [
              "CSCvu39228"
            ]
          ],
          "discovery": "INTERNAL"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2021-1434",
    "datePublished": "2021-03-24T20:05:36.762093Z",
    "dateReserved": "2020-11-13T00:00:00",
    "dateUpdated": "2024-11-08T23:36:06.708Z",
    "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-2021-24468

CVE-2021-1434 (GCVE-0-2021-1434)

Tags

Sightings

Nomenclature