Vulnerability-Lookup

CNVD-2022-21824

Vulnerability from cnvd - Published: 2022-03-23

Title

Nextcloud Talk输入验证错误漏洞

Description

Nextcloud Talk是德国Nextcloud公司的一款自托管的本地音频/视频和聊天通信服务。 Nextcloud Talk 12.1.2之前版本存在用户重定向漏洞，该漏洞源于系统未对目标跳转的未做合理处理，攻击者可利用该漏洞将用户重定向的恶意网站从事钓鱼等攻击。

Severity

中

Patch Name

Nextcloud Talk输入验证错误漏洞的补丁

Patch Description

Nextcloud Talk是德国Nextcloud公司的一款自托管的本地音频/视频和聊天通信服务。 Nextcloud Talk 12.1.2之前版本存在用户重定向漏洞，该漏洞源于系统未对目标跳转的未做合理处理，攻击者可利用该漏洞将用户重定向的恶意网站从事钓鱼等攻击。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://github.com/nextcloud/security-advisories/security/advisories/GHSA-4fxr-mrw2-cq92

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-41180

Impacted products

Name
Nextcloud NextCloud Talk <12.1.2

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-41180",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-41180"
    }
  },
  "description": "Nextcloud Talk\u662f\u5fb7\u56fdNextcloud\u516c\u53f8\u7684\u4e00\u6b3e\u81ea\u6258\u7ba1\u7684\u672c\u5730\u97f3\u9891/\u89c6\u9891\u548c\u804a\u5929\u901a\u4fe1\u670d\u52a1\u3002\n\nNextcloud Talk 12.1.2\u4e4b\u524d\u7248\u672c\u5b58\u5728\u7528\u6237\u91cd\u5b9a\u5411\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7cfb\u7edf\u672a\u5bf9\u76ee\u6807\u8df3\u8f6c\u7684\u672a\u505a\u5408\u7406\u5904\u7406\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5c06\u7528\u6237\u91cd\u5b9a\u5411\u7684\u6076\u610f\u7f51\u7ad9\u4ece\u4e8b\u9493\u9c7c\u7b49\u653b\u51fb\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://github.com/nextcloud/security-advisories/security/advisories/GHSA-4fxr-mrw2-cq92",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-21824",
  "openTime": "2022-03-23",
  "patchDescription": "Nextcloud Talk\u662f\u5fb7\u56fdNextcloud\u516c\u53f8\u7684\u4e00\u6b3e\u81ea\u6258\u7ba1\u7684\u672c\u5730\u97f3\u9891/\u89c6\u9891\u548c\u804a\u5929\u901a\u4fe1\u670d\u52a1\u3002\r\n\r\nNextcloud Talk 12.1.2\u4e4b\u524d\u7248\u672c\u5b58\u5728\u7528\u6237\u91cd\u5b9a\u5411\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7cfb\u7edf\u672a\u5bf9\u76ee\u6807\u8df3\u8f6c\u7684\u672a\u505a\u5408\u7406\u5904\u7406\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5c06\u7528\u6237\u91cd\u5b9a\u5411\u7684\u6076\u610f\u7f51\u7ad9\u4ece\u4e8b\u9493\u9c7c\u7b49\u653b\u51fb\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": "Nextcloud Talk\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Nextcloud NextCloud Talk \u003c12.1.2"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-41180",
  "serverity": "\u4e2d",
  "submitTime": "2022-03-10",
  "title": "Nextcloud Talk\u8f93\u5165\u9a8c\u8bc1\u9519\u8bef\u6f0f\u6d1e"
}

CVE-2021-41180 (GCVE-0-2021-41180)

Vulnerability from cvelistv5 – Published: 2022-03-08 17:45 – Updated: 2025-04-22 18:20

Title

Geolocation preview links can be set to arbitrary links in nextcloud talk

Summary

Nextcloud talk is a self hosting messaging service. In versions prior 12.1.2 an attacker is able to control the link of a geolocation preview in the Nextcloud Talk application due to a lack of validation on the link. This could result in an open-redirect, but required user interaction. This only affected users of the Android Talk client. It is recommended that the Nextcloud Talk App is upgraded to 12.1.2. There are no known workarounds.

Severity

4.7 (Medium)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-04-22 15:49 UTC

CWE

CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/nextcloud/security-advisories/…	x_refsource_CONFIRM
https://github.com/nextcloud/spreed/pull/6239	x_refsource_MISC
https://hackerone.com/reports/1337178	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
nextcloud	security-advisories	Affected: < 12.1.2

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T02:59:31.642Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-4fxr-mrw2-cq92"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/nextcloud/spreed/pull/6239"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://hackerone.com/reports/1337178"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-41180",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-04-22T15:49:23.931338Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-04-22T18:20:21.541Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "security-advisories",
          "vendor": "nextcloud",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 12.1.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Nextcloud talk is a self hosting messaging service. In versions prior 12.1.2 an attacker is able to control the link of a geolocation preview in the Nextcloud Talk application due to a lack of validation on the link. This could result in an open-redirect, but required user interaction. This only affected users of the Android Talk client. It is recommended that the Nextcloud Talk App is upgraded to 12.1.2. There are no known workarounds."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-601",
              "description": "CWE-601: URL Redirection to Untrusted Site (\u0027Open Redirect\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2022-03-08T17:45:12.000Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-4fxr-mrw2-cq92"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/nextcloud/spreed/pull/6239"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://hackerone.com/reports/1337178"
        }
      ],
      "source": {
        "advisory": "GHSA-4fxr-mrw2-cq92",
        "discovery": "UNKNOWN"
      },
      "title": "Geolocation preview links can be set to arbitrary links in nextcloud talk",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2021-41180",
          "STATE": "PUBLIC",
          "TITLE": "Geolocation preview links can be set to arbitrary links in nextcloud talk"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "security-advisories",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "\u003c 12.1.2"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "nextcloud"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Nextcloud talk is a self hosting messaging service. In versions prior 12.1.2 an attacker is able to control the link of a geolocation preview in the Nextcloud Talk application due to a lack of validation on the link. This could result in an open-redirect, but required user interaction. This only affected users of the Android Talk client. It is recommended that the Nextcloud Talk App is upgraded to 12.1.2. There are no known workarounds."
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.7,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-601: URL Redirection to Untrusted Site (\u0027Open Redirect\u0027)"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-4fxr-mrw2-cq92",
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              "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-4fxr-mrw2-cq92"
            },
            {
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              "refsource": "MISC",
              "url": "https://github.com/nextcloud/spreed/pull/6239"
            },
            {
              "name": "https://hackerone.com/reports/1337178",
              "refsource": "MISC",
              "url": "https://hackerone.com/reports/1337178"
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  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2021-41180",
    "datePublished": "2022-03-08T17:45:12.000Z",
    "dateReserved": "2021-09-15T00:00:00.000Z",
    "dateUpdated": "2025-04-22T18:20:21.541Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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CNVD-2022-21824

CVE-2021-41180 (GCVE-0-2021-41180)

Tags

Sightings

Nomenclature

Related by attack behaviour