Vulnerability-Lookup

CNVD-2021-44989

Vulnerability from cnvd - Published: 2021-06-25

Title

Nextcloud Talk授权问题漏洞（CNVD-2021-44989）

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存在授权问题漏洞，该漏洞源于Talk中更改认证信息后未更改cookie会话数据。目前没有详细漏洞细节提供。

Severity

中

Patch Name

Nextcloud Talk授权问题漏洞（CNVD-2021-44989）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存在授权问题漏洞，该漏洞源于Talk中更改认证信息后未更改cookie会话数据。目前没有详细漏洞细节提供。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-p6h7-84v4-827r 参考网址

Reference

https://nvd.nist.gov/vuln/detail/CVE-2021-32676

Impacted products

Name
['Nextcloud NextCloud Talk <9.0.10', 'Nextcloud NextCloud Talk <10.0.8', 'Nextcloud NextCloud Talk <11.2.2']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-32676"
    }
  },
  "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\u5b58\u5728\u6388\u6743\u95ee\u9898\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eTalk\u4e2d\u66f4\u6539\u8ba4\u8bc1\u4fe1\u606f\u540e\u672a\u66f4\u6539cookie\u4f1a\u8bdd\u6570\u636e\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\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-p6h7-84v4-827r\r\n\u53c2\u8003\u7f51\u5740",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-44989",
  "openTime": "2021-06-25",
  "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\u5b58\u5728\u6388\u6743\u95ee\u9898\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8eTalk\u4e2d\u66f4\u6539\u8ba4\u8bc1\u4fe1\u606f\u540e\u672a\u66f4\u6539cookie\u4f1a\u8bdd\u6570\u636e\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\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\u6388\u6743\u95ee\u9898\u6f0f\u6d1e\uff08CNVD-2021-44989\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Nextcloud NextCloud Talk \u003c9.0.10",
      "Nextcloud NextCloud Talk \u003c10.0.8",
      "Nextcloud NextCloud Talk \u003c11.2.2"
    ]
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-32676",
  "serverity": "\u4e2d",
  "submitTime": "2021-06-16",
  "title": "Nextcloud Talk\u6388\u6743\u95ee\u9898\u6f0f\u6d1e\uff08CNVD-2021-44989\uff09"
}

CVE-2021-32676 (GCVE-0-2021-32676)

Vulnerability from cvelistv5 – Published: 2021-06-16 00:05 – Updated: 2024-08-03 23:25

Title

Session Fixation in Nextcloud Talk

Summary

Nextcloud Talk is a fully on-premises audio/video and chat communication service. Password protected shared chats in Talk before version 9.0.10, 10.0.8 and 11.2.2 did not rotate the session cookie after a successful authentication event. It is recommended that the Nextcloud Talk App is upgraded to 9.0.10, 10.0.8 or 11.2.2. No workarounds for this vulnerability are known to exist.

Severity

6.5 (Medium)


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

CWE

CWE-384 - Session Fixation

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/nextcloud/security-advisories/…	x_refsource_CONFIRM
https://hackerone.com/reports/1181962	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
nextcloud	security-advisories	Affected: < 9.0.10 Affected: >= 10.0.0, < 10.0.8 Affected: >= 11.0.0, < 11.2.2

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T23:25:31.060Z",
          "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-p6h7-84v4-827r"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://hackerone.com/reports/1181962"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "security-advisories",
          "vendor": "nextcloud",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 9.0.10"
            },
            {
              "status": "affected",
              "version": "\u003e= 10.0.0, \u003c 10.0.8"
            },
            {
              "status": "affected",
              "version": "\u003e= 11.0.0, \u003c 11.2.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Nextcloud Talk is a fully on-premises audio/video and chat communication service. Password protected shared chats in Talk before version 9.0.10, 10.0.8 and 11.2.2 did not rotate the session cookie after a successful authentication event. It is recommended that the Nextcloud Talk App is upgraded to 9.0.10, 10.0.8 or 11.2.2. No workarounds for this vulnerability are known to exist."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-384",
              "description": "CWE-384: Session Fixation",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-06-16T00:05:10.000Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-p6h7-84v4-827r"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://hackerone.com/reports/1181962"
        }
      ],
      "source": {
        "advisory": "GHSA-p6h7-84v4-827r",
        "discovery": "UNKNOWN"
      },
      "title": "Session Fixation in Nextcloud Talk",
      "x_legacyV4Record": {
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          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2021-32676",
          "STATE": "PUBLIC",
          "TITLE": "Session Fixation in Nextcloud Talk"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "security-advisories",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "\u003c 9.0.10"
                          },
                          {
                            "version_value": "\u003e= 10.0.0, \u003c 10.0.8"
                          },
                          {
                            "version_value": "\u003e= 11.0.0, \u003c 11.2.2"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "nextcloud"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Nextcloud Talk is a fully on-premises audio/video and chat communication service. Password protected shared chats in Talk before version 9.0.10, 10.0.8 and 11.2.2 did not rotate the session cookie after a successful authentication event. It is recommended that the Nextcloud Talk App is upgraded to 9.0.10, 10.0.8 or 11.2.2. No workarounds for this vulnerability are known to exist."
            }
          ]
        },
        "impact": {
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            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
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        "problemtype": {
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                  "value": "CWE-384: Session Fixation"
                }
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        },
        "references": {
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            {
              "name": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-p6h7-84v4-827r",
              "refsource": "CONFIRM",
              "url": "https://github.com/nextcloud/security-advisories/security/advisories/GHSA-p6h7-84v4-827r"
            },
            {
              "name": "https://hackerone.com/reports/1181962",
              "refsource": "MISC",
              "url": "https://hackerone.com/reports/1181962"
            }
          ]
        },
        "source": {
          "advisory": "GHSA-p6h7-84v4-827r",
          "discovery": "UNKNOWN"
        }
      }
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  "cveMetadata": {
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    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2021-32676",
    "datePublished": "2021-06-16T00:05:10.000Z",
    "dateReserved": "2021-05-12T00:00:00.000Z",
    "dateUpdated": "2024-08-03T23:25:31.060Z",
    "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.
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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.
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CNVD-2021-44989

CVE-2021-32676 (GCVE-0-2021-32676)

Tags

Sightings

Nomenclature

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