cnvd - cnvd-2020-64307

CNVD-2020-64307

Vulnerability from cnvd - Published: 2020-11-19

Title

Nextcloud Server加密问题漏洞

Description

Nextcloud是德国Nextcloud公司的一套开源的自托管文件同步和共享的通信应用平台。 Nextcloud Server 18.0.4存在安全漏洞，该漏洞源于用于加密的随机字符集太少，使得解密时间比预期的要短。目前没有详细的漏洞细节提供。

Severity

低

Patch Name

Nextcloud Server加密问题漏洞的补丁

Patch Description

Nextcloud是德国Nextcloud公司的一套开源的自托管文件同步和共享的通信应用平台。 Nextcloud Server 18.0.4存在安全漏洞，该漏洞源于用于加密的随机字符集太少，使得解密时间比预期的要短。目前没有详细的漏洞细节提供。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

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://www.foxitsoftware.com/support/security-bulletins.html

Reference

https://hackerone.com/reports/852841

Impacted products

Name
Nextcloud Nextcloud Server 18.0.4

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2020-8173",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2020-8173"
    }
  },
  "description": "Nextcloud\u662f\u5fb7\u56fdNextcloud\u516c\u53f8\u7684\u4e00\u5957\u5f00\u6e90\u7684\u81ea\u6258\u7ba1\u6587\u4ef6\u540c\u6b65\u548c\u5171\u4eab\u7684\u901a\u4fe1\u5e94\u7528\u5e73\u53f0\u3002\n\nNextcloud Server 18.0.4\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7528\u4e8e\u52a0\u5bc6\u7684\u968f\u673a\u5b57\u7b26\u96c6\u592a\u5c11\uff0c\u4f7f\u5f97\u89e3\u5bc6\u65f6\u95f4\u6bd4\u9884\u671f\u7684\u8981\u77ed\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\u6f0f\u6d1e\u7ec6\u8282\u63d0\u4f9b\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://www.foxitsoftware.com/support/security-bulletins.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-64307",
  "openTime": "2020-11-19",
  "patchDescription": "Nextcloud\u662f\u5fb7\u56fdNextcloud\u516c\u53f8\u7684\u4e00\u5957\u5f00\u6e90\u7684\u81ea\u6258\u7ba1\u6587\u4ef6\u540c\u6b65\u548c\u5171\u4eab\u7684\u901a\u4fe1\u5e94\u7528\u5e73\u53f0\u3002\r\n\r\nNextcloud Server 18.0.4\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7528\u4e8e\u52a0\u5bc6\u7684\u968f\u673a\u5b57\u7b26\u96c6\u592a\u5c11\uff0c\u4f7f\u5f97\u89e3\u5bc6\u65f6\u95f4\u6bd4\u9884\u671f\u7684\u8981\u77ed\u3002\u76ee\u524d\u6ca1\u6709\u8be6\u7ec6\u7684\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 Server\u52a0\u5bc6\u95ee\u9898\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Nextcloud Nextcloud Server 18.0.4"
  },
  "referenceLink": "https://hackerone.com/reports/852841",
  "serverity": "\u4f4e",
  "submitTime": "2020-11-09",
  "title": "Nextcloud Server\u52a0\u5bc6\u95ee\u9898\u6f0f\u6d1e"
}

CVE-2020-8173 (GCVE-0-2020-8173)

Vulnerability from cvelistv5 – Published: 2020-10-30 18:12 – Updated: 2024-08-04 09:56

Summary

A too small set of random characters being used for encryption in Nextcloud Server 18.0.4 allowed decryption in shorter time than intended.

Severity ?

No CVSS data available.

CWE

CWE-310 - Cryptographic Issues - Generic (CWE-310)

Assigner

hackerone

References

URL

Tags

	https://hackerone.com/reports/852841	x_refsource_MISC
	https://nextcloud.com/security/advisory/?id=NC-SA…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	n/a	Nextcloud Server	Affected: 18.0.4

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T09:56:27.378Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://hackerone.com/reports/852841"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://nextcloud.com/security/advisory/?id=NC-SA-2020-023"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Nextcloud Server",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "18.0.4"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A too small set of random characters being used for encryption in Nextcloud Server 18.0.4 allowed decryption in shorter time than intended."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-310",
              "description": "Cryptographic Issues - Generic (CWE-310)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2020-10-30T18:12:26",
        "orgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
        "shortName": "hackerone"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://hackerone.com/reports/852841"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://nextcloud.com/security/advisory/?id=NC-SA-2020-023"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "support@hackerone.com",
          "ID": "CVE-2020-8173",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Nextcloud Server",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "18.0.4"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "n/a"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
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              "value": "A too small set of random characters being used for encryption in Nextcloud Server 18.0.4 allowed decryption in shorter time than intended."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Cryptographic Issues - Generic (CWE-310)"
                }
              ]
            }
          ]
        },
        "references": {
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            {
              "name": "https://hackerone.com/reports/852841",
              "refsource": "MISC",
              "url": "https://hackerone.com/reports/852841"
            },
            {
              "name": "https://nextcloud.com/security/advisory/?id=NC-SA-2020-023",
              "refsource": "MISC",
              "url": "https://nextcloud.com/security/advisory/?id=NC-SA-2020-023"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "36234546-b8fa-4601-9d6f-f4e334aa8ea1",
    "assignerShortName": "hackerone",
    "cveId": "CVE-2020-8173",
    "datePublished": "2020-10-30T18:12:26",
    "dateReserved": "2020-01-28T00:00:00",
    "dateUpdated": "2024-08-04T09:56:27.378Z",
    "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-2020-64307

CVE-2020-8173 (GCVE-0-2020-8173)

Tags

Sightings

Nomenclature