Vulnerability-Lookup

CNVD-2021-45453

Vulnerability from cnvd - Published: 2021-06-28

Title

Synology Media Server服务器端请求伪造漏洞

Description

Synology Media Server提供多媒体服务，可通过DLNA/UPnP家庭设备浏览和播放Synology NAS中的多媒体内容。 Synology Media Server 1.8.3-2881之前版本的cgi组件存在服务器端请求伪造漏洞。远程攻击者可利用该漏洞访问内网资源。

Severity

中

Patch Name

Synology Media Server服务器端请求伪造漏洞的补丁

Patch Description

Synology Media Server提供多媒体服务，可通过DLNA/UPnP家庭设备浏览和播放Synology NAS中的多媒体内容。 Synology Media Server 1.8.3-2881之前版本的cgi组件存在服务器端请求伪造漏洞。远程攻击者可利用该漏洞访问内网资源。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

目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载： https://www.synology.com/security/advisory/Synology_SA_21_10

Reference

http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34808

Impacted products

Name
Flussonic Media Server < 1.8.3-2881

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-34808",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-34808"
    }
  },
  "description": "Synology Media Server\u63d0\u4f9b\u591a\u5a92\u4f53\u670d\u52a1\uff0c\u53ef\u901a\u8fc7DLNA/UPnP\u5bb6\u5ead\u8bbe\u5907\u6d4f\u89c8\u548c\u64ad\u653eSynology NAS\u4e2d\u7684\u591a\u5a92\u4f53\u5185\u5bb9\u3002\n\nSynology Media Server 1.8.3-2881\u4e4b\u524d\u7248\u672c\u7684cgi\u7ec4\u4ef6\u5b58\u5728\u670d\u52a1\u5668\u7aef\u8bf7\u6c42\u4f2a\u9020\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u8bbf\u95ee\u5185\u7f51\u8d44\u6e90\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u7ecf\u53d1\u5e03\u4e86\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u8fd9\u4e2a\u5b89\u5168\u95ee\u9898\uff0c\u8bf7\u5230\u5382\u5546\u7684\u4e3b\u9875\u4e0b\u8f7d\uff1a\r\nhttps://www.synology.com/security/advisory/Synology_SA_21_10",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-45453",
  "openTime": "2021-06-28",
  "patchDescription": "Synology Media Server\u63d0\u4f9b\u591a\u5a92\u4f53\u670d\u52a1\uff0c\u53ef\u901a\u8fc7DLNA/UPnP\u5bb6\u5ead\u8bbe\u5907\u6d4f\u89c8\u548c\u64ad\u653eSynology NAS\u4e2d\u7684\u591a\u5a92\u4f53\u5185\u5bb9\u3002\r\n\r\nSynology Media Server 1.8.3-2881\u4e4b\u524d\u7248\u672c\u7684cgi\u7ec4\u4ef6\u5b58\u5728\u670d\u52a1\u5668\u7aef\u8bf7\u6c42\u4f2a\u9020\u6f0f\u6d1e\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u8bbf\u95ee\u5185\u7f51\u8d44\u6e90\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": "Synology Media Server\u670d\u52a1\u5668\u7aef\u8bf7\u6c42\u4f2a\u9020\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Flussonic Media Server \u003c 1.8.3-2881"
  },
  "referenceLink": "http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34808",
  "serverity": "\u4e2d",
  "submitTime": "2021-06-22",
  "title": "Synology Media Server\u670d\u52a1\u5668\u7aef\u8bf7\u6c42\u4f2a\u9020\u6f0f\u6d1e"
}

CVE-2021-34808 (GCVE-0-2021-34808)

Vulnerability from cvelistv5 – Published: 2021-06-18 03:00 – Updated: 2024-09-17 03:47

Summary

Server-Side Request Forgery (SSRF) vulnerability in cgi component in Synology Media Server before 1.8.3-2881 allows remote attackers to access intranet resources via unspecified vectors.

Severity

5.8 (Medium)


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

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

synology mitre root

References

1 reference

URL	Tags
https://www.synology.com/security/advisory/Synolo…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
Synology	Media Server	Affected: unspecified , < 1.8.3-2881 (custom)

Date Public

2021-06-17 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T00:26:54.022Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
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            "tags": [
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              "x_transferred"
            ],
            "url": "https://www.synology.com/security/advisory/Synology_SA_21_10"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Media Server",
          "vendor": "Synology",
          "versions": [
            {
              "lessThan": "1.8.3-2881",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "datePublic": "2021-06-17T00:00:00.000Z",
      "descriptions": [
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          "value": "Server-Side Request Forgery (SSRF) vulnerability in cgi component in Synology Media Server before 1.8.3-2881 allows remote attackers to access intranet resources via unspecified vectors."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
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          "descriptions": [
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              "lang": "en",
              "type": "CWE"
            }
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      ],
      "providerMetadata": {
        "dateUpdated": "2021-06-18T03:00:32.000Z",
        "orgId": "db201096-a0cc-46c7-9a55-61d9e221bf01",
        "shortName": "synology"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.synology.com/security/advisory/Synology_SA_21_10"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security@synology.com",
          "DATE_PUBLIC": "2021-06-17T05:56:55.774603",
          "ID": "CVE-2021-34808",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "Media Server",
                      "version": {
                        "version_data": [
                          {
                            "affected": "\u003c",
                            "version_affected": "\u003c",
                            "version_value": "1.8.3-2881"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Synology"
              }
            ]
          }
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        "data_version": "4.0",
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        "references": {
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            {
              "name": "https://www.synology.com/security/advisory/Synology_SA_21_10",
              "refsource": "CONFIRM",
              "url": "https://www.synology.com/security/advisory/Synology_SA_21_10"
            }
          ]
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      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "db201096-a0cc-46c7-9a55-61d9e221bf01",
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    "datePublished": "2021-06-18T03:00:32.942Z",
    "dateReserved": "2021-06-16T00:00:00.000Z",
    "dateUpdated": "2024-09-17T03:47:41.516Z",
    "state": "PUBLISHED"
  },
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}

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.

Detection rules are retrieved from Rulezet.

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.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.