Vulnerability-Lookup

CNVD-2018-12817

Vulnerability from cnvd - Published: 2018-07-10

Title

Synology SSL VPN Client中间人攻击漏洞

Description

Synology SSL VPN Client是群晖科技（Synology）公司的一款用于连接内部加密网络的VPN客户端软件。 Synology SSL VPN Client 1.2.4-0224之前版本中的HTTP守护进程存在安全漏洞，该漏洞源于程序未能对到达端点的通信通道执行正确的限制。远程攻击者可借助特制的载荷利用该漏洞实施中间人攻击。

Severity

中

Patch Name

Synology SSL VPN Client中间人攻击漏洞的补丁

Patch Description

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.synology.cn/en-global/support/security/Synology_SA_18_19

Reference

https://www.synology.com/en-global/support/security/Synology_SA_18_19

Impacted products

Name
Synology SSL VPN Client <1.2.4-0224

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-8929"
    }
  },
  "description": "Synology SSL VPN Client\u662f\u7fa4\u6656\u79d1\u6280\uff08Synology\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u7528\u4e8e\u8fde\u63a5\u5185\u90e8\u52a0\u5bc6\u7f51\u7edc\u7684VPN\u5ba2\u6237\u7aef\u8f6f\u4ef6\u3002\r\n\r\nSynology SSL VPN Client 1.2.4-0224\u4e4b\u524d\u7248\u672c\u4e2d\u7684HTTP\u5b88\u62a4\u8fdb\u7a0b\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u5bf9\u5230\u8fbe\u7aef\u70b9\u7684\u901a\u4fe1\u901a\u9053\u6267\u884c\u6b63\u786e\u7684\u9650\u5236\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684\u8f7d\u8377\u5229\u7528\u8be5\u6f0f\u6d1e\u5b9e\u65bd\u4e2d\u95f4\u4eba\u653b\u51fb\u3002",
  "discovererName": "unknown",
  "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.synology.cn/en-global/support/security/Synology_SA_18_19",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-12817",
  "openTime": "2018-07-10",
  "patchDescription": "Synology SSL VPN Client\u662f\u7fa4\u6656\u79d1\u6280\uff08Synology\uff09\u516c\u53f8\u7684\u4e00\u6b3e\u7528\u4e8e\u8fde\u63a5\u5185\u90e8\u52a0\u5bc6\u7f51\u7edc\u7684VPN\u5ba2\u6237\u7aef\u8f6f\u4ef6\u3002\r\n\r\nSynology SSL VPN Client 1.2.4-0224\u4e4b\u524d\u7248\u672c\u4e2d\u7684HTTP\u5b88\u62a4\u8fdb\u7a0b\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u5bf9\u5230\u8fbe\u7aef\u70b9\u7684\u901a\u4fe1\u901a\u9053\u6267\u884c\u6b63\u786e\u7684\u9650\u5236\u3002\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684\u8f7d\u8377\u5229\u7528\u8be5\u6f0f\u6d1e\u5b9e\u65bd\u4e2d\u95f4\u4eba\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": "Synology SSL VPN Client\u4e2d\u95f4\u4eba\u653b\u51fb\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Synology SSL VPN Client \u003c1.2.4-0224"
  },
  "referenceLink": "https://www.synology.com/en-global/support/security/Synology_SA_18_19",
  "serverity": "\u4e2d",
  "submitTime": "2018-07-10",
  "title": "Synology SSL VPN Client\u4e2d\u95f4\u4eba\u653b\u51fb\u6f0f\u6d1e"
}

CVE-2018-8929 (GCVE-0-2018-8929)

Vulnerability from cvelistv5 – Published: 2018-07-06 12:00 – Updated: 2024-09-16 20:41

Summary

Improper restriction of communication channel to intended endpoints vulnerability in HTTP daemon in Synology SSL VPN Client before 1.2.4-0224 allows remote attackers to conduct man-in-the-middle attacks via a crafted payload.

Severity

7.3 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

CWE

CWE-319 - Cleartext Transmission of Sensitive Information

Assigner

synology mitre root

References

1 reference

URL	Tags
https://www.synology.com/en-global/support/securi…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
Synology	SSL VPN Client	Affected: unspecified , < 1.2.4-0224 (custom)

Date Public

2018-07-06 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T07:10:46.759Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://www.synology.com/en-global/support/security/Synology_SA_18_19"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "SSL VPN Client",
          "vendor": "Synology",
          "versions": [
            {
              "lessThan": "1.2.4-0224",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "datePublic": "2018-07-06T00:00:00.000Z",
      "descriptions": [
        {
          "lang": "en",
          "value": "Improper restriction of communication channel to intended endpoints vulnerability in HTTP daemon in Synology SSL VPN Client before 1.2.4-0224 allows remote attackers to conduct man-in-the-middle attacks via a crafted payload."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
            "version": "3.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-319",
              "description": "CWE-319: Cleartext Transmission of Sensitive Information",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-05-12T12:50:49.000Z",
        "orgId": "db201096-a0cc-46c7-9a55-61d9e221bf01",
        "shortName": "synology"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://www.synology.com/en-global/support/security/Synology_SA_18_19"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security@synology.com",
          "DATE_PUBLIC": "2018-07-06T00:00:00",
          "ID": "CVE-2018-8929",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "SSL VPN Client",
                      "version": {
                        "version_data": [
                          {
                            "affected": "\u003c",
                            "version_affected": "\u003c",
                            "version_value": "1.2.4-0224"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "Synology"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Improper restriction of communication channel to intended endpoints vulnerability in HTTP daemon in Synology SSL VPN Client before 1.2.4-0224 allows remote attackers to conduct man-in-the-middle attacks via a crafted payload."
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
            "version": "3.0"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "CWE-319: Cleartext Transmission of Sensitive Information"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://www.synology.com/en-global/support/security/Synology_SA_18_19",
              "refsource": "CONFIRM",
              "url": "https://www.synology.com/en-global/support/security/Synology_SA_18_19"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "db201096-a0cc-46c7-9a55-61d9e221bf01",
    "assignerShortName": "synology",
    "cveId": "CVE-2018-8929",
    "datePublished": "2018-07-06T12:00:00.000Z",
    "dateReserved": "2018-03-22T00:00:00.000Z",
    "dateUpdated": "2024-09-16T20:41:43.731Z",
    "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.

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.