Vulnerability-Lookup

CNVD-2018-21620

Vulnerability from cnvd - Published: 2018-10-24

Title

Blynk blynk-server路径遍历漏洞

Description

Blynk是一款用于控制Arduino和Raspberry Pi的应用程序。blynk-server是其中的一个服务器组件。 Blynk 0.39.7之前版本中的blynk-server存在目录遍历漏洞。攻击者可借助带有‘../’的URL并且该URL以/static或/static/js为开端利用该漏洞查看系统上的任意文件。

Severity

中

Patch Name

Blynk blynk-server路径遍历漏洞的补丁

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://github.com/blynkkk/blynk-server/releases/tag/v0.39.7

Reference

https://github.com/blynkkk/blynk-server/issues/1256

Impacted products

Name
Blynk Blynk <0.39.7

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-17785",
      "cveUrl": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-17785"
    }
  },
  "description": "Blynk\u662f\u4e00\u6b3e\u7528\u4e8e\u63a7\u5236Arduino\u548cRaspberry Pi\u7684\u5e94\u7528\u7a0b\u5e8f\u3002blynk-server\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u670d\u52a1\u5668\u7ec4\u4ef6\u3002\r\n\r\nBlynk 0.39.7\u4e4b\u524d\u7248\u672c\u4e2d\u7684blynk-server\u5b58\u5728\u76ee\u5f55\u904d\u5386\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u501f\u52a9\u5e26\u6709\u2018../\u2019\u7684URL\u5e76\u4e14\u8be5URL\u4ee5/static\u6216/static/js\u4e3a\u5f00\u7aef\u5229\u7528\u8be5\u6f0f\u6d1e\u67e5\u770b\u7cfb\u7edf\u4e0a\u7684\u4efb\u610f\u6587\u4ef6\u3002",
  "discovererName": "unKnow",
  "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://github.com/blynkkk/blynk-server/releases/tag/v0.39.7",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-21620",
  "openTime": "2018-10-24",
  "patchDescription": "Blynk\u662f\u4e00\u6b3e\u7528\u4e8e\u63a7\u5236Arduino\u548cRaspberry Pi\u7684\u5e94\u7528\u7a0b\u5e8f\u3002blynk-server\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u670d\u52a1\u5668\u7ec4\u4ef6\u3002\r\n\r\nBlynk 0.39.7\u4e4b\u524d\u7248\u672c\u4e2d\u7684blynk-server\u5b58\u5728\u76ee\u5f55\u904d\u5386\u6f0f\u6d1e\u3002\u653b\u51fb\u8005\u53ef\u501f\u52a9\u5e26\u6709\u2018../\u2019\u7684URL\u5e76\u4e14\u8be5URL\u4ee5/static\u6216/static/js\u4e3a\u5f00\u7aef\u5229\u7528\u8be5\u6f0f\u6d1e\u67e5\u770b\u7cfb\u7edf\u4e0a\u7684\u4efb\u610f\u6587\u4ef6\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": "Blynk blynk-server\u8def\u5f84\u904d\u5386\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Blynk Blynk \u003c0.39.7"
  },
  "referenceLink": "https://github.com/blynkkk/blynk-server/issues/1256",
  "serverity": "\u4e2d",
  "submitTime": "2018-10-17",
  "title": "Blynk blynk-server\u8def\u5f84\u904d\u5386\u6f0f\u6d1e"
}

CVE-2018-17785 (GCVE-0-2018-17785)

Vulnerability from cvelistv5 – Published: 2018-09-30 15:00 – Updated: 2024-09-16 17:09

Summary

In blynk-server in Blynk before 0.39.7, Directory Traversal exists via a ../ in a URI that has /static or /static/js at the beginning, as demonstrated by reading the /etc/passwd file.

Severity ?

No CVSS data available.

CWE

Assigner

mitre

References

URL

Tags

	https://github.com/blynkkk/blynk-server/issues/1256	x_refsource_CONFIRM
	https://github.com/blynkkk/blynk-server/releases/…	x_refsource_CONFIRM

Show details on NVD website

JSON

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          "dateUpdated": "2024-08-05T10:54:10.659Z",
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            "url": "https://github.com/blynkkk/blynk-server/releases/tag/v0.39.7"
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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-2018-21620

CVE-2018-17785 (GCVE-0-2018-17785)

Tags

Sightings

Nomenclature