Vulnerability-Lookup

CNVD-2021-14402

Vulnerability from cnvd - Published: 2021-03-04

Title

docsify跨站脚本漏洞（CNVD-2021-14402）

Description

docsify是一款文档网站生成器。 docsify 4.12.0之前版本中存在跨站脚本漏洞。该漏洞源于可以通过插入更多“////”字符绕过isURL外部检查，从远程url解析HTML时，对主页上的HTML代码进行清理，但这种清理未能会在侧边栏中进行。攻击者可通过该漏洞执行Javascript代码。

Severity

中

Patch Name

docsify跨站脚本漏洞（CNVD-2021-14402）的补丁

Patch Description

docsify是一款文档网站生成器。 docsify 4.12.0之前版本中存在跨站脚本漏洞。该漏洞源于可以通过插入更多“////”字符绕过isURL外部检查，从远程url解析HTML时，对主页上的HTML代码进行清理，但这种清理未能会在侧边栏中进行。攻击者可通过该漏洞执行Javascript代码。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://github.com/docsifyjs/docsify/commit/ff2a66f12752471277fe81a64ad6c4b2c08111fe

Reference

https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1076593

Impacted products

Name
docsify docsify <4.12.0

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-23342",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-23342"
    }
  },
  "description": "docsify\u662f\u4e00\u6b3e\u6587\u6863\u7f51\u7ad9\u751f\u6210\u5668\u3002\n\ndocsify 4.12.0\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u53ef\u4ee5\u901a\u8fc7\u63d2\u5165\u66f4\u591a\u201c////\u201d\u5b57\u7b26\u7ed5\u8fc7isURL\u5916\u90e8\u68c0\u67e5\uff0c\u4ece\u8fdc\u7a0burl\u89e3\u6790HTML\u65f6\uff0c\u5bf9\u4e3b\u9875\u4e0a\u7684HTML\u4ee3\u7801\u8fdb\u884c\u6e05\u7406\uff0c\u4f46\u8fd9\u79cd\u6e05\u7406\u672a\u80fd\u4f1a\u5728\u4fa7\u8fb9\u680f\u4e2d\u8fdb\u884c\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u8be5\u6f0f\u6d1e\u6267\u884cJavascript\u4ee3\u7801\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\uff1ahttps://github.com/docsifyjs/docsify/commit/ff2a66f12752471277fe81a64ad6c4b2c08111fe",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-14402",
  "openTime": "2021-03-04",
  "patchDescription": "docsify\u662f\u4e00\u6b3e\u6587\u6863\u7f51\u7ad9\u751f\u6210\u5668\u3002\r\n\r\ndocsify 4.12.0\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u53ef\u4ee5\u901a\u8fc7\u63d2\u5165\u66f4\u591a\u201c////\u201d\u5b57\u7b26\u7ed5\u8fc7isURL\u5916\u90e8\u68c0\u67e5\uff0c\u4ece\u8fdc\u7a0burl\u89e3\u6790HTML\u65f6\uff0c\u5bf9\u4e3b\u9875\u4e0a\u7684HTML\u4ee3\u7801\u8fdb\u884c\u6e05\u7406\uff0c\u4f46\u8fd9\u79cd\u6e05\u7406\u672a\u80fd\u4f1a\u5728\u4fa7\u8fb9\u680f\u4e2d\u8fdb\u884c\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u8be5\u6f0f\u6d1e\u6267\u884cJavascript\u4ee3\u7801\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": "docsify\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff08CNVD-2021-14402\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "docsify docsify \u003c4.12.0"
  },
  "referenceLink": "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1076593",
  "serverity": "\u4e2d",
  "submitTime": "2021-03-03",
  "title": "docsify\u8de8\u7ad9\u811a\u672c\u6f0f\u6d1e\uff08CNVD-2021-14402\uff09"
}

CVE-2021-23342 (GCVE-0-2021-23342)

Vulnerability from cvelistv5 – Published: 2021-02-19 16:35 – Updated: 2024-09-16 22:39

Title

Cross-site Scripting (XSS)

Summary

This affects the package docsify before 4.12.0. It is possible to bypass the remediation done by CVE-2020-7680 and execute malicious JavaScript through the following methods 1) When parsing HTML from remote URLs, the HTML code on the main page is sanitized, but this sanitization is not taking place in the sidebar. 2) The isURL external check can be bypassed by inserting more “////” characters

Severity

8.6 (High)


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

CWE

Cross-site Scripting (XSS)

Assigner

snyk mitre root Scorecard

References

5 references

URL	Tags
https://snyk.io/vuln/SNYK-JS-DOCSIFY-1066017	x_refsource_MISC
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1076593	x_refsource_MISC
https://github.com/docsifyjs/docsify/commit/ff2a6…	x_refsource_MISC
http://seclists.org/fulldisclosure/2021/Feb/71	mailing-listx_refsource_FULLDISC
http://packetstormsecurity.com/files/161495/docsi…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
n/a	docsify	Affected: unspecified , < 4.12.0 (custom)

Date Public

2021-02-19 00:00

Credits

GiuliCler (Giulia Clerici) Egidio Romano

Show details on NVD website

JSON

To clipboard

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          "dateUpdated": "2024-08-03T19:05:55.707Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://snyk.io/vuln/SNYK-JS-DOCSIFY-1066017"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1076593"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://github.com/docsifyjs/docsify/commit/ff2a66f12752471277fe81a64ad6c4b2c08111fe"
          },
          {
            "name": "20210219 [KIS-2021-02] docsify \u003c= 4.11.6 DOM-based Cross-Site Scripting Vulnerability",
            "tags": [
              "mailing-list",
              "x_refsource_FULLDISC",
              "x_transferred"
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            "url": "http://seclists.org/fulldisclosure/2021/Feb/71"
          },
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              "x_transferred"
            ],
            "url": "http://packetstormsecurity.com/files/161495/docsify-4.11.6-Cross-Site-Scripting.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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          "product": "docsify",
          "vendor": "n/a",
          "versions": [
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              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
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          "lang": "en",
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          "lang": "en",
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        }
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      "descriptions": [
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        }
      ],
      "metrics": [
        {
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            "confidentialityImpact": "HIGH",
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            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "remediationLevel": "UNAVAILABLE",
            "reportConfidence": "CONFIRMED",
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            "temporalScore": 8.1,
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      "references": [
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          "tags": [
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          "url": "https://github.com/docsifyjs/docsify/commit/ff2a66f12752471277fe81a64ad6c4b2c08111fe"
        },
        {
          "name": "20210219 [KIS-2021-02] docsify \u003c= 4.11.6 DOM-based Cross-Site Scripting Vulnerability",
          "tags": [
            "mailing-list",
            "x_refsource_FULLDISC"
          ],
          "url": "http://seclists.org/fulldisclosure/2021/Feb/71"
        },
        {
          "tags": [
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          "url": "http://packetstormsecurity.com/files/161495/docsify-4.11.6-Cross-Site-Scripting.html"
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      "title": "Cross-site Scripting (XSS)",
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          "STATE": "PUBLIC",
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        "credit": [
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            },
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    "datePublished": "2021-02-19T16:35:15.574Z",
    "dateReserved": "2021-01-08T00:00:00.000Z",
    "dateUpdated": "2024-09-16T22:39:56.584Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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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.

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.

Action not permitted

CNVD-2021-14402

CVE-2021-23342 (GCVE-0-2021-23342)

Tags

Sightings

Nomenclature

Related by attack behaviour