Vulnerability-Lookup

CNVD-2021-34724

Vulnerability from cnvd - Published: 2021-05-16

Title

KonaWiki文件上传漏洞

Description

KonaWiki是一款轻量级Wiki系统。该系统主要用于编写手稿、保留会议记录和备忘录等。 KonaWiki2 2.2.4版本之前存在文件上传漏洞。该漏洞源于程序文件上载期间对文件的验证不足，远程攻击者可以上传恶意文件并在服务器上执行该漏洞。

Severity

高

Patch Name

KonaWiki文件上传漏洞的补丁

Patch Description

KonaWiki是一款轻量级Wiki系统。该系统主要用于编写手稿、保留会议记录和备忘录等。 KonaWiki2 2.2.4版本之前存在文件上传漏洞。该漏洞源于程序文件上载期间对文件的验证不足，远程攻击者可以上传恶意文件并在服务器上执行该漏洞。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

厂商已发布了漏洞修复程序，请及时关注更新： https://kujirahand.com/konawiki/

Reference

https://www.cybersecurity-help.cz/vdb/SB2021051301

Impacted products

Name
KonaWiki KonaWiki2 <2.2.4

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-20721",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-20721"
    }
  },
  "description": "KonaWiki\u662f\u4e00\u6b3e\u8f7b\u91cf\u7ea7Wiki\u7cfb\u7edf\u3002\u8be5\u7cfb\u7edf\u4e3b\u8981\u7528\u4e8e\u7f16\u5199\u624b\u7a3f\u3001\u4fdd\u7559\u4f1a\u8bae\u8bb0\u5f55\u548c\u5907\u5fd8\u5f55\u7b49\u3002\n\nKonaWiki2 2.2.4\u7248\u672c\u4e4b\u524d\u5b58\u5728\u6587\u4ef6\u4e0a\u4f20\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u6587\u4ef6\u4e0a\u8f7d\u671f\u95f4\u5bf9\u6587\u4ef6\u7684\u9a8c\u8bc1\u4e0d\u8db3\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u4ee5\u4e0a\u4f20\u6076\u610f\u6587\u4ef6\u5e76\u5728\u670d\u52a1\u5668\u4e0a\u6267\u884c\u8be5\u6f0f\u6d1e\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://kujirahand.com/konawiki/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-34724",
  "openTime": "2021-05-16",
  "patchDescription": "KonaWiki\u662f\u4e00\u6b3e\u8f7b\u91cf\u7ea7Wiki\u7cfb\u7edf\u3002\u8be5\u7cfb\u7edf\u4e3b\u8981\u7528\u4e8e\u7f16\u5199\u624b\u7a3f\u3001\u4fdd\u7559\u4f1a\u8bae\u8bb0\u5f55\u548c\u5907\u5fd8\u5f55\u7b49\u3002\r\n\r\nKonaWiki2 2.2.4\u7248\u672c\u4e4b\u524d\u5b58\u5728\u6587\u4ef6\u4e0a\u4f20\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u6587\u4ef6\u4e0a\u8f7d\u671f\u95f4\u5bf9\u6587\u4ef6\u7684\u9a8c\u8bc1\u4e0d\u8db3\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u4ee5\u4e0a\u4f20\u6076\u610f\u6587\u4ef6\u5e76\u5728\u670d\u52a1\u5668\u4e0a\u6267\u884c\u8be5\u6f0f\u6d1e\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": "KonaWiki\u6587\u4ef6\u4e0a\u4f20\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "KonaWiki KonaWiki2 \u003c2.2.4"
  },
  "referenceLink": "https://www.cybersecurity-help.cz/vdb/SB2021051301",
  "serverity": "\u9ad8",
  "submitTime": "2021-05-14",
  "title": "KonaWiki\u6587\u4ef6\u4e0a\u4f20\u6f0f\u6d1e"
}

CVE-2021-20721 (GCVE-0-2021-20721)

Vulnerability from cvelistv5 – Published: 2021-05-20 01:15 – Updated: 2024-08-03 17:53

Summary

KonaWiki2 versions prior to 2.2.4 allows a remote attacker to upload arbitrary files via unspecified vectors. If the file contains PHP scripts, arbitrary code may be executed.

Severity

No CVSS data available.

CWE

Unrestricted upload of file with dangerous type

Assigner

jpcert CNA under the jpcert root

CNA scorecard C 64/100 over 186 records in the last 180 days details

References

2 references

URL	Tags
https://kujirahand.com/konawiki/	x_refsource_MISC
https://jvn.jp/en/jp/JVN34232719/index.html	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
kujirahand	KonaWiki2	Affected: versions prior to 2.2.4

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T17:53:21.815Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://kujirahand.com/konawiki/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://jvn.jp/en/jp/JVN34232719/index.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "KonaWiki2",
          "vendor": "kujirahand",
          "versions": [
            {
              "status": "affected",
              "version": "versions prior to 2.2.4"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "KonaWiki2 versions prior to 2.2.4 allows a remote attacker to upload arbitrary files via unspecified vectors. If the file contains PHP scripts, arbitrary code may be executed."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Unrestricted upload of file with dangerous type",
              "lang": "en",
              "type": "text"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-05-20T01:15:23.000Z",
        "orgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
        "shortName": "jpcert"
      },
      "references": [
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://kujirahand.com/konawiki/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://jvn.jp/en/jp/JVN34232719/index.html"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "vultures@jpcert.or.jp",
          "ID": "CVE-2021-20721",
          "STATE": "PUBLIC"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "KonaWiki2",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "versions prior to 2.2.4"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "kujirahand"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "KonaWiki2 versions prior to 2.2.4 allows a remote attacker to upload arbitrary files via unspecified vectors. If the file contains PHP scripts, arbitrary code may be executed."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "Unrestricted upload of file with dangerous type"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://kujirahand.com/konawiki/",
              "refsource": "MISC",
              "url": "https://kujirahand.com/konawiki/"
            },
            {
              "name": "https://jvn.jp/en/jp/JVN34232719/index.html",
              "refsource": "MISC",
              "url": "https://jvn.jp/en/jp/JVN34232719/index.html"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
    "assignerShortName": "jpcert",
    "cveId": "CVE-2021-20721",
    "datePublished": "2021-05-20T01:15:23.000Z",
    "dateReserved": "2020-12-17T00:00:00.000Z",
    "dateUpdated": "2024-08-03T17:53:21.815Z",
    "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.

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-2021-34724

CVE-2021-20721 (GCVE-0-2021-20721)

Tags

Sightings

Nomenclature

Related by attack behaviour