CVE-2021-3987 (GCVE-0-2021-3987)

Vulnerability from cvelistv5 – Published: 2024-11-15 10:52 – Updated: 2024-11-15 18:28
VLAI?
Title
Improper Access Control in janeczku/calibre-web
Summary
An improper access control vulnerability exists in janeczku/calibre-web. The affected version allows users without public shelf permissions to create public shelves. The vulnerability is due to the `create_shelf` method in `shelf.py` not verifying if the user has the necessary permissions to create a public shelf. This issue can lead to unauthorized actions being performed by users.
Severity ?
5.4 (Medium)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CWE
  • CWE-284 - Improper Access Control
Assigner
References
Impacted products
Vendor Product Version
janeczku janeczku/calibre-web Affected: unspecified , ≤ latest (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "affected": [
          {
            "cpes": [
              "cpe:2.3:a:calibre-web_project:calibre-web:-:*:*:*:*:*:*:*"
            ],
            "defaultStatus": "unknown",
            "product": "calibre-web",
            "vendor": "calibre-web_project",
            "versions": [
              {
                "lessThan": "*",
                "status": "affected",
                "version": "0",
                "versionType": "custom"
              }
            ]
          }
        ],
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2021-3987",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-11-15T18:27:02.281125Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-11-15T18:28:12.925Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "janeczku/calibre-web",
          "vendor": "janeczku",
          "versions": [
            {
              "lessThanOrEqual": "latest",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "An improper access control vulnerability exists in janeczku/calibre-web. The affected version allows users without public shelf permissions to create public shelves. The vulnerability is due to the `create_shelf` method in `shelf.py` not verifying if the user has the necessary permissions to create a public shelf. This issue can lead to unauthorized actions being performed by users."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
            "version": "3.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-284",
              "description": "CWE-284 Improper Access Control",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-11-15T10:57:09.048Z",
        "orgId": "c09c270a-b464-47c1-9133-acb35b22c19a",
        "shortName": "@huntr_ai"
      },
      "references": [
        {
          "url": "https://huntr.com/bounties/29fcc091-87b6-43bc-ab4b-3c0bec3f71df"
        },
        {
          "url": "https://github.com/janeczku/calibre-web/commit/bcdc97641447965af486964537f3821f47b28874"
        }
      ],
      "source": {
        "advisory": "29fcc091-87b6-43bc-ab4b-3c0bec3f71df",
        "discovery": "EXTERNAL"
      },
      "title": "Improper Access Control in janeczku/calibre-web"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "c09c270a-b464-47c1-9133-acb35b22c19a",
    "assignerShortName": "@huntr_ai",
    "cveId": "CVE-2021-3987",
    "datePublished": "2024-11-15T10:52:29.478Z",
    "dateReserved": "2021-11-20T12:01:47.041Z",
    "dateUpdated": "2024-11-15T18:28:12.925Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "fkie_nvd": {
      "configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:janeczku:calibre-web:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"0.6.15\", \"matchCriteriaId\": \"CB86DF8E-5F67-41CA-B657-D8E0A61CD22A\"}]}]}]",
      "descriptions": "[{\"lang\": \"en\", \"value\": \"An improper access control vulnerability exists in janeczku/calibre-web. The affected version allows users without public shelf permissions to create public shelves. The vulnerability is due to the `create_shelf` method in `shelf.py` not verifying if the user has the necessary permissions to create a public shelf. This issue can lead to unauthorized actions being performed by users.\"}, {\"lang\": \"es\", \"value\": \"Existe una vulnerabilidad de control de acceso indebido en janeczku/calibre-web. La versi\\u00f3n afectada permite a los usuarios sin permisos de estanter\\u00eda p\\u00fablica crear estanter\\u00edas p\\u00fablicas. La vulnerabilidad se debe a que el m\\u00e9todo `create_shelf` en `shelf.py` no verifica si el usuario tiene los permisos necesarios para crear una estanter\\u00eda p\\u00fablica. Este problema puede provocar que los usuarios realicen acciones no autorizadas.\"}]",
      "id": "CVE-2021-3987",
      "lastModified": "2024-11-19T15:44:38.113",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N\", \"baseScore\": 4.3, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"LOW\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 2.8, \"impactScore\": 1.4}], \"cvssMetricV30\": [{\"source\": \"security@huntr.dev\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.0\", \"vectorString\": \"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N\", \"baseScore\": 5.4, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"LOW\", \"integrityImpact\": \"LOW\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 2.8, \"impactScore\": 2.5}]}",
      "published": "2024-11-15T11:15:06.610",
      "references": "[{\"url\": \"https://github.com/janeczku/calibre-web/commit/bcdc97641447965af486964537f3821f47b28874\", \"source\": \"security@huntr.dev\", \"tags\": [\"Patch\"]}, {\"url\": \"https://huntr.com/bounties/29fcc091-87b6-43bc-ab4b-3c0bec3f71df\", \"source\": \"security@huntr.dev\", \"tags\": [\"Exploit\"]}]",
      "sourceIdentifier": "security@huntr.dev",
      "vulnStatus": "Analyzed",
      "weaknesses": "[{\"source\": \"security@huntr.dev\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-284\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-862\"}]}]"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2021-3987\",\"sourceIdentifier\":\"security@huntr.dev\",\"published\":\"2024-11-15T11:15:06.610\",\"lastModified\":\"2024-11-19T15:44:38.113\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"An improper access control vulnerability exists in janeczku/calibre-web. The affected version allows users without public shelf permissions to create public shelves. The vulnerability is due to the `create_shelf` method in `shelf.py` not verifying if the user has the necessary permissions to create a public shelf. This issue can lead to unauthorized actions being performed by users.\"},{\"lang\":\"es\",\"value\":\"Existe una vulnerabilidad de control de acceso indebido en janeczku/calibre-web. La versi\u00f3n afectada permite a los usuarios sin permisos de estanter\u00eda p\u00fablica crear estanter\u00edas p\u00fablicas. La vulnerabilidad se debe a que el m\u00e9todo `create_shelf` en `shelf.py` no verifica si el usuario tiene los permisos necesarios para crear una estanter\u00eda p\u00fablica. Este problema puede provocar que los usuarios realicen acciones no autorizadas.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N\",\"baseScore\":4.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":1.4}],\"cvssMetricV30\":[{\"source\":\"security@huntr.dev\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.0\",\"vectorString\":\"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N\",\"baseScore\":5.4,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"NONE\"},\"exploitabilityScore\":2.8,\"impactScore\":2.5}]},\"weaknesses\":[{\"source\":\"security@huntr.dev\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-284\"}]},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-862\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:janeczku:calibre-web:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"0.6.15\",\"matchCriteriaId\":\"CB86DF8E-5F67-41CA-B657-D8E0A61CD22A\"}]}]}],\"references\":[{\"url\":\"https://github.com/janeczku/calibre-web/commit/bcdc97641447965af486964537f3821f47b28874\",\"source\":\"security@huntr.dev\",\"tags\":[\"Patch\"]},{\"url\":\"https://huntr.com/bounties/29fcc091-87b6-43bc-ab4b-3c0bec3f71df\",\"source\":\"security@huntr.dev\",\"tags\":[\"Exploit\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-3987\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-11-15T18:27:02.281125Z\"}}}], \"affected\": [{\"cpes\": [\"cpe:2.3:a:calibre-web_project:calibre-web:-:*:*:*:*:*:*:*\"], \"vendor\": \"calibre-web_project\", \"product\": \"calibre-web\", \"versions\": [{\"status\": \"affected\", \"version\": \"0\", \"lessThan\": \"*\", \"versionType\": \"custom\"}], \"defaultStatus\": \"unknown\"}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-11-15T18:28:08.988Z\"}}], \"cna\": {\"title\": \"Improper Access Control in janeczku/calibre-web\", \"source\": {\"advisory\": \"29fcc091-87b6-43bc-ab4b-3c0bec3f71df\", \"discovery\": \"EXTERNAL\"}, \"metrics\": [{\"cvssV3_0\": {\"scope\": \"UNCHANGED\", \"version\": \"3.0\", \"baseScore\": 5.4, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N\", \"integrityImpact\": \"LOW\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"LOW\"}}], \"affected\": [{\"vendor\": \"janeczku\", \"product\": \"janeczku/calibre-web\", \"versions\": [{\"status\": \"affected\", \"version\": \"unspecified\", \"versionType\": \"custom\", \"lessThanOrEqual\": \"latest\"}]}], \"references\": [{\"url\": \"https://huntr.com/bounties/29fcc091-87b6-43bc-ab4b-3c0bec3f71df\"}, {\"url\": \"https://github.com/janeczku/calibre-web/commit/bcdc97641447965af486964537f3821f47b28874\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"An improper access control vulnerability exists in janeczku/calibre-web. The affected version allows users without public shelf permissions to create public shelves. The vulnerability is due to the `create_shelf` method in `shelf.py` not verifying if the user has the necessary permissions to create a public shelf. This issue can lead to unauthorized actions being performed by users.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-284\", \"description\": \"CWE-284 Improper Access Control\"}]}], \"providerMetadata\": {\"orgId\": \"c09c270a-b464-47c1-9133-acb35b22c19a\", \"shortName\": \"@huntr_ai\", \"dateUpdated\": \"2024-11-15T10:57:09.048Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-3987\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-11-15T18:28:12.925Z\", \"dateReserved\": \"2021-11-20T12:01:47.041Z\", \"assignerOrgId\": \"c09c270a-b464-47c1-9133-acb35b22c19a\", \"datePublished\": \"2024-11-15T10:52:29.478Z\", \"assignerShortName\": \"@huntr_ai\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.