certfr_avis - CERTFR-2021-AVI-677

CERTFR-2021-AVI-677

Vulnerability from certfr_avis - Published: - Updated:

De multiples vulnérabilités ont été découvertes dans Atlassian Confluence Server et Data Center. Elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance et une atteinte à la confidentialité des données.

La vulnérabilité CVE-2021-26084 est activement exploitée. De plus, des codes d'exploitation sont disponibles publiquement sur Internet.

Solution

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

None

Impacted products

Vendor	Product	Description
Atlassian	Confluence	Atlassian Confluence Server et Data Center versions 7.12.x antérieures à 7.12.5
Atlassian	Confluence	Atlassian Confluence Server et Data Center versions antérieures à 6.13.23
Atlassian	Confluence	Atlassian Confluence Server et Data Center versions 7.5.x à 7.11.x antérieures à 7.11.6
Atlassian	Confluence	Atlassian Confluence Server et Data Center versions 6.14.x à 7.4.x antérieures à 7.4.11

References

Title

Publication Time

Tags

Bulletin de sécurité Atlassian CVE-2021-26084 du 25 août 2021	None	vendor-advisory
Bulletin de sécurité Atlassian CONFSERVER-67893 du 29 juillet 2021	None	vendor-advisory

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JSON

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{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "Atlassian Confluence Server et Data Center versions 7.12.x ant\u00e9rieures \u00e0 7.12.5",
      "product": {
        "name": "Confluence",
        "vendor": {
          "name": "Atlassian",
          "scada": false
        }
      }
    },
    {
      "description": "Atlassian Confluence Server et Data Center versions ant\u00e9rieures \u00e0 6.13.23",
      "product": {
        "name": "Confluence",
        "vendor": {
          "name": "Atlassian",
          "scada": false
        }
      }
    },
    {
      "description": "Atlassian Confluence Server et Data Center versions 7.5.x \u00e0 7.11.x ant\u00e9rieures \u00e0 7.11.6",
      "product": {
        "name": "Confluence",
        "vendor": {
          "name": "Atlassian",
          "scada": false
        }
      }
    },
    {
      "description": "Atlassian Confluence Server et Data Center versions 6.14.x \u00e0 7.4.x ant\u00e9rieures \u00e0 7.4.11",
      "product": {
        "name": "Confluence",
        "vendor": {
          "name": "Atlassian",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": null,
  "content": "## Solution\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des\ncorrectifs (cf. section Documentation).\n",
  "cves": [
    {
      "name": "CVE-2021-26084",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-26084"
    },
    {
      "name": "CVE-2021-26085",
      "url": "https://www.cve.org/CVERecord?id=CVE-2021-26085"
    }
  ],
  "links": [],
  "reference": "CERTFR-2021-AVI-677",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2021-09-06T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
    },
    {
      "description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
    }
  ],
  "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans Atlassian\nConfluence Server et Data Center. Elles permettent \u00e0 un attaquant de\nprovoquer une ex\u00e9cution de code arbitraire \u00e0 distance et une atteinte \u00e0\nla confidentialit\u00e9 des donn\u00e9es.\n\nLa vuln\u00e9rabilit\u00e9 CVE-2021-26084 est activement exploit\u00e9e. De plus, des\ncodes d\u0027exploitation sont disponibles publiquement sur Internet.\n",
  "title": "Multiples vuln\u00e9rabilit\u00e9s dans Atlassian Confluence Server et Data Center",
  "vendor_advisories": [
    {
      "published_at": null,
      "title": "Bulletin de s\u00e9curit\u00e9 Atlassian CVE-2021-26084 du 25 ao\u00fbt 2021",
      "url": "https://confluence.atlassian.com/doc/confluence-security-advisory-2021-08-25-1077906215.html"
    },
    {
      "published_at": null,
      "title": "Bulletin de s\u00e9curit\u00e9 Atlassian CONFSERVER-67893 du 29 juillet 2021",
      "url": "https://jira.atlassian.com/browse/CONFSERVER-67893"
    }
  ]
}

CVE-2021-26084 (GCVE-0-2021-26084)

Vulnerability from cvelistv5 – Published: 2021-08-30 06:30 – Updated: 2025-10-21 23:25

Summary

In affected versions of Confluence Server and Data Center, an OGNL injection vulnerability exists that would allow an unauthenticated attacker to execute arbitrary code on a Confluence Server or Data Center instance. The affected versions are before version 6.13.23, from version 6.14.0 before 7.4.11, from version 7.5.0 before 7.11.6, and from version 7.12.0 before 7.12.5.

Severity ?

9.8 (Critical)


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

CWE

Remote Code Execution

Assigner

atlassian

References

URL

Tags

	https://jira.atlassian.com/browse/CONFSERVER-67940	x_refsource_MISC
	http://packetstormsecurity.com/files/167449/Atlas…	x_refsource_MISC

Impacted products

Vendor

Product

Version

Atlassian

Confluence Server

Affected: unspecified , < 6.13.23 (custom)
Affected: 6.14.0 , < unspecified (custom)
Affected: unspecified , < 7.4.11 (custom)
Affected: 7.5.0 , < unspecified (custom)
Affected: unspecified , < 7.11.6 (custom)
Affected: 7.12.0 , < unspecified (custom)
Affected: unspecified , < 7.12.5 (custom)

Atlassian

Confluence Data Center

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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        ],
        "title": "CVE Program Container"
      },
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        "metrics": [
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              "attackVector": "NETWORK",
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              "confidentialityImpact": "HIGH",
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        ],
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                "lang": "en",
                "type": "CWE"
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          "versions": [
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        },
        {
          "product": "Confluence Data Center",
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      ],
      "datePublic": "2021-08-10T00:00:00.000Z",
      "descriptions": [
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          "lang": "en",
          "value": "In affected versions of Confluence Server and Data Center, an OGNL injection vulnerability exists that would allow an unauthenticated attacker to execute arbitrary code on a Confluence Server or Data Center instance. The affected versions are before version 6.13.23, from version 6.14.0 before 7.4.11, from version 7.5.0 before 7.11.6, and from version 7.12.0 before 7.12.5."
        }
      ],
      "problemTypes": [
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              "type": "text"
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        "orgId": "f08a6ab8-ed46-4c22-8884-d911ccfe3c66",
        "shortName": "atlassian"
      },
      "references": [
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          ],
          "url": "https://jira.atlassian.com/browse/CONFSERVER-67940"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://packetstormsecurity.com/files/167449/Atlassian-Confluence-Namespace-OGNL-Injection.html"
        }
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          "ID": "CVE-2021-26084",
          "STATE": "PUBLIC"
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        "affects": {
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                      "version": {
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CVE-2021-26085 (GCVE-0-2021-26085)

Vulnerability from cvelistv5 – Published: 2021-08-03 00:00 – Updated: 2025-10-21 23:25

Summary

Affected versions of Atlassian Confluence Server allow remote attackers to view restricted resources via a Pre-Authorization Arbitrary File Read vulnerability in the /s/ endpoint. The affected versions are before version 7.4.10, and from version 7.5.0 before 7.12.3.

Severity ?

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CWE

Pre-Authorization Arbitrary File Read

Assigner

atlassian

References

URL

Tags

	https://jira.atlassian.com/browse/CONFSERVER-67893	x_refsource_MISC
	http://packetstormsecurity.com/files/164401/Atlas…	x_refsource_MISC

Impacted products

Vendor

Product

Version

Atlassian

Confluence Server

Affected: unspecified , < 7.4.10 (custom)
Affected: 7.5.0 , < unspecified (custom)
Affected: unspecified , < 7.12.3 (custom)

Atlassian

Confluence Data Center

Affected: unspecified , < 7.4.10 (custom)
Affected: 7.5.0 , < unspecified (custom)
Affected: unspecified , < 7.12.3 (custom)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T20:19:19.799Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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            "url": "https://jira.atlassian.com/browse/CONFSERVER-67893"
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            "tags": [
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            "url": "http://packetstormsecurity.com/files/164401/Atlassian-Confluence-Server-7.5.1-Arbitrary-File-Read.html"
          }
        ],
        "title": "CVE Program Container"
      },
      {
        "metrics": [
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              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
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              "content": {
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        ],
        "title": "CISA ADP Vulnrichment"
      }
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      ],
      "datePublic": "2021-07-29T00:00:00.000Z",
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        }
      ],
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              "description": "Pre-Authorization Arbitrary File Read",
              "lang": "en",
              "type": "text"
            }
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        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-10-05T16:06:18.000Z",
        "orgId": "f08a6ab8-ed46-4c22-8884-d911ccfe3c66",
        "shortName": "atlassian"
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        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "http://packetstormsecurity.com/files/164401/Atlassian-Confluence-Server-7.5.1-Arbitrary-File-Read.html"
        }
      ],
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security@atlassian.com",
          "DATE_PUBLIC": "2021-07-29T00:00:00",
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        "affects": {
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                      "product_name": "Confluence Server",
                      "version": {
                        "version_data": [
                          {
                            "version_affected": "\u003c",
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                            "version_affected": "\u003e=",
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                    },
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}

Tags

Taxonomy of the tags.

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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

CERTFR-2021-AVI-677

Solution

CVE-2021-26084 (GCVE-0-2021-26084)

CVE-2021-26085 (GCVE-0-2021-26085)

Tags

Sightings

Nomenclature