CVE-2020-29043 - Vulnerability Details - OpenCVE

Description

An issue was discovered in BigBlueButton through 2.2.29. When at attacker is able to view an account_activations/edit?token= URI, the attacker can create an approved user account associated with an email address that has an arbitrary domain name.

Published: 2020-11-26

Score: 7.5 High

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:bigbluebutton:bigbluebutton:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2020-21425	An issue was discovered in BigBlueButton through 2.2.29. When at attacker is able to view an account_activations/edit?token= URI, the attacker can create an approved user account associated with an email address that has an arbitrary domain name.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact Partial

Availability Impact None

This CVE is not in the KEV list.

The EPSS score is 0.00289.

Key SSVC decision points have not yet been added.

References

Link	Providers
http://packetstormsecurity.com/files/160239/BigBlueButton-2.2.29-E-mail-Validation-Bypass.html
https://cxsecurity.com/issue/WLB-2020110211
https://github.com/bigbluebutton/bigbluebutton/releases

History

No history.

Subscriptions

Bigbluebutton Bigbluebutton

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2020-11-26T17:49:43.000Z

Updated: 2024-08-04T16:48:01.544Z

Reserved: 2020-11-24T00:00:00.000Z

Link: CVE-2020-29043

Vulnrichment

No data.

NVD

Status : Modified

Published: 2020-11-26T18:15:10.633

Modified: 2024-11-21T05:23:34.977

Link: CVE-2020-29043

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-200

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in BigBlueButton through 2.2.29. When at attacker is able to view an account_activations/edit?token= URI, the attacker can create an approved user account associated with an email address that has an arbitrary domain name."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2020-11-28T18:06:30.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://github.com/bigbluebutton/bigbluebutton/releases"}, {"tags": ["x_refsource_MISC"], "url": "https://cxsecurity.com/issue/WLB-2020110211"}, {"tags": ["x_refsource_MISC"], "url": "http://packetstormsecurity.com/files/160239/BigBlueButton-2.2.29-E-mail-Validation-Bypass.html"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2020-29043", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "An issue was discovered in BigBlueButton through 2.2.29. When at attacker is able to view an account_activations/edit?token= URI, the attacker can create an approved user account associated with an email address that has an arbitrary domain name."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://github.com/bigbluebutton/bigbluebutton/releases", "refsource": "MISC", "url": "https://github.com/bigbluebutton/bigbluebutton/releases"}, {"name": "https://cxsecurity.com/issue/WLB-2020110211", "refsource": "MISC", "url": "https://cxsecurity.com/issue/WLB-2020110211"}, {"name": "http://packetstormsecurity.com/files/160239/BigBlueButton-2.2.29-E-mail-Validation-Bypass.html", "refsource": "MISC", "url": "http://packetstormsecurity.com/files/160239/BigBlueButton-2.2.29-E-mail-Validation-Bypass.html"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T16:48:01.544Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/bigbluebutton/bigbluebutton/releases"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://cxsecurity.com/issue/WLB-2020110211"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "http://packetstormsecurity.com/files/160239/BigBlueButton-2.2.29-E-mail-Validation-Bypass.html"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2020-29043", "datePublished": "2020-11-26T17:49:43.000Z", "dateReserved": "2020-11-24T00:00:00.000Z", "dateUpdated": "2024-08-04T16:48:01.544Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:bigbluebutton:bigbluebutton:*:*:*:*:*:*:*:*", "matchCriteriaId": "02004AC1-A2BB-4587-B803-24A6B6D4751B", "versionEndIncluding": "2.2.29", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in BigBlueButton through 2.2.29. When at attacker is able to view an account_activations/edit?token= URI, the attacker can create an approved user account associated with an email address that has an arbitrary domain name."}, {"lang": "es", "value": "Se detect\u00f3 un problema en BigBlueButton versiones hasta 2.2.29. Cuando el atacante puede visualizar un URI account_activations/edit?token=, el atacante puede crear una cuenta de usuario aprobada asociada con una direcci\u00f3n de correo electr\u00f3nico que tenga un nombre de dominio arbitrario"}], "id": "CVE-2020-29043", "lastModified": "2024-11-21T05:23:34.977", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.0, "confidentialityImpact": "NONE", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:N/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 2.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.5, "baseSeverity": "HIGH", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-11-26T18:15:10.633", "references": [{"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "http://packetstormsecurity.com/files/160239/BigBlueButton-2.2.29-E-mail-Validation-Bypass.html"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://cxsecurity.com/issue/WLB-2020110211"}, {"source": "cve@mitre.org", "tags": ["Release Notes", "Third Party Advisory"], "url": "https://github.com/bigbluebutton/bigbluebutton/releases"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Third Party Advisory"], "url": "http://packetstormsecurity.com/files/160239/BigBlueButton-2.2.29-E-mail-Validation-Bypass.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://cxsecurity.com/issue/WLB-2020110211"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Release Notes", "Third Party Advisory"], "url": "https://github.com/bigbluebutton/bigbluebutton/releases"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-200"}], "source": "nvd@nist.gov", "type": "Primary"}]}