CVE-2020-28206

An issue was discovered in Bitrix24 Bitrix Framework (1c site management) 20.0. An "User enumeration and Improper Restriction of Excessive Authentication Attempts" vulnerability exists in the admin login form, allowing a remote user to enumerate users in the administrator group. This also allows brute-force attacks on the passwords of users not in the administrator group.

CVSS v3 6.5 MEDIUM
CVSS v2.0 4.0 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

4.0^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:L/Au:S/C:P/I:N/A:N

Exploitability : 8.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
https://justrealstag.medium.com/user-enumeration-improper-restriction-of-excessive-authentication-attempts-in-bitrix-98933a97e0e6	Exploit Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:bitrix24:bitrix_framework:20.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2020-12-02 19:15

Updated : 2023-12-10 13:41

NVD link : CVE-2020-28206

Mitre link : CVE-2020-28206

CVE.ORG link : CVE-2020-28206

JSON object : View

Products Affected

bitrix24

bitrix_framework

CWE

CWE-307

Improper Restriction of Excessive Authentication Attempts

{"id": "CVE-2020-28206", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 4.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N", "authentication": "SINGLE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "acInsufInfo": false, "impactScore": 2.9, "baseSeverity": "MEDIUM", "obtainAllPrivilege": false, "exploitabilityScore": 8.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "published": "2020-12-02T19:15:11.713", "references": [{"url": "https://justrealstag.medium.com/user-enumeration-improper-restriction-of-excessive-authentication-attempts-in-bitrix-98933a97e0e6", "tags": ["Exploit", "Third Party Advisory"], "source": "cve@mitre.org"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-307"}]}], "descriptions": [{"lang": "en", "value": "An issue was discovered in Bitrix24 Bitrix Framework (1c site management) 20.0. An \"User enumeration and Improper Restriction of Excessive Authentication Attempts\" vulnerability exists in the admin login form, allowing a remote user to enumerate users in the administrator group. This also allows brute-force attacks on the passwords of users not in the administrator group."}, {"lang": "es", "value": "Se detect\u00f3 un problema en Bitrix24 Bitrix Framework (administraci\u00f3n de sitio 1c) versi\u00f3n 20.0. Se presenta una vulnerabilidad de tipo \"User enumeration and Improper Restriction of Excessive Authentication Attempts\" en el formulario de inicio de sesi\u00f3n del administrador, permitiendo a un usuario remoto enumerar usuarios en el grupo de administradores. Esto tambi\u00e9n permite ataques de fuerza bruta sobre las contrase\u00f1as de usuarios que no est\u00e1n en el grupo de administradores"}], "lastModified": "2020-12-04T02:31:55.047", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:bitrix24:bitrix_framework:20.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E18D083D-47E8-406D-9D1C-8CE1688130AE"}], "operator": "OR"}]}], "sourceIdentifier": "cve@mitre.org"}