CVE-2021-27927
CVSS V2 Medium 6.8
CVSS V3 High 8.8
Description
In Zabbix from 4.0.x before 4.0.28rc1, 5.0.0alpha1 before 5.0.10rc1, 5.2.x before 5.2.6rc1, and 5.4.0alpha1 before 5.4.0beta2, the CControllerAuthenticationUpdate controller lacks a CSRF protection mechanism. The code inside this controller calls diableSIDValidation inside the init() method. An attacker doesn't have to know Zabbix user login credentials, but has to know the correct Zabbix URL and contact information of an existing user with sufficient privileges.
Overview
- CVE ID
- CVE-2021-27927
- Assigner
- cve@mitre.org
- Vulnerability Status
- Modified
- Published Version
- 2021-03-03T17:15:12
- Last Modified Date
- 2023-04-12T16:15:10
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:* | 1 | OR | 4.0.0 | 4.0.27 |
| cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:* | 1 | OR | 5.0.0 | 5.0.9 |
| cpe:2.3:a:zabbix:zabbix:*:*:*:*:*:*:*:* | 1 | OR | 5.2.0 | 5.2.3 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 6.8
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 8.8
- Base Severity
- HIGH
- Exploitability Score
- 2.8
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://lists.debian.org/debian-lts-announce/2023/04/msg00013.html | |
| https://support.zabbix.com/browse/ZBX-18942 | Issue Tracking Patch Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-27927 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27927 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:26:36 | Added to TrackCVE | |||
| 2022-12-05 23:04:00 | 2021-03-03T17:15Z | 2021-03-03T17:15:12 | CVE Published Date | updated |
| 2022-12-05 23:04:00 | 2022-04-26T14:01:18 | CVE Modified Date | updated | |
| 2022-12-05 23:04:00 | Analyzed | Vulnerability Status | updated | |
| 2023-04-12 23:12:42 | 2023-04-12T16:15:10 | CVE Modified Date | updated | |
| 2023-04-12 23:12:42 | Analyzed | Modified | Vulnerability Status | updated |
| 2023-04-12 23:12:42 | References | updated |