CVE-2021-29439
CVSS V2 Medium 6.5
CVSS V3 High 7.2
Description
The Grav admin plugin prior to version 1.10.11 does not correctly verify caller's privileges. As a consequence, users with the permission `admin.login` can install third-party plugins and their dependencies. By installing the right plugin, an attacker can obtain an arbitrary code execution primitive and elevate their privileges on the instance. The vulnerability has been addressed in version 1.10.11. As a mitigation blocking access to the `/admin` path from untrusted sources will reduce the probability of exploitation.
Overview
- CVE ID
- CVE-2021-29439
- Assigner
- security-advisories@github.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-04-13T20:15:22
- Last Modified Date
- 2022-12-13T16:39:31
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:getgrav:grav_admin:*:*:*:*:*:*:*:* | 1 | OR | 1.10.11 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:S/C:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- SINGLE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 6.5
- Severity
- MEDIUM
- Exploitability Score
- 8
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- HIGH
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 7.2
- Base Severity
- HIGH
- Exploitability Score
- 1.2
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://blog.sonarsource.com/grav-cms-code-execution-vulnerabilities | |
| https://github.com/getgrav/grav-plugin-admin/security/advisories/GHSA-wg37-cf5x-55hq | Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-29439 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-29439 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:15:28 | Added to TrackCVE | |||
| 2022-12-06 01:52:41 | 2021-04-13T20:15Z | 2021-04-13T20:15:22 | CVE Published Date | updated |
| 2022-12-06 01:52:41 | 2022-08-02T16:15:08 | CVE Modified Date | updated | |
| 2022-12-06 01:52:41 | Undergoing Analysis | Vulnerability Status | updated | |
| 2022-12-06 01:52:45 | References | updated | ||
| 2022-12-13 17:13:13 | 2022-12-13T16:39:31 | CVE Modified Date | updated | |
| 2022-12-13 17:13:13 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |