CVE-2021-39181
CVSS V2 Medium 6.5
CVSS V3 High 8.8
Description
OpenOlat is a web-based learning management system (LMS). Prior to version 15.3.18, 15.5.3, and 16.0.0, using a prepared import XML file (e.g. a course) any class on the Java classpath can be instantiated, including spring AOP bean factories. This can be used to execute code arbitrary code by the attacker. The attack requires an OpenOlat user account with the authoring role. It can not be exploited by unregistered users. The problem is fixed in versions 15.3.18, 15.5.3, and 16.0.0. There are no known workarounds aside from upgrading.
Overview
- CVE ID
- CVE-2021-39181
- Assigner
- security-advisories@github.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-09-01T20:15:07
- Last Modified Date
- 2021-09-10T19:41:00
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:frentix:openolat:*:*:*:*:*:*:*:* | 1 | OR | 15.3.18 | |
| cpe:2.3:a:frentix:openolat:*:*:*:*:*:*:*:* | 1 | OR | 15.5.0 | 15.5.3 |
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:L/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- 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://github.com/OpenOLAT/OpenOLAT/commit/3f219ac457afde82e3be57bc614352ab92c05684 | Patch Third Party Advisory |
| https://jira.openolat.org/browse/OO-5548 | Permissions Required |
| https://github.com/OpenOLAT/OpenOLAT/security/advisories/GHSA-596v-3gwh-2m9w | Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-39181 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-39181 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:06:06 | Added to TrackCVE | |||
| 2022-12-05 09:31:22 | 2021-09-01T20:15Z | 2021-09-01T20:15:07 | CVE Published Date | updated |
| 2022-12-05 09:31:23 | 2021-09-10T19:41:00 | CVE Modified Date | updated | |
| 2022-12-05 09:31:23 | Analyzed | Vulnerability Status | updated |