CVE-2020-5206
CVSS V2 Medium 6.4
CVSS V3 Critical 10
Description
In Opencast before 7.6 and 8.1, using a remember-me cookie with an arbitrary username can cause Opencast to assume proper authentication for that user even if the remember-me cookie was incorrect given that the attacked endpoint also allows anonymous access. This way, an attacker can, for example, fake a remember-me token, assume the identity of the global system administrator and request non-public content from the search service without ever providing any proper authentication. This problem is fixed in Opencast 7.6 and Opencast 8.1
Overview
- CVE ID
- CVE-2020-5206
- Assigner
- security-advisories@github.com
- Vulnerability Status
- Analyzed
- Published Version
- 2020-01-30T22:15:10
- Last Modified Date
- 2020-02-05T18:30:49
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:apereo:opencast:*:*:*:*:*:*:*:* | 1 | OR | 7.6 | |
| cpe:2.3:a:apereo:opencast:8.0:*:*:*:*:*:*:* | 1 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:N/C:P/I:P/A:N
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- NONE
- Base Score
- 6.4
- Severity
- MEDIUM
- Exploitability Score
- 10
- Impact Score
- 4.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- CHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 10
- Base Severity
- CRITICAL
- Exploitability Score
- 3.9
- Impact Score
- 5.8
References
| Reference URL | Reference Tags |
|---|---|
| https://github.com/opencast/opencast/commit/b157e1fb3b35991ca7bf59f0730329fbe7ce82e8 | Patch |
| https://github.com/opencast/opencast/security/advisories/GHSA-vmm6-w4cf-7f3x | Mitigation Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-5206 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-5206 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:51:01 | Added to TrackCVE | |||
| 2022-12-04 10:29:06 | 2020-01-30T22:15Z | 2020-01-30T22:15:10 | CVE Published Date | updated |
| 2022-12-04 10:29:06 | 2020-02-05T18:30:49 | CVE Modified Date | updated | |
| 2022-12-04 10:29:06 | Analyzed | Vulnerability Status | updated |