Executive Summary

Informations
Name CVE-2020-5206 First vendor Publication 2020-01-30
Vendor Cve Last vendor Modification 2024-11-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
Overall CVSS Score 10
Base Score 10 Environmental Score 10
impact SubScore 5.8 Temporal Score 10
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Changed Confidentiality Impact High
Integrity Impact High Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:N)
Cvss Base Score 6.4 Attack Range Network
Cvss Impact Score 4.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

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

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-5206

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-287 Improper Authentication

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 2

Sources (Detail)

https://github.com/opencast/opencast/commit/b157e1fb3b35991ca7bf59f0730329fbe...
https://github.com/opencast/opencast/security/advisories/GHSA-vmm6-w4cf-7f3x
Source Url

Alert History

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Date Informations
2024-11-28 13:45:57
  • Multiple Updates
2021-05-04 13:54:12
  • Multiple Updates
2021-04-22 03:04:29
  • Multiple Updates
2020-05-23 02:36:58
  • First insertion