CVE-2020-5222 Hard-Coded Key Used For Remember-me Token in OpenCast

2020-01-3020:50:13

CWE-798

GitHub_M

www.cve.org

6.8 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N

8.5 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

42.8%

JSON

Opencast before 7.6 and 8.1 enables a remember-me cookie based on a hash created from the username, password, and an additional system key. This means that an attacker getting access to a remember-me token for one server can get access to all servers which allow log-in using the same credentials without ever needing the credentials. This problem is fixed in Opencast 7.6 and Opencast 8.1

CNA Affected

[
  {
    "product": "opencast",
    "vendor": "opencast",
    "versions": [
      {
        "status": "affected",
        "version": "< 7.6"
      },
      {
        "status": "affected",
        "version": ">= 8.0, < 8.1"
      }
    ]
  }
]