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cveGitHub_MCVE-2020-5222
HistoryJan 30, 2020 - 9:15 p.m.

CVE-2020-5222

2020-01-3021:15:14
CWE-798
GitHub_M
web.nvd.nist.gov
72
opencast
cve-2020-5222
security vulnerability
remember-me cookie
access control

CVSS2

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.4

Confidence

High

EPSS

0.001

Percentile

42.8%

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

Affected configurations

Nvd
Vulners
Node
apereoopencastRange<7.6
OR
apereoopencastMatch8.0
VendorProductVersionCPE
apereoopencast*cpe:2.3:a:apereo:opencast:*:*:*:*:*:*:*:*
apereoopencast8.0cpe:2.3:a:apereo:opencast:8.0:*:*:*:*:*:*:*

CNA Affected

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

CVSS2

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.4

Confidence

High

EPSS

0.001

Percentile

42.8%