CVE-2020-5206

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Source
https://cve.org/CVERecord?id=CVE-2020-5206
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-5206.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-5206
Aliases
Related
Published
2020-01-30T22:15:10.093Z
Modified
2026-04-11T13:53:18.836385Z
Severity
  • 10.0 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N CVSS Calculator
Summary
[none]
Details

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

References

Affected packages

Git / github.com/opencast/opencast

Affected ranges

Type
GIT
Repo
https://github.com/opencast/opencast
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
6241ba154a6b364fea1928e52f8bf2a432934dc8
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
5bb6a93a43a7f7c47f789e46e4018c80b8c54c8b
Fixed
b157e1fb3b35991ca7bf59f0730329fbe7ce82e8
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "fixed": "7.6"
        },
        {
            "introduced": "0"
        },
        {
            "last_affected": "8.0"
        }
    ]
}

Affected versions

8.*
8.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-5206.json"
vanir_signatures_modified 
"2026-04-11T13:53:18Z"
vanir_signatures 
[
    {
        "signature_version": "v1",
        "signature_type": "Function",
        "source": "https://github.com/opencast/opencast/commit/b157e1fb3b35991ca7bf59f0730329fbe7ce82e8",
        "digest": {
            "function_hash": "167346135946564669046519915409421511479",
            "length": 1295.0
        },
        "id": "CVE-2020-5206-512cd126",
        "deprecated": false,
        "target": {
            "file": "modules/kernel/src/main/java/org/opencastproject/kernel/security/SecurityServiceSpringImpl.java",
            "function": "getUser"
        }
    },
    {
        "signature_version": "v1",
        "signature_type": "Line",
        "source": "https://github.com/opencast/opencast/commit/b157e1fb3b35991ca7bf59f0730329fbe7ce82e8",
        "digest": {
            "threshold": 0.9,
            "line_hashes": [
                "75734271569501890742707772433482178339",
                "9449146567902022179387120400375231962",
                "26497533256406873041303374309956159704",
                "297316715959913770141208720028423518536",
                "297606026605268180059405808325019465599",
                "243848335991179446238398700925076172114",
                "314978509694484350818193829998104722191",
                "273497479687732357750155179060993310467",
                "93061623914477109868448453301859978307",
                "54237984380871022123563447646474255136",
                "56758462960864214513846614017296084741",
                "68713570741423335150937093381461604945",
                "248133498536070940049255215164087235288",
                "71363555222591940687754051745369406245",
                "198617838609609575598291077525213931328",
                "3983025312276577579023255530653434805",
                "45953953377927039865200941334146225818",
                "231150002775214218949467454066609038781",
                "162997854360279914929087427543946226373",
                "257579352272766048081902690901959992461",
                "91585432208515058336699489430221841564",
                "56845993912443392280357661555440288217",
                "144535471280545180173825053350102738412",
                "328874135712492332490705915419693968116",
                "68416579223047458720870837242649533353",
                "33895084022467220835259949710458856719"
            ]
        },
        "id": "CVE-2020-5206-cb4ea6e9",
        "deprecated": false,
        "target": {
            "file": "modules/kernel/src/main/java/org/opencastproject/kernel/security/SecurityServiceSpringImpl.java"
        }
    }
]