CVE-2017-20002

Source
https://cve.org/CVERecord?id=CVE-2017-20002
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-20002.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2017-20002
Downstream
Published
2021-03-17T06:15:12.107Z
Modified
2026-07-08T05:50:24.221285169Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

The Debian shadow package before 1:4.5-1 for Shadow incorrectly lists pts/0 and pts/1 as physical terminals in /etc/securetty. This allows local users to login as password-less users even if they are connected by non-physical means such as SSH (hence bypassing PAM's nullok_secure configuration). This notably affects environments such as virtual machines automatically generated with a default blank root password, allowing all local users to escalate privileges.

Database specific
{
    "unresolved_ranges": [
        {
            "source": "CPE_STRING",
            "cpes": [
                "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "vendor_product": "debian:debian_linux",
            "extracted_events": [
                {
                    "introduced": "9.0"
                },
                {
                    "last_affected": "9.0"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/shadow-maint/shadow

Affected ranges

Type
GIT
Repo
https://github.com/shadow-maint/shadow
Events
Database specific
{
    "cpe": "cpe:2.3:a:debian:shadow:4.4:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "4.4"
        },
        {
            "last_affected": "4.4"
        }
    ],
    "source": "CPE_STRING"
}

Affected versions

4.*
4.4

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-20002.json"