CVE-2019-3842
Published Apr 9, 2019
Last updated a year ago
Overview
- Description
- In systemd before v242-rc4, it was discovered that pam_systemd does not properly sanitize the environment before using the XDG_SEAT variable. It is possible for an attacker, in some particular configurations, to set a XDG_SEAT environment variable which allows for commands to be checked against polkit policies using the "allow_active" element rather than "allow_any".
- Source
- secalert@redhat.com
- NVD status
- Modified
Social media
- Hype score
- Not currently trending
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 7
- Impact score
- 5.9
- Exploitability score
- 1
- Vector string
- CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- Severity
- HIGH
CVSS 3.0
- Type
- Secondary
- Base score
- 4.5
- Impact score
- 3.4
- Exploitability score
- 1
- Vector string
- CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L
- Severity
- MEDIUM
CVSS 2.0
- Type
- Primary
- Base score
- 4.4
- Impact score
- 6.4
- Exploitability score
- 3.4
- Vector string
- AV:L/AC:M/Au:N/C:P/I:P/A:P
Configurations
[ { "nodes": [ { "negate": false, "cpeMatch": [ { "criteria": "cpe:2.3:a:systemd_project:systemd:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "02E0A07B-34D3-403B-A503-CB11C9203FE9", "versionEndIncluding": "241" }, { "criteria": "cpe:2.3:a:systemd_project:systemd:242:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "3E2ACFB1-6787-47D0-B7F3-CF4F129732A2" }, { "criteria": "cpe:2.3:a:systemd_project:systemd:242:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "22EB9C1F-9101-4AD5-80FD-CB5EA224A13F" }, { "criteria": "cpe:2.3:a:systemd_project:systemd:242:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "9A203307-2242-475A-8ADF-3A1D112655D5" } ], "operator": "OR" } ] }, { "nodes": [ { "negate": false, "cpeMatch": [ { "criteria": "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "142AD0DD-4CF3-4D74-9442-459CE3347E3A" } ], "operator": "OR" } ] }, { "nodes": [ { "negate": false, "cpeMatch": [ { "criteria": "cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "97A4B8DF-58DA-4AB6-A1F9-331B36409BA3" } ], "operator": "OR" } ] }, { "nodes": [ { "negate": false, "cpeMatch": [ { "criteria": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43" } ], "operator": "OR" } ] } ]