HIGH
systemd: systemd creates world-writable suid files allowing root privilege escalation
Published Jan 23, 2017
7.8
HIGHCVSS 3.0
EPSS 1.22%
Description
A flaw in systemd v228 in /src/basic/fs-util.c caused world writable suid files to be created when using the systemd timers features, allowing local attackers to escalate their privileges to root. This is fixed in v229.
Affected products
No data.
- 228
No data.
Red Hat Enterprise Linux 7
systemd
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | systemd | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
7.8 HIGH NVD
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact High
Availability Impact High
7.2 HIGH NVD
AV:L/AC:L/Au:N/C:C/I:C/A:C
Access Vector Local
Access Complexity Low
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.22% 0.01223
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01223
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.22% (0.01223) | 67.68th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.21% (0.01213) | 64.43th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.75% (0.00750) | 70.82th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.10% (0.02104) | 73.44th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.75% (0.00750) | 71.41th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00044) | 15.06th | v3 (v2023.03.01) |
| May 27, 2024 | 0.04% (0.00044) | 12.76th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00044) | 10.75th | v3 (v2023.03.01) |
| Mar 6, 2023 | 2.11% (0.02115) | 80.01th | v2 (v2022.01.01) |
| Apr 1, 2022 | 2.11% (0.02115) | 78.09th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.11% (0.02115) | 56.78th | v2 (v2022.01.01) |
Weaknesses (2)
References (10)
- http://www.securityfocus.com/bid/95790 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1037686 vdb-entryx_refsource_SECTRACK
- https://access.redhat.com/security/cve/CVE-2016-10156 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1416044 Issue Tracking
- https://bugzilla.suse.com/show_bug.cgi?id=1020601 x_refsource_MISCIssue Tracking
- https://github.com/systemd/systemd/commit/06eeacb6fe029804f296b065b3ce91e796e1cd0e x_refsource_MISCIssue TrackingPatchThird Party Advisory
- https://github.com/systemd/systemd/commit/ee735086f8670be1591fa9593e80dd60163a7a2f x_refsource_MISCIssue TrackingPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2016-10156
- https://www.cve.org/CVERecord?id=CVE-2016-10156
- https://www.exploit-db.com/exploits/41171/ exploitx_refsource_EXPLOIT-DB
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/95790 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1037686 | vdb-entryx_refsource_SECTRACK | |
| https://access.redhat.com/security/cve/CVE-2016-10156 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1416044 | Issue Tracking | |
| https://bugzilla.suse.com/show_bug.cgi?id=1020601 | x_refsource_MISCIssue Tracking | |
| https://github.com/systemd/systemd/commit/06eeacb6fe029804f296b065b3ce91e796e1cd0e | x_refsource_MISCIssue TrackingPatchThird Party Advisory | |
| https://github.com/systemd/systemd/commit/ee735086f8670be1591fa9593e80dd60163a7a2f | x_refsource_MISCIssue TrackingPatchThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2016-10156 | ||
| https://www.cve.org/CVERecord?id=CVE-2016-10156 | ||
| https://www.exploit-db.com/exploits/41171/ | exploitx_refsource_EXPLOIT-DB |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Jan 23, 2017
Updated Aug 6, 2024
Reserved Jan 22, 2017
Link CVE-2016-10156
CISA Vulnrichment
Updated n/a