8.2high
CVE-2018-3969
An exploitable vulnerability exists in the verified boot protection of the CUJO Smart Firewall.
Published 7 y ago · modified 4 mo ago · JSON
CVSS
8.2
v3.0 · CNA
CISA KEV
No
not known exploited
EPSS
0.5%
percentile 43%
Public exploits
0
none known
Summary
An exploitable vulnerability exists in the verified boot protection of the CUJO Smart Firewall. It is possible to add arbitrary shell commands into the dhcpd.conf file, that persist across reboots and firmware updates, and thus allow for executing unverified commands. To trigger this vulnerability, a local attacker needs to be able to write into /config/dhcpd.conf.
Exploit prediction (EPSS)
0.50% probability of exploitation in the next 30 days, higher than 43% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| CNA | 3.0 | 8.2 | CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H |
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.0 | 8.2 | CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H |
| NVD | 2.0 | 7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
Affected products
- n/a CUJO
Classification
- Weakness
- CWE-78 Improper Neutralization of Special Elements used in an OS Command
References
- talosintelligence.com /vulnerability_reports/TALOS-2018-0634 · x_refsource_MISC, x_transferred
Sources
- CVE List: CVE-2018-3969
- NVD: CVE-2018-3969
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