VulnerabilityModified
CVE-2018-3969
An exploitable vulnerability exists in the verified boot protection of the CUJO Smart Firewall.
HIGH 7.8EPSS 0.50%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.50%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.50% probability · 41th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-78
- Affected
- getcujo/smart firewall
- Source
- talos-cna@cisco.com
References
- https://talosintelligence.com/vulnerability_reports/TALOS-2018-0634Exploit, Third Party Advisory
- https://talosintelligence.com/vulnerability_reports/TALOS-2018-0634Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.