TI-2018-02937 Aliases CVE-2018-3969 GHSA-q2x2-24ph-2wxf

OS command injection in CUJO

LOW 35CWE-78Published 2019-03-21 · Updated 2024-08-05

Key facts

Attack vector: Local
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-78.

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.

Why it matters now

EPSS 0.00501 43rd percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	CUJO	CUJO Smart Firewall - Firmware version 7003	—	No fix listed	CNA

CUJO Vendor— Affected CUJO Smart Firewall - Firmware version 7003 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:getcujo:smart_firewall:7003:::::::*	7003	Vulnerable	Getcujo

cpe:2.3:a:getcujo:smart_firewall:7003:*:*:*:*:*:*:* Versions 7003 Vulnerable ·Getcujo

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2018-3969
2026-10-03 Alias added: GHSA-q2x2-24ph-2wxf

References

Exploit 1

https://talosintelligence.com/vulnerability_reports/TALOS-2018-0634

TI-2018-02999 Code injection in CUJO CVSS 3.1CRITICAL 10.0
TI-2018-02971 Out-of-bounds write in CUJO CVSS 3.1CRITICAL 9.8
TI-2018-02953 Double free in CUJO CVSS 3.1CRITICAL 9.8
TI-2018-02931 Command injection in CUJO CVSS 3.1HIGH 8.0
TI-2018-02979 Integer underflow in CUJO CVSS 3.1HIGH 7.5
TI-2018-02998 An exploitable vulnerability exists the safe browsing function of the CUJO Smart… CVSS 3.1HIGH 7.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences