CVE-2018-10809 — In 2345 Security Guard 3

In 2345 Security Guard 3.7, the driver file (2345NetFirewall.sys) allows local users to cause a denial of service (BSOD) or possibly have unspecified other impact because of not validating input values from IOCtl 0x00222040. NOTE: this vulnerability exists because of an incomplet

01What is this vulnerability?

In 2345 Security Guard 3.7, the driver file (2345NetFirewall.sys) allows local users to cause a denial of service (BSOD) or possibly have unspecified other impact because of not validating input values from IOCtl 0x00222040. NOTE: this vulnerability exists because of an incomplete fix for CVE-2018-8873.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

08Timeline

• Published: 2018-05-08T07:00:00.000Z
• Last modified: 2024-08-05T07:46:47.458Z

09References

• www.exploit-db.com — https://www.exploit-db.com/exploits/44600/
• packetstormsecurity.com — http://packetstormsecurity.com/files/147538/2345-Security-Guard-3.7-Denial-Of-Se…
• github.com — https://github.com/anhkgg/poc/tree/master/2345%20security%20guard/2345NetFirewal…