CVE-2018-5273 — HIGH (7.8) — White Hats Nepal

Vulnerability Description

In Malwarebytes Premium 3.3.1.2183, the driver file (FARFLT.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 0x9c40e014. NOTE: the vendor reported that they "have not been able to reproduce the issue on any Windows operating system version (32-bit or 64-bit).

CVSS Score

7.8

HIGH

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

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Malwarebytes	Malwarebytes	3.3.1.2183

Related Weaknesses (CWE)

CWE-20

References

https://github.com/ZhiyuanWang-Chengdu-Qihoo360/Malwarebytes_POC/tree/master/0x9ExploitThird Party Advisory
https://github.com/ZhiyuanWang-Chengdu-Qihoo360/Malwarebytes_POC/tree/master/0x9ExploitThird Party Advisory

FAQ

What is CVE-2018-5273?

CVE-2018-5273 is a vulnerability with a CVSS score of 7.8 (HIGH). In Malwarebytes Premium 3.3.1.2183, the driver file (FARFLT.SYS) allows local users to cause a denial of service (BSOD) or possibly have unspecified other impact because of not validating input values...

How severe is CVE-2018-5273?

CVE-2018-5273 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2018-5273?

Check the references section above for vendor advisories and patch information. Affected products include: Malwarebytes Malwarebytes.