VDB-126637 · CVE-2018-19085 · Qualys 371322

IObit Malware Fighter 6.2 IOCTL RegFilter.sys memory corruption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.3$0-$5k0.00

A vulnerability was found in IObit Malware Fighter 6.2 (Anti-Malware Software). It has been declared as critical. Affected by this vulnerability is an unknown function in the library RegFilter.sys of the component IOCTL Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

RegFilter.sys in IOBit Malware Fighter 6.2 is susceptible to a stack-based buffer overflow when an attacker uses IOCTL 0x8006E048 with a size larger than 8 bytes. This can lead to denial of service or code execution with root privileges.

The bug was discovered 11/07/2018. The weakness was disclosed 11/10/2018 (Website). The advisory is shared at downwithup.github.io. This vulnerability is known as CVE-2018-19085 since 11/07/2018. The exploitation appears to be easy. An attack has to be approached locally. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $0-$5k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 371322 (IObit Malware Fighter 6.2 Stack-based Buffer Overflow Vulnerability).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The entries 123225, 124489, 124490 and 124491 are pretty similar.

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 8.3
VulDB Meta Temp Score: 8.3

VulDB Base Score: 8.8
VulDB Temp Score: 8.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
ATT&CK: Unknown

Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/07/2018 🔍
11/07/2018 +0 days 🔍
11/09/2018 +2 days 🔍
11/10/2018 +1 days 🔍
11/11/2018 +1 days 🔍
04/11/2020 +517 days 🔍

Sourcesinfo

Advisory: downwithup.github.io
Status: Not defined

CVE: CVE-2018-19085 (🔍)
See also: 🔍

Entryinfo

Created: 11/11/2018 09:07
Updated: 04/11/2020 14:38
Changes: 11/11/2018 09:07 (61), 04/11/2020 14:38 (1)
Complete: 🔍

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