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Anti Malware CVE-2019-7651

HIGH
2019-02-08 cve@mitre.org
7.5
CVSS 3.0 · NVD
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Vulnerability Assessment

Impact

CVSS score of 7.5 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. Public proof-of-concept exploit code is available.

Exploit ScenarioDerived

This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the high-severity affected system.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 4.9% exploitation probability (EPSS)

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AnalysisAI

EPP.sys in Emsisoft Anti-Malware prior to version 2018.12 allows an attacker to bypass ACLs because Interpreted Device Characteristics lacks FILE_DEVICE_SECURE_OPEN and therefore files and. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

EPP.sys in Emsisoft Anti-Malware prior to version 2018.12 allows an attacker to bypass ACLs because Interpreted Device Characteristics lacks FILE_DEVICE_SECURE_OPEN and therefore files and directories "inside" the \\.\EPP device are not properly protected, leading to unintended impersonation or object creation. This vulnerability has been fixed in version 2018.12 and later. Affected products include: Emsisoft Anti-Malware. Version information: version 2018.12.

Severity by source

NVD PRIMARY 7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

DescriptionNVD

EPP.sys in Emsisoft Anti-Malware prior to version 2018.12 allows an attacker to bypass ACLs because Interpreted Device Characteristics lacks FILE_DEVICE_SECURE_OPEN and therefore files and directories "inside" the \\.\EPP device are not properly protected, leading to unintended impersonation or object creation. This vulnerability has been fixed in version 2018.12 and later.

Threat Intelligence Overview

EPSS Score
4.9%
Top 9% exploitable
Exploit
POC
Public exploit code exists
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC Yes
EPSS 4.9%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Open
Automatable· derived
Yes
Human Impact· derived
Medium

Priority Score

63
Low Medium High Critical
KEV: 0
EPSS: +5
CVSS: +38
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

Affected Products (CPE)NVD

cpe:2.3:a:emsisoft:anti-malware:*:*:*:*:*:*:*:*
CVE-2012-1461 MEDIUM
4.3 Mar 21

The Gzip file parser in AVG Anti-Virus 10.0.0.1190, Bitdefender 7.2, Command Antivirus 5.2.11.5, Emsisoft Anti-Malware 5

CVE-2012-1459 MEDIUM
4.3 Mar 21

The TAR file parser in AhnLab V3 Internet Security 2011.01.18.00, Avira AntiVir 7.11.1.163, Antiy Labs AVL SDK 2.0.3.7,

CVE-2012-1453 MEDIUM
4.3 Mar 21

The CAB file parser in Dr.Web 5.0.2.03300, Trend Micro HouseCall 9.120.0.1004, Kaspersky Anti-Virus 7.0.0.125, Sophos An

CVE-2012-1425 MEDIUM
4.3 Mar 21

The TAR file parser in Avira AntiVir 7.11.1.163, Antiy Labs AVL SDK 2.0.3.7, Quick Heal (aka Cat QuickHeal) 11.00, Emsis

CVE-2012-1457 MEDIUM
4.3 Mar 21

The TAR file parser in Avira AntiVir 7.11.1.163, Antiy Labs AVL SDK 2.0.3.7, avast!. Rated medium severity (CVSS 4.3), t

CVE-2012-1443 MEDIUM
4.3 Mar 21

The RAR file parser in ClamAV 0.96.4, Rising Antivirus 22.83.00.03, Quick Heal (aka Cat QuickHeal) 11.00, G Data AntiVir

CVE-2017-15921 HIGH POC
7.5 Oct 30

In Watchdog Anti-Malware 2.74.186.150 and Online Security Pro 2.74.186.150, the zam32.sys driver contains a NULL pointer

CVE-2017-15920 HIGH POC
7.5 Oct 30

In Watchdog Anti-Malware 2.74.186.150 and Online Security Pro 2.74.186.150, the zam32.sys driver contains a NULL pointer

CVE-2018-6627 HIGH POC
7.8 Feb 05

In WatchDog Anti-Malware 2.74.186.150, the driver file (ZAMGUARD32.SYS) allows local users to cause a denial of service

CVE-2018-6625 HIGH POC
7.8 Feb 05

In WatchDog Anti-Malware 2.74.186.150, the driver file (ZAMGUARD32.SYS) allows local users to cause a denial of service

CVE-2018-5714 HIGH POC
7.8 Jan 16

In Malwarefox Anti-Malware 2.72.169, the driver file (zam64.sys) allows local users to cause a denial of service (BSOD)

CVE-2018-5713 HIGH POC
7.8 Jan 16

In Malwarefox Anti-Malware 2.72.169, the driver file (zam64.sys) allows local users to cause a denial of service (BSOD)

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