Emsisoft Anti-Malware 2018.8.1.8923 ACL EPP.sys access control

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.4$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Emsisoft Anti-Malware 2018.8.1.8923. Impacted is an unknown function in the library EPP.sys of the component ACL Handler. The manipulation leads to access control. This vulnerability is referenced as CVE-2019-7651. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in Emsisoft Anti-Malware 2018.8.1.8923 (Anti-Malware Software) and classified as critical. This issue affects some unknown functionality in the library EPP.sys of the component ACL Handler. The manipulation with an unknown input leads to a access control vulnerability. Using CWE to declare the problem leads to CWE-264. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

EPP.sys in Emsisoft Anti-Malware 2018.8.1.8923 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.

The bug was discovered 01/02/2019. The weakness was published 02/08/2019. The identification of this vulnerability is CVE-2019-7651 since 02/08/2019. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1068 for this issue.

The vulnerability was handled as a non-public zero-day exploit for at least 37 days. During that time the estimated underground price was around $0-$5k.

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

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/02/2019 🔍
02/08/2019 +37 days 🔍
02/08/2019 +0 days 🔍
02/09/2019 +1 days 🔍
07/09/2023 +1611 days 🔍

Sourcesinfo

Advisory: blog.emsisoft.com
Status: Not defined

CVE: CVE-2019-7651 (🔍)
GCVE (CVE): GCVE-0-2019-7651
GCVE (VulDB): GCVE-100-130685

Entryinfo

Created: 02/09/2019 10:34
Updated: 07/09/2023 08:39
Changes: 02/09/2019 10:34 (55), 05/09/2020 12:56 (1), 07/09/2023 08:39 (3)
Complete: 🔍
Cache ID: 216::103

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