Avast/AVG Antivirus up to 19.7 DLL Loader wbemcomn.dll untrusted search path

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Avast/AVG Antivirus up to 19.7. This impacts an unknown function in the library WINDIR%\system32\wbemcomn.dll of the component DLL Loader. Such manipulation leads to untrusted search path. This vulnerability is listed as CVE-2019-17093. The attack must be carried out locally. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Avast/AVG Antivirus up to 19.7 (Anti-Malware Software). It has been rated as critical. Affected by this issue is an unknown part in the library WINDIR%\system32\wbemcomn.dll of the component DLL Loader. The manipulation with an unknown input leads to a untrusted search path vulnerability. Using CWE to declare the problem leads to CWE-426. The product searches for critical resources using an externally-supplied search path that can point to resources that are not under the product's direct control. Impacted is confidentiality, integrity, and availability. CVE summarizes:

An issue was discovered in Avast antivirus before 19.8 and AVG antivirus before 19.8. A DLL Preloading vulnerability allows an attacker to implant %WINDIR%\system32\wbemcomn.dll, which is loaded into a protected-light process (PPL) and might bypass some of the self-defense mechanisms. This affects all components that use WMI, e.g., AVGSvc.exe 19.6.4546.0 and TuneupSmartScan.dll 19.1.884.0.

The weakness was presented 10/23/2019. This vulnerability is handled as CVE-2019-17093 since 10/02/2019. Local access is required to approach this attack. A simple authentication is necessary for exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1574 by the MITRE ATT&CK project.

Upgrading to version 19.8 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
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: Untrusted search path
CWE: CWE-426
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Antivirus 19.8

Timelineinfo

10/02/2019 🔍
10/23/2019 +21 days 🔍
10/24/2019 +1 days 🔍
01/27/2024 +1556 days 🔍

Sourcesinfo

Advisory: safebreach.com
Status: Not defined

CVE: CVE-2019-17093 (🔍)
GCVE (CVE): GCVE-0-2019-17093
GCVE (VulDB): GCVE-100-144098

Entryinfo

Created: 10/24/2019 12:33
Updated: 01/27/2024 08:08
Changes: 10/24/2019 12:33 (38), 10/24/2019 12:38 (18), 01/27/2024 08:08 (4)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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