CVE-2019-17093
CVSS V2 Medium 4.4
CVSS V3 High 7.8
Description
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.
Overview
- CVE ID
- CVE-2019-17093
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2019-10-23T17:15:12
- Last Modified Date
- 2021-07-21T11:39:23
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:avast:antivirus:*:*:*:*:*:*:*:* | 1 | OR | 19.8 | |
| cpe:2.3:a:avg:anti-virus:*:*:*:*:*:*:*:* | 1 | OR | 19.8 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:M/Au:N/C:P/I:P/A:P
- Access Vector
- LOCAL
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 4.4
- Severity
- MEDIUM
- Exploitability Score
- 3.4
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 7.8
- Base Severity
- HIGH
- Exploitability Score
- 1.8
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://safebreach.com/blog | Third Party Advisory |
| https://safebreach.com/Post/Avast-Antivirus-AVG-Antivirus-DLL-Preloading-into-PPL-and-Potential-Abuses | Exploit Technical Description Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2019-17093 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-17093 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:09:42 | Added to TrackCVE | |||
| 2022-12-04 04:55:31 | 2019-10-23T17:15Z | 2019-10-23T17:15:12 | CVE Published Date | updated |
| 2022-12-04 04:55:31 | 2021-07-21T11:39:23 | CVE Modified Date | updated | |
| 2022-12-04 04:55:31 | Analyzed | Vulnerability Status | updated |