CVE-2017-5567
CVSS V2 High 7.2
CVSS V3 Medium 6.7
Description
Code injection vulnerability in Avast Premier 12.3 (and earlier), Internet Security 12.3 (and earlier), Pro Antivirus 12.3 (and earlier), and Free Antivirus 12.3 (and earlier) allows a local attacker to bypass a self-protection mechanism, inject arbitrary code, and take full control of any Avast process via a "DoubleAgent" attack. One perspective on this issue is that (1) these products do not use the Protected Processes feature, and therefore an attacker can enter an arbitrary Application Verifier Provider DLL under Image File Execution Options in the registry; (2) the self-protection mechanism is intended to block all local processes (regardless of privileges) from modifying Image File Execution Options for these products; and (3) this mechanism can be bypassed by an attacker who temporarily renames Image File Execution Options during the attack.
Overview
- CVE ID
- CVE-2017-5567
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2017-03-21T16:59:00
- Last Modified Date
- 2019-10-03T00:03:26
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:avast:free_antivirus:*:*:*:*:*:*:*:* | 1 | OR | 12.3 | |
| cpe:2.3:a:avast:internet_security:*:*:*:*:*:*:*:* | 1 | OR | 12.3 | |
| cpe:2.3:a:avast:premier:*:*:*:*:*:*:*:* | 1 | OR | 12.3 | |
| cpe:2.3:a:avast:pro_antivirus:*:*:*:*:*:*:*:* | 1 | OR | 12.3 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:C/I:C/A:C
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- COMPLETE
- Integrity Impact
- COMPLETE
- Availability Impact
- COMPLETE
- Base Score
- 7.2
- Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 10
CVSS Version 3
- Version
- 3.0
- Vector String
- CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- HIGH
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 6.7
- Base Severity
- MEDIUM
- Exploitability Score
- 0.8
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| http://cybellum.com/doubleagentzero-day-code-injection-and-persistence-technique/ | Technical Description Third Party Advisory |
| http://cybellum.com/doubleagent-taking-full-control-antivirus/ | Third Party Advisory |
| http://www.securityfocus.com/bid/97017 | Third Party Advisory VDB Entry |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2017-5567 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-5567 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 17:27:10 | Added to TrackCVE | |||
| 2022-12-02 14:59:00 | 2017-03-21T16:59Z | 2017-03-21T16:59:00 | CVE Published Date | updated |
| 2022-12-02 14:59:00 | 2019-10-03T00:03:26 | CVE Modified Date | updated | |
| 2022-12-02 14:59:00 | Analyzed | Vulnerability Status | updated |