6.7
MEDIUM
CVE-2017-5567
Avast Premier Code Injection Vulnerability (DoubleAgent Attack)
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.

INFO

Published Date :

March 21, 2017, 4:59 p.m.

Last Modified :

Oct. 3, 2019, 12:03 a.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

0.8
Affected Products

The following products are affected by CVE-2017-5567 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Avast free_antivirus
2 Avast internet_security
3 Avast premier
4 Avast pro_antivirus
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2017-5567.

URL Resource
http://cybellum.com/doubleagent-taking-full-control-antivirus/ Third Party Advisory
http://cybellum.com/doubleagentzero-day-code-injection-and-persistence-technique/ Technical Description Third Party Advisory
http://www.securityfocus.com/bid/97017 Third Party Advisory VDB Entry

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2017-5567 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2017-5567 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CWE Remap by [email protected]

    Oct. 03, 2019

    Action Type Old Value New Value
    Changed CWE CWE-264 CWE-427
  • Initial Analysis by [email protected]

    Mar. 30, 2017

    Action Type Old Value New Value
    Added CVSS V2 (AV:L/AC:L/Au:N/C:C/I:C/A:C)
    Added CVSS V3 AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type http://www.securityfocus.com/bid/97017 No Types Assigned http://www.securityfocus.com/bid/97017 Third Party Advisory, VDB Entry
    Changed Reference Type http://cybellum.com/doubleagentzero-day-code-injection-and-persistence-technique/ No Types Assigned http://cybellum.com/doubleagentzero-day-code-injection-and-persistence-technique/ Technical Description, Third Party Advisory
    Changed Reference Type http://cybellum.com/doubleagent-taking-full-control-antivirus/ No Types Assigned http://cybellum.com/doubleagent-taking-full-control-antivirus/ Third Party Advisory
    Added CWE CWE-264
    Added CPE Configuration OR *cpe:2.3:a:avast:free_antivirus:12.3:*:*:*:*:*:*:* (and previous) *cpe:2.3:a:avast:internet_security:12.3:*:*:*:*:*:*:* (and previous) *cpe:2.3:a:avast:premier:12.3:*:*:*:*:*:*:* (and previous) *cpe:2.3:a:avast:pro_antivirus:12.3:*:*:*:*:*:*:* (and previous)
  • CVE Modified by [email protected]

    Mar. 24, 2017

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/97017 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2017-5567 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2017-5567 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.04 }} 0.00%

score

0.05635

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability