Vulnerability CVE-2017-6417


Published: 2017-03-21   Modified: 2017-03-30

Description:
Code injection vulnerability in Avira Total Security Suite 15.0 (and earlier), Optimization Suite 15.0 (and earlier), Internet Security Suite 15.0 (and earlier), and Free Security Suite 15.0 (and earlier) allows a local attacker to bypass a self-protection mechanism, inject arbitrary code, and take full control of any Avira 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.

Vendor: Avira
Product: Free security suite 
Version: 15.0;
Product: Optimization suite 
Version: 15.0;
Product: Total security suite 
Version: 15.0;
Product: Internet security suite 
Version: 15.0;

CVSS2 => (AV:L/AC:L/Au:N/C:C/I:C/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.2/10
10/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Complete
Complete
Complete

 References:
http://cybellum.com/doubleagent-taking-full-control-antivirus/
http://cybellum.com/doubleagentzero-day-code-injection-and-persistence-technique/
http://www.securityfocus.com/bid/97021

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