CVE-2017-5566 Code injection in n/a
Local attackers can bypass self-protection to inject arbitrary code and take full control of AVG processes via a DoubleAgent attack.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2017-5566?
CVE-2017-5566 is a medium-severity code injection vulnerability in n/a, published on 21 Mar 2017. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Code injection vulnerability in AVG Ultimate 17.1 (and earlier), AVG Internet Security 17.1 (and earlier), and AVG AntiVirus FREE 17.1 (and earlier) allows a local attacker to bypass a self-protection mechanism, inject arbitrary code, and take full control of any AVG 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.
Weakness: CWE-427
Which versions are affected by CVE-2017-5566?
It affects 3 products.
Products include Avg Anti-Virus, Avg Internet Security, Avg Ultimate.
How do I fix CVE-2017-5566?
No fix has been published for CVE-2017-5566 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2017-5566 being exploited?
There is no known exploitation of CVE-2017-5566 in the wild and no public exploit code.
Other vulnerabilities in n/a
Sources
Also known as GHSA-q77f-m2hw-66xj.