CVE-2017-5567 Code injection in n/a
Local attackers can bypass self-protection to inject code and take control of Avast 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-2017-5567?
CVE-2017-5567 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 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.
Weakness: CWE-427
Which versions are affected by CVE-2017-5567?
It affects 4 products.
Products include Avast Free Antivirus, Avast Internet Security, Avast Premier, Avast Pro Antivirus.
How do I fix CVE-2017-5567?
No fix has been published for CVE-2017-5567 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-2017-5567 being exploited?
There is no known exploitation of CVE-2017-5567 in the wild and no public exploit code.
Other vulnerabilities in n/a
- CVE-2024-7227 Avast Free Antivirus AvastSvc Link Following Local Privilege Escalation Vulnerability
- CVE-2024-7232 Avast Free Antivirus AvastSvc Link Following Local Privilege Escalation Vulnerability
- CVE-2024-7233 Avast Free Antivirus AvastSvc Link Following Local Privilege Escalation Vulnerability
- CVE-2018-12572 Information disclosure in n/a
- CVE-2024-7228 Avast Free Antivirus Link Following Denial-of-Service Vulnerability
Sources
Also known as GHSA-jp94-65m5-f9mg.