CVE-2017-7755 Other in Firefox
Attackers can execute arbitrary code with elevated privileges by placing malicious DLLs in the Firefox installer directory on Windows.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2017-7755?
CVE-2017-7755 is a high-severity vulnerability in Mozilla Firefox, published on 11 Jun 2018. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
The Firefox installer on Windows can be made to load malicious DLL files stored in the same directory as the installer when it is run. This allows privileged execution if the installer is run with elevated privileges. Note: This attack only affects Windows operating systems. Other operating systems are unaffected. This vulnerability affects Firefox < 54, Firefox ESR < 52.2, and Thunderbird < 52.2.
Weakness: CWE-426
Which versions are affected by CVE-2017-7755?
It affects 2 products.
Products include Mozilla Firefox, Mozilla Thunderbird.
How do I fix CVE-2017-7755?
Upgrade to a fixed version.
Is CVE-2017-7755 being exploited?
There is no known exploitation of CVE-2017-7755 in the wild and no public exploit code.
Other vulnerabilities in Mozilla Firefox
Sources
Also known as GHSA-3p4h-hgf4-rvgh.