CVE-2018-1000201 Ruby-ffi has a DLL loading issue
Attackers can hijack DLL loading on Windows by using a Symbol as a DLL name, potentially leading to arbitrary code execution.
- 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-2018-1000201?
CVE-2018-1000201 is a high-severity path traversal vulnerability in n/a, published on 22 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
ruby-ffi version 1.9.23 and earlier has a DLL loading issue which can be hijacked on Windows OS, when a Symbol is used as DLL name instead of a String This vulnerability appears to have been fixed in v1.9.24 and later.
Weakness: CWE-426
Which versions are affected by CVE-2018-1000201?
2 open source packages ship an affected version, including ffi. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
ffi RubyGems | All versions | 1.9.24 |
ffi RubyGems | All versions | 1.9.24 |
Products include Ruby-Ffi Project Ruby-Ffi.
How do I fix CVE-2018-1000201?
Upgrade ffi to 1.9.24 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2018-1000201 being exploited?
There is no known exploitation of CVE-2018-1000201 in the wild and no public exploit code.
Sources
Also known as GHSA-2gw2-8q9w-cw8p.