CVE-2022-39224 Arbitrary shell execution when extracting or listing files contained in a malicious rpm.
Attackers can execute arbitrary shell commands via malicious RPM files processed by the arr-pm Ruby library.
- 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-2022-39224?
CVE-2022-39224 is a high-severity command injection vulnerability in jordansissel ruby-arr-pm, published on 21 Sep 2022. 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
Arr-pm is an RPM reader/writer library written in Ruby. Versions prior to 0.0.12 are subject to OS command injection resulting in shell execution if the RPM contains a malicious "payload compressor" field. This vulnerability impacts the `extract` and `files` methods of the `RPM::File` class of this library. Version 0.0.12 patches these issues. A workaround for this issue is to ensure any RPMs being processed contain valid/known payload compressor values such as gzip, bzip2, xz, zstd, and lzma. The payload compressor field in an rpm can be checked by using the rpm command line tool.
Weakness: CWE-78
Which versions are affected by CVE-2022-39224?
2 open source packages ship an affected version, including arr-pm. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
arr-pm RubyGems | All versions | 0.0.12 |
arr-pm RubyGems | All versions | 0.0.12 |
Products include Ruby-Arr-Pm Project Ruby-Arr-Pm.
How do I fix CVE-2022-39224?
Upgrade arr-pm to 0.0.12 or later.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2022-39224 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-39224 exists.
Sources
Also known as GHSA-88cv-mj24-8w3q.