CVE-2022-33140 Improper Neutralization of Command Elements in Shell User Group Provider
Authenticated privileged users can execute arbitrary OS commands via ShellUserGroupProvider in Apache NiFi when this optional provider is enabled.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2022-33140?
CVE-2022-33140 is a high-severity command injection vulnerability in Apache Nifi, published on 15 Jun 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
The optional ShellUserGroupProvider in Apache NiFi 1.10.0 to 1.16.2 and Apache NiFi Registry 0.6.0 to 1.16.2 does not neutralize arguments for group resolution commands, allowing injection of operating system commands on Linux and macOS platforms. The ShellUserGroupProvider is not included in the default configuration. Command injection requires ShellUserGroupProvider to be one of the enabled User Group Providers in the Authorizers configuration. Command injection also requires an authenticated user with elevated privileges. Apache NiFi requires an authenticated user with authorization to modify access policies in order to execute the command. Apache NiFi Registry requires an authenticated user with authorization to read user groups in order to execute the command. The resolution removes command formatting based on user-provided arguments.
Weakness: CWE-78
Which versions are affected by CVE-2022-33140?
5 open source packages ship an affected version, including org.apache.nifi.registry:nifi-registry-core, nifi and org.apache.nifi:nifi. It affects 2 products.
| Package | Affected | Fixed in |
|---|---|---|
org.apache.nifi.registry:nifi-registry-core Maven | From 0.6.0 | 1.16.3 |
org.apache.nifi.registry:nifi-registry-core Maven | From 0.6.0 | 1.16.3 |
nifi Bitnami | From 1.10.0 to 1.16.2 | None |
org.apache.nifi:nifi Maven | From 1.10.0 | 1.16.3 |
org.apache.nifi:nifi Maven | From 1.10.0 | 1.16.3 |
Products include Apache Nifi, Apache Nifi Registry.
How do I fix CVE-2022-33140?
Upgrade org.apache.nifi.registry:nifi-registry-core to 1.16.3 or later.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2022-33140 being exploited?
There is no known exploitation of CVE-2022-33140 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Apache Nifi
- CVE-2018-1309 Improper Restriction of XML External Entity Reference in Apache NiFi
- CVE-2017-15697 Apache NiFi XSS issue in context path handling
- CVE-2017-5636 Injection in Apache NiFi
- CVE-2026-68981 Apache NiFi: Uncontrolled Resource Consumption through Decompression of HTTP Requests
- CVE-2023-36542 Apache NiFi: Potential Code Injection with Properties Referencing Remote Resources
Sources
Also known as BIT-nifi-2022-33140, GHSA-77hf-23pq-2g7c.