CVE-2023-22832 Apache NiFi: Improper Restriction of XML External Entity References in ExtractCCDAAttributes
Attackers can exploit XML External Entity vulnerabilities in the ExtractCCDAAttributes processor to read sensitive files or cause denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-22832?
CVE-2023-22832 is a high-severity vulnerability in Apache Nifi, published on 10 Feb 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The ExtractCCDAAttributes Processor in Apache NiFi 1.2.0 through 1.19.1 does not restrict XML External Entity references.
Flow configurations that include the ExtractCCDAAttributes Processor are vulnerable to malicious XML documents that contain Document Type Declarations with XML External Entity references.
The resolution disables Document Type Declarations and disallows XML External Entity resolution in the ExtractCCDAAttributes Processor.
Weakness: CWE-611
Which versions are affected by CVE-2023-22832?
3 open source packages ship an affected version, including org.apache.nifi:nifi-ccda-processors and nifi. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.apache.nifi:nifi-ccda-processors Maven | From 1.2.0 | 1.20.0 |
org.apache.nifi:nifi-ccda-processors Maven | From 1.2.0 | 1.20.0 |
nifi Bitnami | From 1.2.0 to 1.19.1 | None |
Products include Apache Nifi.
How do I fix CVE-2023-22832?
Upgrade org.apache.nifi:nifi-ccda-processors to 1.20.0 or later.
Is CVE-2023-22832 being exploited?
There is no known exploitation of CVE-2023-22832 in the wild and no public exploit code.
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-2023-22832, GHSA-hxjp-q6c3-38fx.