CVE-2020-9486 Insertion of Sensitive Information into Log File in Apache NiFi Stateless
Attackers can read sensitive property values from log output when flows are triggered in Apache NiFi.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-9486?
CVE-2020-9486 is a high-severity vulnerability in Apache Nifi, published on 1 Oct 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In Apache NiFi 1.10.0 to 1.11.4, the NiFi stateless execution engine produced log output which included sensitive property values. When a flow was triggered, the flow definition configuration JSON was printed, potentially containing sensitive values in plaintext.
Weakness: CWE-532
Which versions are affected by CVE-2020-9486?
3 open source packages ship an affected version, including org.apache.nifi:nifi-stateless and nifi. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.apache.nifi:nifi-stateless Maven | From 1.10.0 | 1.12.0-RC1 |
org.apache.nifi:nifi-stateless Maven | From 1.10.0 | 1.12.0-RC1 |
nifi Bitnami | From 1.0.0 to 1.11.4 | None |
Products include Apache Nifi.
How do I fix CVE-2020-9486?
Upgrade org.apache.nifi:nifi-stateless to 1.12.0-RC1 or later.
Is CVE-2020-9486 being exploited?
There is no known exploitation of CVE-2020-9486 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-2020-9486, GHSA-g644-pr5v-vppf.