CVE-2017-15703 Denial of service via deserialization attack in nifi

What is CVE-2017-15703?

CVE-2017-15703 is a medium-severity unsafe deserialization vulnerability in Apache Nifi, published on 25 Jan 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

Any authenticated user (valid client certificate but without ACL permissions) could upload a template which contained malicious code and caused a denial of service via Java deserialization attack. The fix to properly handle Java deserialization was applied on the Apache NiFi 1.4.0 release. Users running a prior 1.x release should upgrade to the appropriate release.

Weakness: CWE-502

Which versions are affected by CVE-2017-15703?

2 open source packages ship an affected version, including org.apache.nifi:nifi-framework-cluster-protocol. It affects 1 product.

Products include Apache Nifi.

How do I fix CVE-2017-15703?

Upgrade org.apache.nifi:nifi-framework-cluster-protocol to 1.5.0 or later.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2017-15703 being exploited?

There is no known exploitation of CVE-2017-15703 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 Critical 9.8
• CVE-2017-15697 Apache NiFi XSS issue in context path handling Critical 9.8
• CVE-2017-5636 Injection in Apache NiFi Critical 9.8
• CVE-2026-68981 Apache NiFi: Uncontrolled Resource Consumption through Decompression of HTTP Requests High 8.8
• CVE-2023-36542 Apache NiFi: Potential Code Injection with Properties Referencing Remote Resources High 8.8

All Apache Nifi vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-xwx6-vmj4-5rv8.