CVE-2018-17193 Cross site scripting in org.apache.nifi:nifi

What is CVE-2018-17193?

CVE-2018-17193 is a medium-severity cross-site scripting vulnerability in Apache Nifi, published on 19 Dec 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

The message-page.jsp error page used the value of the HTTP request header X-ProxyContextPath without sanitization, resulting in a reflected XSS attack. Mitigation: The fix to correctly parse and sanitize the request attribute value was applied on the Apache NiFi 1.8.0 release. Users running a prior 1.x release should upgrade to the appropriate release.

Weakness: CWE-79

Which versions are affected by CVE-2018-17193?

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

Products include Apache Nifi.

How do I fix CVE-2018-17193?

Upgrade org.apache.nifi:nifi to 1.8.0 or later.

Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.

Is CVE-2018-17193 being exploited?

There is no known exploitation of CVE-2018-17193 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-4qq9-rrq6-48ff.