The Apache NiFi PMC would like to announce the following CVE discovery in 
Apache NiFi 1.1.0 - 1.3.0. This issue was resolved with the release of NiFi 
1.4.0 on October 2, 2017. NiFi is an easy to use, powerful, and reliable system 
to process and distribute data. It supports powerful and scalable directed 
graphs of data routing, transformation, and system mediation logic. For more 
information, see https://nifi.apache.org/security.html.

CVE-2017-15703 <https://nifi.apache.org/security.html#CVE-2017-15703>: Apache 
NiFi Java deserialization issue in template XML upload

Severity: Moderate

Versions Affected:

Apache NiFi 1.0.0 - 1.3.0

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.

Mitigation: 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.

Credit: This issue was discovered by Mike Cole.

Released: October 2, 2017 (Updated January 25, 2018)


Andy LoPresto
[email protected]
[email protected]
PGP Fingerprint: 70EC B3E5 98A6 5A3F D3C4  BACE 3C6E F65B 2F7D EF69

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