What is CVE-2017-15703?

CVE-2017-15703 is a medium-severity vulnerability in Apache Nifi, classified under Deserialization of Untrusted Data. CVSS score: 5.0/10. Published 2018-01-25.

How severe is CVE-2017-15703?

Medium severity. CVSS v3 base score is 5.0 out of 10.

Is CVE-2017-15703 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Deserialization in Apache Nifi

CVE-2017-15703

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.

Vulnerability class: Insecure Deserialization

EPSS: 0.009 (54.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.0 (Medium). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H.

Affected products

Apache Nifi
Apache Software Foundation Nifi — versions 1.0.0 - 1.3.0

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

Public proof-of-concept exploits

PalindromeLabs/Java-Deserialization-CVEs

References

security@apache.org (x_refsource_CONFIRM, Vendor Advisory)

Frequently asked questions

What is CVE-2017-15703?: CVE-2017-15703 is a medium-severity vulnerability in Apache Nifi, classified under Deserialization of Untrusted Data. CVSS score: 5.0/10. Published 2018-01-25.
How severe is CVE-2017-15703?: Medium severity. CVSS v3 base score is 5.0 out of 10.
Is CVE-2017-15703 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.