CVE-2019-12409 — The 8

The 8.1.1 and 8.2.0 releases of Apache Solr contain an insecure setting for the ENABLE_REMOTE_JMX_OPTS configuration option in the default solr.in.sh configuration file shipping with Solr. If you use the default solr.in.sh file from the affected releases, then JMX monitoring will

01What is this vulnerability?

The 8.1.1 and 8.2.0 releases of Apache Solr contain an insecure setting for the ENABLE_REMOTE_JMX_OPTS configuration option in the default solr.in.sh configuration file shipping with Solr. If you use the default solr.in.sh file from the affected releases, then JMX monitoring will be enabled and exposed on RMI_PORT (default=18983), without any authentication. If this port is opened for inbound…

02Affected products

Vendor	Product	Versions
Apache	Solr	8.1.1 and 8.2.0 for Linux

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2019-11-18T20:50:59.000Z
• Last modified: 2024-08-04T23:17:39.994Z

09References

• lists.apache.org — https://lists.apache.org/thread.html/6640c7e370fce2b74e466a605a46244ccc40666ad9e…
• lists.apache.org — https://lists.apache.org/thread.html/ce7c0b456b15f6c7518adefa54ec948fed6de8e951a…
• lists.apache.org — https://lists.apache.org/thread.html/925cdb49ceae78baddb45da7beb9b4d2b1ddc4a8e31…
• lists.apache.org — https://lists.apache.org/thread.html/a044eae4f6f5b0160ece5bf9cc4c0dad90ce7dd9bb2…
• lists.apache.org — https://lists.apache.org/thread.html/47e112035b4aa67ece3b75dbcd1b9c9212895b9dfe2…
• support.f5.com — https://support.f5.com/csp/article/K23720587?utm_source=f5support&amp%3Butm_medi…
• github.com — https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2019-12409-RCE%20Vu…