CVE-2014-3120 on CISA KEV

The default configuration in Elasticsearch before 1.2 enables dynamic scripting, which allows remote attackers to execute arbitrary MVEL expressions and Java code via the source parameter to _search. NOTE: this only violates the vendor's intended security policy if the user

01What CISA says about this vulnerability

The default configuration in Elasticsearch before 1.2 enables dynamic scripting, which allows remote attackers to execute arbitrary MVEL expressions and Java code via the source parameter to _search. NOTE: this only violates the vendor's intended security policy if the user does not run Elasticsearch in its own independent virtual machine.

02Required action — verbatim from CISA

Apply updates per vendor instructions.

03Notes & references

• www.elastic.co — https://www.elastic.co/blog/logstash-1-4-3-released
• www.exploit-db.com — http://www.exploit-db.com/exploits/33370
• www.securityfocus.com — http://www.securityfocus.com/bid/67731
• www.osvdb.org — http://www.osvdb.org/106949
• bouk.co — http://bouk.co/blog/elasticsearch-rce/
• www.rapid7.com — http://www.rapid7.com/db/modules/exploit/multi/elasticsearch/script_mvel_rce
• www.found.no — https://www.found.no/foundation/elasticsearch-security/#staying-safe-while-devel…
• www.elastic.co — https://www.elastic.co/community/security/

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

Vendor	Product	Versions
n	a / n/a	n/a

06Detection

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