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CVE-2014-3120

8.1 · HIGHActively Exploited

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.

Published Jul 28, 2014elasticCWE-284EPSS 88.56%

Overview

CVE-2014-3120 is a high-severity vulnerability affecting elastic elasticsearch. It was published on July 28, 2014 and has a CVSS 3.1 base score of 8.1 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

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.

Remediation

Check the references section for vendor advisories and patches from elastic. Update elasticsearch to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus
elasticelasticsearch>= 0, < 1.2.0Affected

References

Refbouk.co/blog/elasticsearch-rce/Refwww.exploit-db.com/exploits/33370Refwww.osvdb.org/106949Refwww.rapid7.com/db/modules/exploit/multi/elasticsearch/script_mvel_rceRefwww.securityfocus.com/bid/67731Refwww.elastic.co/blog/logstash-1-4-3-releasedRefwww.elastic.co/community/security/Refwww.found.no/foundation/elasticsearch-security/#staying-safe-while-developing-with-elasticsearchRefbouk.co/blog/elasticsearch-rce/Refwww.exploit-db.com/exploits/33370

How CyberStrike helps

Frequently asked questions

What is CVE-2014-3120?

CVE-2014-3120 is a high-severity vulnerability affecting elastic elasticsearch. It was published on July 28, 2014 and has a CVSS 3.1 base score of 8.1 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

How severe is CVE-2014-3120?

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2014-3120?

Check the references section for vendor advisories and patches from elastic. Update elasticsearch to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2014-3120?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2014-3120 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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