CVE-2014-3120: Elasticsearch Remote Code Execution Vulnerability
First published: Mon Dec 09 2013(Updated: )
Common Vulnerabilities and Exposures assigned an identifier <a href="https://access.redhat.com/security/cve/CVE-2014-3120">CVE-2014-3120</a> to the following vulnerability: Name: <a href="https://access.redhat.com/security/cve/CVE-2014-3120">CVE-2014-3120</a> URL: <a href="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-3120">http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-3120</a> Assigned: 20140429 Reference: EXPLOIT-DB:33370 Reference: <a href="http://www.exploit-db.com/exploits/33370">http://www.exploit-db.com/exploits/33370</a> Reference: <a href="http://bouk.co/blog/elasticsearch-rce/">http://bouk.co/blog/elasticsearch-rce/</a> Reference: <a href="http://www.rapid7.com/db/modules/exploit/multi/elasticsearch/script_mvel_rce">http://www.rapid7.com/db/modules/exploit/multi/elasticsearch/script_mvel_rce</a> Reference: <a href="https://www.found.no/foundation/elasticsearch-security/#staying-safe-while-developing-with-elasticsearch">https://www.found.no/foundation/elasticsearch-security/#staying-safe-while-developing-with-elasticsearch</a> Reference: <a href="http://www.securityfocus.com/bid/67731">http://www.securityfocus.com/bid/67731</a> Reference: OSVDB:106949 Reference: <a href="http://www.osvdb.org/106949">http://www.osvdb.org/106949</a> 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. As noted in <<a href="http://bouk.co/blog/elasticsearch-rce/">http://bouk.co/blog/elasticsearch-rce/</a>>, adding "script.disable_dynamic: true" to elasticsearch.yml, and ensuring Elasticsearch only binds to localhost, can help mitigate this issue.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/katello-configure | <0:1.4.5.1-3.el6 | 0:1.4.5.1-3.el6 |
| redhat/elasticsearch | <1.2.0 | 1.2.0 |
| maven/org.elasticsearch:elasticsearch | <1.4.0.Beta1 | 1.4.0.Beta1 |
| Elastic Elasticsearch | <=1.1.1 | |
| Elastic |
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2014-3120 https://nvd.nist.gov/vuln/detail/CVE-2014-3120 https://access.redhat.com/solutions/1191453
- https://bugzilla.redhat.com/show_bug.cgi?id=1124252
- https://access.redhat.com/errata/RHSA-2014:1171
- https://access.redhat.com/errata/RHSA-2014:1170
- https://access.redhat.com/errata/RHSA-2014:1186
- https://access.redhat.com/security/cve/CVE-2014-3120
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-3120
- http://www.exploit-db.com/exploits/33370
- http://bouk.co/blog/elasticsearch-rce/
- http://www.rapid7.com/db/modules/exploit/multi/elasticsearch/script_mvel_rce
- https://www.found.no/foundation/elasticsearch-security/#staying-safe-while-developing-with-elasticsearch
- http://www.securityfocus.com/bid/67731
- http://www.osvdb.org/106949
- https://blog.liftsecurity.io/2013/11/30/elasticsearch-command-execution-using-script
- https://www.found.no/foundation/elasticsearch-security/#scripting-for-fun-and-profit
- http://www.elasticsearch.org/blog/scripting-security/
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/multi/elasticsearch/script_mvel_rce.rb
- https://github.com/elasticsearch/elasticsearch/commit/81e83cca
- https://github.com/elasticsearch/elasticsearch/issues/5853
- http://www.elasticsearch.org/guide/en/elasticsearch/reference/current/modules-scripting.html#_enabling_dynamic_scripting
- https://access.redhat.com/solutions/1191453
- https://rhn.redhat.com/errata/RHSA-2014-1170.html
- https://rhn.redhat.com/errata/RHSA-2014-1171.html
- https://rhn.redhat.com/errata/RHSA-2014-1186.html
- https://www.elastic.co/blog/logstash-1-4-3-released
- https://www.elastic.co/community/security/
- https://nvd.nist.gov/vuln/detail/CVE-2014-3120
- https://www.elastic.co/community/security
- http://bouk.co/blog/elasticsearch-rce
- https://github.com/elastic/elasticsearch/issues/7151
- https://github.com/elastic/elasticsearch/pull/7642
- https://github.com/elastic/elasticsearch/commit/bd0eb32d9c3c3f5b6e5f8630c859cd04bdcd4e06
- https://github.com/elastic/elasticsearch/commit/f9de8b65898509e038e33215db0720b508477a12
- https://web.archive.org/web/20140813071419/http://www.securityfocus.com/bid/67731
- https://github.com/advisories/GHSA-mrfm-jxgf-2h6v (Advisory)
Parent vulnerabilities
(Appears in the following advisories)
Frequently Asked Questions
What is the severity of CVE-2014-3120?
CVE-2014-3120 has been classified with a severity level that indicates a critical vulnerability in its affected components.
How do I fix CVE-2014-3120?
To fix CVE-2014-3120, update the affected packages to the recommended versions specified in the official advisories.
Which software is affected by CVE-2014-3120?
CVE-2014-3120 affects the 'katello-configure' package version 1.4.5.1-3.el6, 'elasticsearch' version 1.2.0, and various versions of 'org.elasticsearch:elasticsearch'.
Is the vulnerability CVE-2014-3120 publicly disclosed?
Yes, CVE-2014-3120 has been publicly disclosed and documented by various cybersecurity databases and vendors.
What are the potential impacts of CVE-2014-3120?
The potential impacts of CVE-2014-3120 include unauthorized access and compromise of data within the affected Elasticsearch instances.
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