CVE-2018-17247 - Improper Restriction of XML External Entity Reference

Severity

43%

Complexity

86%

Confidentiality

48%

Elasticsearch Security versions 6.5.0 and 6.5.1 contain an XXE flaw in Machine Learning's find_file_structure API. If a policy allowing external network access has been added to Elasticsearch's Java Security Manager then an attacker could send a specially crafted request capable of leaking content of local files on the Elasticsearch node. This could allow a user to access information that they should not have access to.

Elasticsearch Security versions 6.5.0 and 6.5.1 contain an XXE flaw in Machine Learning's find_file_structure API. If a policy allowing external network access has been added to Elasticsearch's Java Security Manager then an attacker could send a specially crafted request capable of leaking content of local files on the Elasticsearch node. This could allow a user to access information that they should not have access to.

CVSS 3.0 Base Score 5.9. CVSS Attack Vector: network. CVSS Attack Complexity: high. CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N).

CVSS 2.0 Base Score 4.3. CVSS Attack Vector: network. CVSS Attack Complexity: medium. CVSS Vector: (AV:N/AC:M/Au:N/C:P/I:N/A:N).

Overview

Type

Elastic Elasticsearch

First reported 6 years ago

2018-12-20 22:29:00

Last updated 5 years ago

2019-10-09 23:36:00

Affected Software

Elastic Elasticsearch 6.5.0

6.5.0

Elastic Elasticsearch 6.5.1

6.5.1

References

106294

Third Party Advisory, VDB Entry

https://discuss.elastic.co/t/elastic-stack-6-5-2-security-update/159594

Vendor Advisory

https://www.elastic.co/community/security

Vendor Advisory

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