Elasticsearch Security 6.5.0/6.5.1 Java Security Manager Request xml external entity reference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Elasticsearch Security 6.5.0/6.5.1. This impacts an unknown function of the component Java Security Manager. Executing a manipulation as part of Request can lead to xml external entity reference. This vulnerability is handled as CVE-2018-17247. The attack can be executed remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Elasticsearch Security 6.5.0/6.5.1 and classified as critical. This vulnerability affects an unknown part of the component Java Security Manager. The manipulation as part of a Request leads to a xml external entity reference vulnerability. The CWE definition for the vulnerability is CWE-611. The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The bug was discovered 11/06/2018. The weakness was released 12/20/2018 (Website). The advisory is shared for download at elastic.co. This vulnerability was named CVE-2018-17247 since 09/20/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 29 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 121249 (Elasticsearch ESA-2018-19), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CGI abuses and running in the context r.

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (121249) and SecurityFocus (BID 106294†). Entries connected to this vulnerability are available at VDB-75175, VDB-102624, VDB-102623 and VDB-102625. Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.6

VulDB Base Score: 5.6
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.9
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Xml external entity reference
CWE: CWE-611 / CWE-610
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 121249
Nessus Name: Elasticsearch ESA-2018-19
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/20/2018 🔍
11/06/2018 +47 days 🔍
12/05/2018 +29 days 🔍
12/20/2018 +15 days 🔍
12/20/2018 +0 days 🔍
12/20/2018 +0 days 🔍
12/21/2018 +1 days 🔍
01/18/2019 +28 days 🔍
04/22/2020 +460 days 🔍

Sourcesinfo

Advisory: elastic.co
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-17247 (🔍)
GCVE (CVE): GCVE-0-2018-17247
GCVE (VulDB): GCVE-100-128236
SecurityFocus: 106294 - Elasticsearch CVE-2018-17247 XML External Entity Injection Vulnerability

See also: 🔍

Entryinfo

Created: 12/21/2018 12:47
Updated: 04/22/2020 20:09
Changes: 12/21/2018 12:47 (66), 04/22/2020 20:09 (6)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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