VDB-128233 · CVE-2018-17244 · BID 106318

Elasticsearch Security 6.4.0/6.4.1/6.4.2 Active Directory Request Header information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

A vulnerability classified as critical was found in Elasticsearch Security 6.4.0/6.4.1/6.4.2. Affected by this vulnerability is an unknown function of the component Active Directory Handler. The manipulation as part of a Request Header leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Elasticsearch Security versions 6.4.0 to 6.4.2 contain an error in the way request headers are applied to requests when using the Active Directory, LDAP, Native, or File realms. A request may receive headers intended for another request if the same username is being authenticated concurrently; when used with run as, this can result in the request running as the incorrect user. 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 presented 12/20/2018 (Website). The advisory is shared at elastic.co. This vulnerability is known as CVE-2018-17244 since 09/20/2018. The exploitation appears to be easy. The attack can be launched remotely. The successful exploitation requires a single authentication. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 118799 (Elasticsearch ESA-2018-16), 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 vulnerability database at Tenable (118799). See 75175, 102624, 102623 and 102625 for similar entries.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
ATT&CK: T1592

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

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Current Price Estimation: 🔍

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Nessus ID: 118799
Nessus Name: Elasticsearch ESA-2018-16
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/20/2018 🔍
11/06/2018 +47 days 🔍
11/06/2018 +0 days 🔍
11/07/2018 +1 days 🔍
12/20/2018 +43 days 🔍
12/20/2018 +0 days 🔍
12/21/2018 +1 days 🔍
12/21/2018 +0 days 🔍
04/22/2020 +488 days 🔍

Sourcesinfo

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

CVE: CVE-2018-17244 (🔍)
SecurityFocus: 106318 - Elasticsearch Security CVE-2018-17244 Information Disclosure Vulnerability

See also: 🔍

Entryinfo

Created: 12/21/2018 12:43
Updated: 04/22/2020 18:55
Changes: 12/21/2018 12:43 (70), 04/22/2020 18:55 (4)
Complete: 🔍

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