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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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Elasticsearch Security 6.4.0/6.4.1/6.4.2. It has been rated as critical. The affected element is an unknown function of the component Active Directory Handler. This manipulation as part of Request Header causes information disclosure. This vulnerability appears as CVE-2018-17244. The attack may be initiated remotely. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

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 databases at Tenable (118799) and SecurityFocus (BID 106318†). See VDB-75175, VDB-102624, VDB-102623 and VDB-102625 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
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: 118799
Nessus Name: Elasticsearch ESA-2018-16
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 🔍
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 (🔍)
GCVE (CVE): GCVE-0-2018-17244
GCVE (VulDB): GCVE-100-128233
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: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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