VDB-169727 · CVE-2020-7021 · GCVE-0-2020-7021

Elasticsearch up to 6.8.13/7.9.x Audit Logging emit_request_body log file

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.0	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Elasticsearch up to 6.8.13/7.9.x. It has been classified as problematic. This affects an unknown function of the component Audit Logging. The manipulation of the argument emit_request_body leads to log file. This vulnerability is uniquely identified as CVE-2020-7021. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Elasticsearch up to 6.8.13/7.9.x and classified as problematic. This issue affects an unknown code block of the component Audit Logging. The manipulation of the argument emit_request_body with an unknown input leads to a log file vulnerability. Using CWE to declare the problem leads to CWE-532. Information written to log files can be of a sensitive nature and give valuable guidance to an attacker or expose sensitive user information. Impacted is confidentiality.

The weakness was disclosed 02/11/2021. It is possible to read the advisory at discuss.elastic.co. The identification of this vulnerability is CVE-2020-7021. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

Upgrading to version 6.8.14 or 7.10.0 eliminates this vulnerability.

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Productinfo

Name

Elasticsearch

Version

License

free

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.2
VulDB Meta Temp Score: 4.1

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.9
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Log file
CWE: CWE-532 / CWE-200 / CWE-284
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Elasticsearch 6.8.14/7.10.0

Timelineinfo

01/14/2020 🔍
02/11/2021 +394 days 🔍
02/11/2021 +0 days 🔍
02/27/2021 +16 days 🔍

Sourcesinfo

Advisory: discuss.elastic.co
Status: Confirmed

CVE: CVE-2020-7021 (🔍)
GCVE (CVE): GCVE-0-2020-7021
GCVE (VulDB): GCVE-100-169727

Entryinfo

Created: 02/11/2021 08:34
Updated: 02/27/2021 23:14
Changes: 02/11/2021 08:34 (38), 02/27/2021 23:08 (5), 02/27/2021 23:14 (18)
Complete: 🔍
Cache ID: 216::103