Elasticsearch
CVE-2021-22144
MEDIUM
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
Lifecycle Timeline
1Blast Radius
ecosystem impact- 4 maven packages depend on org.elasticsearch:elasticsearch (4 direct, 0 indirect)
Ecosystem-wide dependent count for version 7.0.0-alpha1.
DescriptionNVD
In Elasticsearch versions before 7.13.3 and 6.8.17 an uncontrolled recursion vulnerability that could lead to a denial of service attack was identified in the Elasticsearch Grok parser. A user with the ability to submit arbitrary queries to Elasticsearch could create a malicious Grok query that will crash the Elasticsearch node.
AnalysisAI
In Elasticsearch versions before 7.13.3 and 6.8.17 an uncontrolled recursion vulnerability that could lead to a denial of service attack was identified in the Elasticsearch Grok parser. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity.
Technical ContextAI
This vulnerability is classified under CWE-674. In Elasticsearch versions before 7.13.3 and 6.8.17 an uncontrolled recursion vulnerability that could lead to a denial of service attack was identified in the Elasticsearch Grok parser. A user with the ability to submit arbitrary queries to Elasticsearch could create a malicious Grok query that will crash the Elasticsearch node. Affected products include: Elastic Elasticsearch, Oracle Communications Cloud Native Core Automated Test Suite. Version information: before 7.13.3.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
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Same weakness CWE-674 – Uncontrolled Recursion
View allSame technique Denial Of Service
View allShare
External POC / Exploit Code
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