Memory Disclosure in Elasticsearch by Elastic
CVE-2021-22145

6.5MEDIUM

Key Information:

Vendor
Elastic
Status
Elasticsearch
Vendor
CVE Published:
21 July 2021

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 96%

Summary

A specific memory disclosure vulnerability exists in the error reporting of Elasticsearch versions 7.10.0 through 7.13.3. This flaw allows an attacker capable of submitting arbitrary queries to exploit the system by sending malformed queries. As a result, an error message generated may unintentionally include segments of a data buffer that can expose sensitive information, which may encompass Elasticsearch documents or authentication details. This vulnerability highlights the importance of secure query handling and the need for robust safeguards against data leaks.

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2021-22145-poc
Created by niceeeeeeee

References

https://www.oracle.com/security-alerts/cpuapr2022.html
x_refsource_MISC
https://security.netapp.com/advisory/ntap-20210827-0006/
x_refsource_CONFIRM
https://discuss.elastic.co/t/elasticsearch-7-13-4-securit...
x_refsource_MISC

EPSS Score

96% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.