CVE-2021-31559 - Vulnerability Details - OpenCVE

Description

A crafted request bypasses S2S TCP Token authentication writing arbitrary events to an index in Splunk Enterprise Indexer 8.1 versions before 8.1.5 and 8.2 versions before 8.2.1. The vulnerability impacts Indexers configured to use TCPTokens. It does not impact Universal Forwarders.

Published: 2022-05-06

Score: 7.5 High

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

No analysis available yet.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Splunk

Splunk Enterprise

affected

Version	Status	Constraints
`8.2 version(s) before 8.2.1`	affected	—
`Version(s) before 8.1.5`	affected	—

Configuration 1 [-]

OR	cpe:2.3:a:splunk:splunk:::::enterprise:::*
	cpe:2.3:a:splunk:splunk:8.2.0::::enterprise:::

No data.

No data available yet.

Remediation

No remediation available yet.

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2021-18456	A crafted request bypasses S2S TCP Token authentication writing arbitrary events to an index in Splunk Enterprise Indexer 8.1 versions before 8.1.5 and 8.2 versions before 8.2.1. The vulnerability impacts Indexers configured to use TCPTokens. It does not impact Universal Forwarders.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact None

Integrity Impact High

Availability Impact None

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact None

Integrity Impact Partial

Availability Impact None

This CVE is not in the KEV list.

The EPSS score is 0.00198.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://www.splunk.com/en_us/product-security/announcements/svd-2022-0503.html

History

No history.

Subscriptions

Splunk Splunk

MITRE

Status: PUBLISHED

Assigner: Splunk

Published: 2022-05-06T16:35:19.000Z

Updated: 2024-08-03T23:03:33.306Z

Reserved: 2021-11-03T00:00:00.000Z

Link: CVE-2021-31559

Vulnrichment

No data.

NVD

Status : Modified

Published: 2022-05-06T17:15:08.517

Modified: 2024-11-21T06:05:54.940

Link: CVE-2021-31559

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

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