CVE-2021-31559

S2S TcpToken authentication bypass

State: Published
Severity: 7.5 High
Published: May 6, 2022
Updated: Aug 3, 2024
Reserved: Nov 3, 2021

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.

Scores

CVSS	Score	Vector	Source
3.1	7.5 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N	Splunk

Weaknesses

CWE-288

Affected Products

Product	Versions
Splunk EnterpriseSplunk	8.2 version(s) before 8.2.1Affected Version(s) before 8.1.5Affected

References

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

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.