Splunk Enterprise up to 8.1.4/8.2.0 S2S TCP Token Authentication authentication bypass

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 (≈)
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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.
7.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Splunk Enterprise up to 8.1.4/8.2.0 and classified as critical. The affected element is an unknown function of the component S2S TCP Token Authentication. Such manipulation leads to authentication bypass. This vulnerability is listed as CVE-2021-31559. The attack may be performed from remote. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Splunk Enterprise up to 8.1.4/8.2.0 (Log Management Software) and classified as critical. Affected by this issue is an unknown code of the component S2S TCP Token Authentication. The manipulation with an unknown input leads to a authentication bypass vulnerability. Using CWE to declare the problem leads to CWE-288. A product requires authentication, but the product has an alternate path or channel that does not require authentication. Impacted is confidentiality, integrity, and availability.

The weakness was presented 05/07/2022 as svd-2022-0503. The advisory is available at splunk.com. This vulnerability is handled as CVE-2021-31559 since 11/03/2021. The technical details are unknown and an exploit is not available.

Upgrading to version 8.1.5 or 8.2.1 eliminates this vulnerability.

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Productinfo

Type

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (Splunk Inc.): 🔍

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Authentication bypass
CWE: CWE-288 / CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Enterprise 8.1.5/8.2.1

Timelineinfo

11/03/2021 🔍
05/07/2022 +184 days 🔍
05/07/2022 +0 days 🔍
05/11/2022 +4 days 🔍

Sourcesinfo

Advisory: svd-2022-0503
Status: Confirmed

CVE: CVE-2021-31559 (🔍)
GCVE (CVE): GCVE-0-2021-31559
GCVE (VulDB): GCVE-100-199238

Entryinfo

Created: 05/07/2022 07:30
Updated: 05/11/2022 13:54
Changes: 05/07/2022 07:30 (51), 05/11/2022 13:54 (1)
Complete: 🔍
Cache ID: 216::103

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