CVE-2021-3422
CVSS V2 Medium 4.3
CVSS V3 High 7.5
Description
The lack of validation of a key-value field in the Splunk-to-Splunk protocol results in a denial-of-service in Splunk Enterprise instances configured to index Universal Forwarder traffic. The vulnerability impacts Splunk Enterprise versions before 7.3.9, 8.0 versions before 8.0.9, and 8.1 versions before 8.1.3. It does not impact Universal Forwarders. When Splunk forwarding is secured using TLS or a Token, the attack requires compromising the certificate or token, or both. Implementation of either or both reduces the severity to Medium.
Overview
- CVE ID
- CVE-2021-3422
- Assigner
- prodsec@splunk.com
- Vulnerability Status
- Analyzed
- Published Version
- 2022-03-25T19:15:08
- Last Modified Date
- 2022-04-11T19:51:47
Weakness Enumerations
CPE Configuration (Product)
CPE | Vulnerable | Operator | Version Start | Version End |
---|---|---|---|---|
cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:* | 1 | OR | 7.3.9 | |
cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:* | 1 | OR | 8.0 | 8.0.9 |
cpe:2.3:a:splunk:splunk:*:*:*:*:enterprise:*:*:* | 1 | OR | 8.1 | 8.1.3 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:N/C:N/I:N/A:P
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- NONE
- Confidentiality Impact
- NONE
- Integrity Impact
- NONE
- Availability Impact
- PARTIAL
- Base Score
- 4.3
- Severity
- MEDIUM
- Exploitability Score
- 8.6
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- NONE
- Availability Impact
- HIGH
- Base Score
- 7.5
- Base Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 3.6
Sources
Source Name | Source URL |
---|---|
NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-3422 |
MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3422 |
History
Created | Old Value | New Value | Data Type | Notes |
---|---|---|---|---|
2022-04-04 00:41:21 | Added to TrackCVE | |||
2022-12-06 13:17:33 | 2022-03-25T19:15Z | 2022-03-25T19:15:08 | CVE Published Date | updated |
2022-12-06 13:17:33 | 2022-04-11T19:51:47 | CVE Modified Date | updated | |
2022-12-06 13:17:33 | Analyzed | Vulnerability Status | updated |