Medium severity · published May 6, 2022
CVE-2021-33845
The Splunk Enterprise REST API allows enumeration of usernames via the lockout error message
5.3
CVSS
0.9%
EPSS
No
On KEV
Description
The Splunk Enterprise REST API allows enumeration of usernames via the lockout error message. The potential vulnerability impacts Splunk Enterprise instances before 8.1.7 when configured to repress verbose login errors.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.9% · higher than 59% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SP
Splunk · Splunk
8.1.0 before 8.1.7 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-33845
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-33845
Vendor Advisory
https://research.splunk.com/application/splunk_user_enumeration_attempt/
Vendor Advisory
https://www.splunk.com/en_us/product-security/announcements/svd-2022-0502.html
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