Critical severity · published Sep 29, 2021
CVE-2021-35943
Couchbase Server 6.5.x and 6.6.x through 6.6.2 has Incorrect Access Control
9.8
CVSS
1.1%
EPSS
No
On KEV
Description
Couchbase Server 6.5.x and 6.6.x through 6.6.2 has Incorrect Access Control. Externally managed users are not prevented from using an empty password, per RFC4513.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 65% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CS
Couchbase Server · Couchbase
6.5.0 through 6.5.2; 6.6.0 before 6.6.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-35943
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-35943
Release Notes
https://docs.couchbase.com/server/current/release-notes/relnotes.html
Vendor Advisory
https://www.couchbase.com/alerts
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