CVE-2019-11497

10.09.2019, 18:15

In Couchbase Server 5.0.0, when an invalid Remote Cluster Certificate was entered as part of the reference creation, XDCR did not parse and check the certificate signature. It then accepted the invalid certificate and attempted to use it to establish future connections to the remote cluster. This has been fixed in version 5.5.0. XDCR now checks the validity of the certificate thoroughly and prevents a remote cluster reference from being created with an invalid certificate.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	NIST	7.5 HIGH	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
mitre	CNA	---				---
CVE	ADP	---				---

Base Score

CVSS 3.x

EPSS Score

Percentile: 37%

Vendor	Product	Version
couchbase	couchbase_server	5.0.0

𝑥

= Vulnerable software versions

Common Weakness Enumeration

CWE-295 - Improper Certificate Validation
The software does not validate, or incorrectly validates, a certificate.

References

https://www.couchbase.com/resources/security#SecurityAlerts