CVE-2019-11495

In Couchbase Server 5.1.1, the cookie used for intra-node communication was not generated securely. Couchbase Server uses erlang:now() to seed the PRNG which results in a small search space for potential random seeds that could then be used to brute force the cookie and execute code against a remote system. This has been fixed in version 6.0.0.

CVSS v3 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://www.couchbase.com/resources/security#SecurityAlerts	Broken Link Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:couchbase:couchbase_server:5.1.1:*:*:*:*:*:*:*

History

10 Feb 2024, 02:54

Type	Values Removed	Values Added
References	~~() https://www.couchbase.com/resources/security#SecurityAlerts - Vendor Advisory~~	() https://www.couchbase.com/resources/security#SecurityAlerts - Broken Link, Vendor Advisory

18 Apr 2022, 16:14

Type	Values Removed	Values Added
CWE	~~CWE-94~~	CWE-335

Information

Published : 2019-09-10 18:15

Updated : 2024-02-10 02:54

NVD link : CVE-2019-11495

Mitre link : CVE-2019-11495

CVE.ORG link : CVE-2019-11495

JSON object : View

Products Affected

couchbase

couchbase_server

CWE

CWE-335

Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG)

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