Vulnerability Details : 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.
Vulnerability category: Execute code
Products affected by CVE-2019-11495
- cpe:2.3:a:couchbase:couchbase_server:5.1.1:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-11495
1.34%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 86 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-11495
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2019-11495
-
The product uses a Pseudo-Random Number Generator (PRNG) but does not correctly manage seeds.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-11495
-
https://www.couchbase.com/resources/security#SecurityAlerts
Enterprise-Level Security | CouchbaseBroken Link;Vendor Advisory
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