CVEvulnerability

CVE-2019-11495

9.8 CRITICAL Published 2019-09-10 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2019-09-10
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
Weaknesses
CWE-335

Description

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.

Affected configurations

• couchbase couchbase server 5.1.1

Related

Weakness · CWE (1)

  • CWE-335 Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG) weakness

Referenced by CWE · observed example (2)

  • CWE-335 Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG) weakness
  • CWE-337 Predictable Seed in Pseudo-Random Number Generator (PRNG) weakness

References