Home/CVE/In Couchbase Server 5.1.1, the cookie used for intra-node communication was not generated securely. Couchbase Server use
CVE

CVE-2019-11495

In Couchbase Server 5.1.1, the cookie used for intra-node communication was not generated securely. Couchbase Server use

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.

CRITICAL · CVSS 9.8 EPSS 0.01212
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-335Incorrect Usage of Seeds in Pseudo-Random Number Generator (PRNG)
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Affected Products & Versions

1
couchbase serverall versions
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD10 Sep 2019 · 06:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.couchbase.com/resources/security#SecurityAlertsBroken LinkVendor Advisory
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