Home/CVE/When Eclipse Mosquitto version 1.0 to 1.5.5 (inclusive) is configured to use an ACL file, and that ACL file is empty, or
CVE

CVE-2018-12550

When Eclipse Mosquitto version 1.0 to 1.5.5 (inclusive) is configured to use an ACL file, and that ACL file is empty, or

When Eclipse Mosquitto version 1.0 to 1.5.5 (inclusive) is configured to use an ACL file, and that ACL file is empty, or contains only comments or blank lines, then Mosquitto will treat this as though no ACL file has been defined and use a default allow policy. The new behaviour is to have an empty ACL file mean that all access is denied, which is not a useful configuration but is not unexpected.

HIGH · CVSS 8.1 EPSS 0.0047
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-440Expected Behavior Violation
▤

Affected Products & Versions

1
eclipse mosquitto>= 1.0 and <= 1.5.5
▣

Scoring & Timeline

8.1
HIGH · CVSS v3.0 · emo@eclipse.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 NVD27 Mar 2019 · 06:29 PM
CVSS VectorCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

3
suse-csafopenSUSE-SU-2024:11057-1
suse-csafopenSUSE-SU-2019:0233-1
suse-csafopenSUSE-SU-2019:0237-1
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://bugs.eclipse.org/bugs/show_bug.cgi?id=541870Issue TrackingVendor Advisory
https://lists.debian.org/debian-lts-announce/2019/10/msg00035.html
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