CVE-2018-12550

UnknownEPSS 1.35%

Last modified

CVE-2018-12550 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 1.35% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability
1.35%

68.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
EclipseMosquitto>= 1.0, <= 1.5.5

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is 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 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.
How severe is CVE-2018-12550?
Severity scoring for CVE-2018-12550 is pending analysis. The EPSS model estimates a 1.35% probability of exploitation in the next 30 days.
How do I fix CVE-2018-12550?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-12550?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST