CVE-2018-12551 (GCVE-0-2018-12551)

Vulnerability from cvelistv5 – Published: 2019-03-27 17:26 – Updated: 2024-08-05 08:38
VLAI?
Summary
When Eclipse Mosquitto version 1.0 to 1.5.5 (inclusive) is configured to use a password file for authentication, any malformed data in the password file will be treated as valid. This typically means that the malformed data becomes a username and no password. If this occurs, clients can circumvent authentication and get access to the broker by using the malformed username. In particular, a blank line will be treated as a valid empty username. Other security measures are unaffected. Users who have only used the mosquitto_passwd utility to create and modify their password files are unaffected by this vulnerability.
Severity ?
No CVSS data available.
CWE
  • CWE-703 - Improper Check or Handling of Exceptional Conditions
Assigner
References
Impacted products
Vendor Product Version
The Eclipse Foundation Eclipse Mosquitto Affected: 1.0 , < unspecified (custom)
Affected: unspecified , ≤ 1.5.5 (custom)
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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