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OpenSSL Alternative Certificate Chain Validation Vulnerability

Last Update Date: 10 Jul 2015 10:42 Release Date: 10 Jul 2015 4165 Views

RISK: High Risk

TYPE: Security software and application - Security Software & Appliance

TYPE: Security Software & Appliance

A vulnerability was identified in OpenSSL. A remote user can bypass certificate validation on the target system.

 

When the validation of a certificate chain fails, the system attempts to validate an alternate certificate chain but does not check the CA flag of untrusted certificates. As a result, a remote user can cause the target system to validate an invalid certificate using a valid leaf certificate.


Impact

  • Information Disclosure
  • Spoofing
  • Data Manipulation

System / Technologies affected

  • Version 1.0.1o, 1.0.1n, 1.0.2b, 1.0.2c

 


Solutions

Before installation of the software, please visit the software manufacturer web-site for more details.

  • Update to version 1.0.1p or 1.0.2d

Vulnerability Identifier


Source


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