TLS Firefox compatibility

By
Rejah Rehim
Published on
02 Jul 2018
Vulnerability

The TLS protocol is used to provide privacy and data integrity between two or more communicating computer applications. When secured by TLS, connections between a client and a server have one or more of the following properties:-

  1. The connection is private
  2. The identity of parties can be authenticated
  3. The connection is reliable

Transportation layer came from Secure Socket Layer. A careful configuration of TLS will provide additional privacy-related properties like forwarding secrecy, prevent discloser of encryption keys etc.

Some of the TLS certificates do not support old Firefox versions.

Impact

The impact include:-

  • Renegotiation attack
  • Downgrade attacks like Logjam and FREAK
  • Cross-platform attacks like DROWN
  • BEAST attack
  • Breach attacks
  • POODLE attacks

Mitigation / Precaution

This vulnerability can be fixed by:-

  • Change the TLS cipher for the users using older versions of Firefox.
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Written by
Rejah Rehim
Rejah Rehim
Co-founder, Director
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