[tor-bugs] #17369 [Tor Browser]: The RC4 cipher flags in TBB must be set to "false" by default

["Tor Bug Tracker & Wiki" <blackhole@xxxxxxxxxxxxxx>]

#17369: The RC4 cipher flags in TBB must be set to "false" by default
-----------------------------+------------------------------
     Reporter:  TORques      |      Owner:  tbb-team
         Type:  defect       |     Status:  new
     Priority:  Medium       |  Milestone:  Tor: unspecified
    Component:  Tor Browser  |    Version:  Tor: unspecified
     Severity:  Normal       |   Keywords:
Actual Points:               |  Parent ID:
       Points:               |    Sponsor:
-----------------------------+------------------------------
 Related to the obsolete/broken RC4 cipher, the TBB v5.0.3 about:config ->
 RC4 has 5 flags set to "true" by default

 security.ssl3.ecdhe_ecdsa_rc4_128_sha;true
 security.ssl3.ecdhe_rsa_rc4_128_sha;true
 security.ssl3.rsa_rc4_128_md5;true
 security.ssl3.rsa_rc4_128_sha;true
 security.tls.unrestricted_rc4_fallback;true

 Since the RC4 was proved insecure and obsolete, the TBB must avoid using
 this by default

 https://community.qualys.com/blogs/securitylabs/2015/05/21/ssl-labs-117
 -obsolete-crypto-rc4-and-logjam

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/17369>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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