On 21/08/2013 1:59 p.m., Daniel Niasoff wrote:
Hi,

We are using Squid with SslBump/

Our users are sporadically getting "access denied" errors so I did a bit of 
debugging and saw this.

2013/08/21 01:24:49.900 kid1| Acl.cc(336) matches: ACLList::matches: checking 
authenticated
2013/08/21 01:24:49.900 kid1| Acl.cc(319) checklistMatches: 
ACL::checklistMatches: checking 'authenticated'
2013/08/21 01:24:49.900 kid1| Acl.cc(28) AuthenticateAcl: SslBumped request: It 
is an encapsulated request do not authenticate
2013/08/21 01:24:49.900 kid1| UserRequest.cc(93) valid: Validated. 
Auth::UserRequest '0x7f0ce933b8c0'.
2013/08/21 01:24:49.900 kid1| User.cc(38) authenticated: User not authenticated 
or credentials need rechecking.

Does this mean it's impossible to authenticate a SslBumped request.

Yes it does. Sort of.

  What's strange is the access log is showing the request with a username which 
indicates the request was authenticated!

Proxy authentication can be done on the CONNECT tunnel request which was bumped. If that CONNECT is authenticated then each internally bumped sub-request is given those same credentials. If it is not authenticated then all sub-requests are treated as un-authenticated like you see above.

Also when the user refreshes the problem usually disappears.

Currently the authentication helper was set to 6 minutes (for testing) and I 
have increased it to 60 minutes.

The credentials should be "pinned" to the CONNECT tunnel and not expire for any of the sub-requests. If you find them expiring that is a bug. Please ensure that you are using the latest 3.3 series release and provide details of it in bugzilla.

Amos

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