mod_proxy/4793: mod_proxy incorrectly caches responses which contain a set-cookie

[Victor Pulver <vi...@latimes.com>]

>Number:         4793
>Category:       mod_proxy
>Synopsis:       mod_proxy incorrectly caches responses which contain a set-cookie
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    apache
>State:          open
>Class:          sw-bug
>Submitter-Id:   apache
>Arrival-Date:   Thu Jul 29 10:50:01 PDT 1999
>Last-Modified:
>Originator:     victor.pulver@latimes.com
>Organization:
apache
>Release:        1.3.6
>Environment:
SunOS latimes10.su-colo.bbnplanet.com 5.6 Generic_105181-08 sun4u sparc SUNW,Ultra-Enterprise
>Description:
Responses which contain a set-cookie should not be cached by a proxy server 
(quoting from http://home.netscape.com/newsref/std/cookie_spec.html :
 When caching HTTP, as a proxy server might do, the Set-cookie response header should never be cached. )

>How-To-Repeat:

>Fix:
In file porxy_cache.c, at approximately line 880:

after the line

	ap_table_get(r->headers_in, "Authorization") != NULL ||

add the line

	ap_table_get(resp_hdrs, "Set-Cookie") != NULL ||
	
>Audit-Trail:
>Unformatted:
[In order for any reply to be added to the PR database, you need]
[to include <ap...@Apache.Org> in the Cc line and make sure the]
[subject line starts with the report component and number, with ]
[or without any 'Re:' prefixes (such as "general/1098:" or      ]
["Re: general/1098:").  If the subject doesn't match this       ]
[pattern, your message will be misfiled and ignored.  The       ]
["apbugs" address is not added to the Cc line of messages from  ]
[the database automatically because of the potential for mail   ]
[loops.  If you do not include this Cc, your reply may be ig-   ]
[nored unless you are responding to an explicit request from a  ]
[developer.  Reply only with text; DO NOT SEND ATTACHMENTS!     ]