File curl-CVE-2014-3613.patch of Package curl

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File curl-CVE-2014-3613.patch of Package curl (Revision d9c809725525de1a69cfed5d6c56452f)

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From eac573ea9c368f5e3c07de4d5ec5c5d0f84a021a Mon Sep 17 00:00:00 2001
From: Tim Ruehsen <tim.ruehsen@gmx.de>
Date: Tue, 19 Aug 2014 21:01:28 +0200
Subject: [PATCH 1/2] cookies: only use full host matches for hosts used as IP
 address

By not detecting and rejecting domain names for partial literal IP
addresses properly when parsing received HTTP cookies, libcurl can be
fooled to both send cookies to wrong sites and to allow arbitrary sites
to set cookies for others.

Bug: http://curl.haxx.se/docs/adv_20140910.html
---
 lib/cookie.c        | 50 ++++++++++++++++++++++++++++++++++++++----------
 tests/data/test1105 |  3 +--
 tests/data/test31   | 55 +++++++++++++++++++++++++++--------------------------
 tests/data/test8    |  3 ++-
 4 files changed, 71 insertions(+), 40 deletions(-)

diff --git a/lib/cookie.c b/lib/cookie.c
index 0590643..46904ac 100644
--- a/lib/cookie.c
+++ b/lib/cookie.c
@@ -93,10 +93,11 @@ Example set of cookies:
 #include "curl_memory.h"
 #include "share.h"
 #include "strtoofft.h"
 #include "rawstr.h"
 #include "curl_memrchr.h"
+#include "inet_pton.h"
 
 /* The last #include file should be: */
 #include "memdebug.h"
 
 static void freecookie(struct Cookie *co)
@@ -317,10 +318,32 @@ static void remove_expired(struct CookieInfo *cookies)
     }
     co = nx;
   }
 }
 
+/*
+ * Return true if the given string is an IP(v4|v6) address.
+ */
+static bool isip(const char *domain)
+{
+  struct in_addr addr;
+#ifdef ENABLE_IPV6
+  struct in6_addr addr6;
+#endif
+
+  if(Curl_inet_pton(AF_INET, domain, &addr)
+#ifdef ENABLE_IPV6
+     || Curl_inet_pton(AF_INET6, domain, &addr6)
+#endif
+    ) {
+    /* domain name given as IP address */
+    return TRUE;
+  }
+
+  return FALSE;
+}
+
 /****************************************************************************
  *
  * Curl_cookie_add()
  *
  * Add a single cookie line to the cookie keeping object.
@@ -437,28 +460,31 @@ Curl_cookie_add(struct SessionHandle *data,
             badcookie = TRUE; /* out of memory bad */
             break;
           }
         }
         else if(Curl_raw_equal("domain", name)) {
+          bool is_ip;
+
           /* Now, we make sure that our host is within the given domain,
              or the given domain is not valid and thus cannot be set. */
 
           if('.' == whatptr[0])
             whatptr++; /* ignore preceding dot */
 
-          if(!domain || tailmatch(whatptr, domain)) {
-            const char *tailptr=whatptr;
-            if(tailptr[0] == '.')
-              tailptr++;
-            strstore(&co->domain, tailptr); /* don't prefix w/dots
-                                               internally */
+          is_ip = isip(domain ? domain : whatptr);
+
+          if(!domain
+             || (is_ip && !strcmp(whatptr, domain))
+             || (!is_ip && tailmatch(whatptr, domain))) {
+            strstore(&co->domain, whatptr);
             if(!co->domain) {
               badcookie = TRUE;
               break;
             }
-            co->tailmatch=TRUE; /* we always do that if the domain name was
-                                   given */
+            if(!is_ip)
+              co->tailmatch=TRUE; /* we always do that if the domain name was
+                                     given */
           }
           else {
             /* we did not get a tailmatch and then the attempted set domain
                is not a domain to which the current host belongs. Mark as
                bad. */
@@ -966,17 +992,21 @@ struct Cookie *Curl_cookie_getlist(struct CookieInfo *c,
   struct Cookie *newco;
   struct Cookie *co;
   time_t now = time(NULL);
   struct Cookie *mainco=NULL;
   size_t matches = 0;
+  bool is_ip;
 
   if(!c || !c->cookies)
     return NULL; /* no cookie struct or no cookies in the struct */
 
   /* at first, remove expired cookies */
   remove_expired(c);
 
+  /* check if host is an IP(v4|v6) address */
+  is_ip = isip(host);
+
   co = c->cookies;
 
   while(co) {
     /* only process this cookie if it is not expired or had no expire
        date AND that if the cookie requires we're secure we must only
@@ -984,12 +1014,12 @@ struct Cookie *Curl_cookie_getlist(struct CookieInfo *c,
     if((!co->expires || (co->expires > now)) &&
        (co->secure?secure:TRUE)) {
 
       /* now check if the domain is correct */
       if(!co->domain ||
-         (co->tailmatch && tailmatch(co->domain, host)) ||
-         (!co->tailmatch && Curl_raw_equal(host, co->domain)) ) {
+         (co->tailmatch && !is_ip && tailmatch(co->domain, host)) ||
+         ((!co->tailmatch || is_ip) && Curl_raw_equal(host, co->domain)) ) {
         /* the right part of the host matches the domain stuff in the
            cookie data */
 
         /* now check the left part of the path with the cookies path
            requirement */
diff --git a/tests/data/test1105 b/tests/data/test1105
index 25f194c..9564775 100644
--- a/tests/data/test1105
+++ b/tests/data/test1105
@@ -57,10 +57,9 @@ userid=myname&password=mypassword
 # Netscape HTTP Cookie File
 # http://curl.haxx.se/docs/http-cookies.html
 # This file was generated by libcurl! Edit at your own risk.
 
 127.0.0.1	FALSE	/we/want/	FALSE	0	foobar	name
-.127.0.0.1	TRUE	"/silly/"	FALSE	0	mismatch	this
-.0.0.1	TRUE	/	FALSE	0	partmatch	present
+127.0.0.1	FALSE	"/silly/"	FALSE	0	mismatch	this
 </file>
 </verify>
 </testcase>
diff --git a/tests/data/test31 b/tests/data/test31
index 38af83b..dfcac04 100644
--- a/tests/data/test31
+++ b/tests/data/test31
@@ -49,11 +49,12 @@ Set-Cookie: nodomainnovalue
 Set-Cookie:   nodomain=value; expires=Fri Feb 2 11:56:27 GMT 2035
 Set-Cookie: novalue; domain=reallysilly
 Set-Cookie: test=yes; domain=foo.com; expires=Sat Feb 2 11:56:27 GMT 2030
 Set-Cookie: test2=yes; domain=se; expires=Sat Feb 2 11:56:27 GMT 2030
 Set-Cookie: magic=yessir; path=/silly/; HttpOnly
-Set-Cookie: blexp=yesyes; domain=.0.0.1; domain=.0.0.1; expiry=totally bad;
+Set-Cookie: blexp=yesyes; domain=127.0.0.1; domain=127.0.0.1; expiry=totally bad;
+Set-Cookie: partialip=nono; domain=.0.0.1;
 
 boo
 </data>
 </reply>
 
@@ -93,36 +94,36 @@ Accept: */*
 <file name="log/jar31.txt" mode="text">
 # Netscape HTTP Cookie File
 # http://curl.haxx.se/docs/http-cookies.html
 # This file was generated by libcurl! Edit at your own risk.
 
-.127.0.0.1	TRUE	/silly/	FALSE	0	ismatch	this
-.127.0.0.1	TRUE	/overwrite	FALSE	0	overwrite	this2
-.127.0.0.1	TRUE	/secure1/	TRUE	0	sec1value	secure1
-.127.0.0.1	TRUE	/secure2/	TRUE	0	sec2value	secure2
-.127.0.0.1	TRUE	/secure3/	TRUE	0	sec3value	secure3
-.127.0.0.1	TRUE	/secure4/	TRUE	0	sec4value	secure4
-.127.0.0.1	TRUE	/secure5/	TRUE	0	sec5value	secure5
-.127.0.0.1	TRUE	/secure6/	TRUE	0	sec6value	secure6
-.127.0.0.1	TRUE	/secure7/	TRUE	0	sec7value	secure7
-.127.0.0.1	TRUE	/secure8/	TRUE	0	sec8value	secure8
-.127.0.0.1	TRUE	/secure9/	TRUE	0	secure	very1
-#HttpOnly_.127.0.0.1	TRUE	/p1/	FALSE	0	httpo1	value1
-#HttpOnly_.127.0.0.1	TRUE	/p2/	FALSE	0	httpo2	value2
-#HttpOnly_.127.0.0.1	TRUE	/p3/	FALSE	0	httpo3	value3
-#HttpOnly_.127.0.0.1	TRUE	/p4/	FALSE	0	httpo4	value4
-#HttpOnly_.127.0.0.1	TRUE	/p4/	FALSE	0	httponly	myvalue1
-#HttpOnly_.127.0.0.1	TRUE	/p4/	TRUE	0	httpandsec	myvalue2
-#HttpOnly_.127.0.0.1	TRUE	/p4/	TRUE	0	httpandsec2	myvalue3
-#HttpOnly_.127.0.0.1	TRUE	/p4/	TRUE	0	httpandsec3	myvalue4
-#HttpOnly_.127.0.0.1	TRUE	/p4/	TRUE	0	httpandsec4	myvalue5
-#HttpOnly_.127.0.0.1	TRUE	/p4/	TRUE	0	httpandsec5	myvalue6
-#HttpOnly_.127.0.0.1	TRUE	/p4/	TRUE	0	httpandsec6	myvalue7
-#HttpOnly_.127.0.0.1	TRUE	/p4/	TRUE	0	httpandsec7	myvalue8
-#HttpOnly_.127.0.0.1	TRUE	/p4/	TRUE	0	httpandsec8	myvalue9
-.127.0.0.1	TRUE	/	FALSE	0	partmatch	present
+127.0.0.1	FALSE	/silly/	FALSE	0	ismatch	this
+127.0.0.1	FALSE	/overwrite	FALSE	0	overwrite	this2
+127.0.0.1	FALSE	/secure1/	TRUE	0	sec1value	secure1
+127.0.0.1	FALSE	/secure2/	TRUE	0	sec2value	secure2
+127.0.0.1	FALSE	/secure3/	TRUE	0	sec3value	secure3
+127.0.0.1	FALSE	/secure4/	TRUE	0	sec4value	secure4
+127.0.0.1	FALSE	/secure5/	TRUE	0	sec5value	secure5
+127.0.0.1	FALSE	/secure6/	TRUE	0	sec6value	secure6
+127.0.0.1	FALSE	/secure7/	TRUE	0	sec7value	secure7
+127.0.0.1	FALSE	/secure8/	TRUE	0	sec8value	secure8
+127.0.0.1	FALSE	/secure9/	TRUE	0	secure	very1
+#HttpOnly_127.0.0.1	FALSE	/p1/	FALSE	0	httpo1	value1
+#HttpOnly_127.0.0.1	FALSE	/p2/	FALSE	0	httpo2	value2
+#HttpOnly_127.0.0.1	FALSE	/p3/	FALSE	0	httpo3	value3
+#HttpOnly_127.0.0.1	FALSE	/p4/	FALSE	0	httpo4	value4
+#HttpOnly_127.0.0.1	FALSE	/p4/	FALSE	0	httponly	myvalue1
+#HttpOnly_127.0.0.1	FALSE	/p4/	TRUE	0	httpandsec	myvalue2
+#HttpOnly_127.0.0.1	FALSE	/p4/	TRUE	0	httpandsec2	myvalue3
+#HttpOnly_127.0.0.1	FALSE	/p4/	TRUE	0	httpandsec3	myvalue4
+#HttpOnly_127.0.0.1	FALSE	/p4/	TRUE	0	httpandsec4	myvalue5
+#HttpOnly_127.0.0.1	FALSE	/p4/	TRUE	0	httpandsec5	myvalue6
+#HttpOnly_127.0.0.1	FALSE	/p4/	TRUE	0	httpandsec6	myvalue7
+#HttpOnly_127.0.0.1	FALSE	/p4/	TRUE	0	httpandsec7	myvalue8
+#HttpOnly_127.0.0.1	FALSE	/p4/	TRUE	0	httpandsec8	myvalue9
+127.0.0.1	FALSE	/	FALSE	0	partmatch	present
 127.0.0.1	FALSE	/we/want/	FALSE	2054030187	nodomain	value
 #HttpOnly_127.0.0.1	FALSE	/silly/	FALSE	0	magic	yessir
-.0.0.1	TRUE	/we/want/	FALSE	0	blexp	yesyes
+127.0.0.1	FALSE	/we/want/	FALSE	0	blexp	yesyes
 </file>
 </verify>
 </testcase>
diff --git a/tests/data/test8 b/tests/data/test8
index 4d54541..030fd55 100644
--- a/tests/data/test8
+++ b/tests/data/test8
@@ -40,11 +40,12 @@ Set-Cookie: mismatch=this; domain=%HOSTIP; path="/silly/";
 Set-Cookie: partmatch=present; domain=.0.0.1; path=/w;
 Set-Cookie: duplicate=test; domain=.0.0.1; domain=.0.0.1; path=/donkey;
 Set-Cookie: cookie=yes; path=/we;
 Set-Cookie: cookie=perhaps; path=/we/want;
 Set-Cookie: nocookie=yes; path=/WE;
-Set-Cookie: blexp=yesyes; domain=.0.0.1; domain=.0.0.1; expiry=totally bad;
+Set-Cookie: blexp=yesyes; domain=%HOSTIP; domain=%HOSTIP; expiry=totally bad;
+Set-Cookie: partialip=nono; domain=.0.0.1;
 
 </file>
 <precheck>
 perl -e 'if ("%HOSTIP" !~ /\.0\.0\.1$/) {print "Test only works for HOSTIPs ending with .0.0.1"; exit(1)}'
 </precheck>
-- 
2.1.0

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File curl-CVE-2014-3613.patch of Package curl (Revision d9c809725525de1a69cfed5d6c56452f)

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