* [PATCH 1/1] curl: Security Advisory - curl - CVE-2014-3613
2014-10-24 9:20 [PATCH 0/1] curl: Security Advisory - curl - CVE-2014-3613 Chong Lu
@ 2014-10-24 9:20 ` Chong Lu
2014-10-24 22:16 ` Burton, Ross
0 siblings, 1 reply; 5+ messages in thread
From: Chong Lu @ 2014-10-24 9:20 UTC (permalink / raw)
To: openembedded-core
By not detecting and rejecting domain names for partial literal IP addresses
properly when parsing received HTTP cookies, libcurl can be fooled to both
sending cookies to wrong sites and into allowing arbitrary sites to set cookies
for others.
Signed-off-by: Chong Lu <Chong.Lu@windriver.com>
---
meta/recipes-support/curl/curl/CVE-2014-3613.patch | 269 +++++++++++++++++++++
meta/recipes-support/curl/curl_7.37.1.bb | 1 +
2 files changed, 270 insertions(+)
create mode 100644 meta/recipes-support/curl/curl/CVE-2014-3613.patch
diff --git a/meta/recipes-support/curl/curl/CVE-2014-3613.patch b/meta/recipes-support/curl/curl/CVE-2014-3613.patch
new file mode 100644
index 0000000..3e2fee0
--- /dev/null
+++ b/meta/recipes-support/curl/curl/CVE-2014-3613.patch
@@ -0,0 +1,269 @@
+From 545e322cc8c383ccdfb4ad85a1634c2b719a1adf 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] 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.
+
+CVE-2014-3613
+
+Bug: http://curl.haxx.se/docs/adv_20140910A.html
+
+Upstream-Status: Backport
+
+Signed-off-by: Chong Lu <Chong.Lu@windriver.com>
+---
+ 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$/) {print "Test only works for HOSTIPs ending with .0.0.1"; exit(1)}'
+ </precheck>
+--
+2.1.0
+
diff --git a/meta/recipes-support/curl/curl_7.37.1.bb b/meta/recipes-support/curl/curl_7.37.1.bb
index 39ded80..1147675 100644
--- a/meta/recipes-support/curl/curl_7.37.1.bb
+++ b/meta/recipes-support/curl/curl_7.37.1.bb
@@ -7,6 +7,7 @@ LIC_FILES_CHKSUM = "file://COPYING;beginline=7;md5=3a34942f4ae3fbf1a303160714e66
SRC_URI = "http://curl.haxx.se/download/curl-${PV}.tar.bz2 \
file://pkgconfig_fix.patch \
+ file://CVE-2014-3613.patch \
"
# curl likes to set -g0 in CFLAGS, so we stop it
--
1.9.1
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