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authorFelix Fietkau <nbd@openwrt.org>2012-10-10 12:32:29 +0000
committerFelix Fietkau <nbd@openwrt.org>2012-10-10 12:32:29 +0000
commit405e21d16731b2764ab82aaaadcf36a813b105f7 (patch)
treec6f9a8402389a5081519b91ce62c4a8cafcb8917 /package/network/services/dropbear/patches
parentd0ec348ded6f715b43b396b06ccb10599b37969d (diff)
downloadmtk-20170518-405e21d16731b2764ab82aaaadcf36a813b105f7.zip
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packages: sort network related packages into package/network/
SVN-Revision: 33688
Diffstat (limited to 'package/network/services/dropbear/patches')
-rw-r--r--package/network/services/dropbear/patches/100-pubkey_path.patch91
-rw-r--r--package/network/services/dropbear/patches/110-change_user.patch18
-rw-r--r--package/network/services/dropbear/patches/120-openwrt_options.patch67
-rw-r--r--package/network/services/dropbear/patches/130-ssh_ignore_o_and_x_args.patch21
-rw-r--r--package/network/services/dropbear/patches/140-disable_assert.patch14
-rw-r--r--package/network/services/dropbear/patches/150-dbconvert_standalone.patch14
-rw-r--r--package/network/services/dropbear/patches/200-lcrypt_bsdfix.patch29
-rw-r--r--package/network/services/dropbear/patches/300-ipv6_addr_port_split.patch11
-rw-r--r--package/network/services/dropbear/patches/400-CVE-2012-0920.patch91
-rw-r--r--package/network/services/dropbear/patches/500-set-default-path.patch11
10 files changed, 367 insertions, 0 deletions
diff --git a/package/network/services/dropbear/patches/100-pubkey_path.patch b/package/network/services/dropbear/patches/100-pubkey_path.patch
new file mode 100644
index 0000000..c1802f5
--- /dev/null
+++ b/package/network/services/dropbear/patches/100-pubkey_path.patch
@@ -0,0 +1,91 @@
+--- a/svr-authpubkey.c
++++ b/svr-authpubkey.c
+@@ -209,17 +209,21 @@ static int checkpubkey(unsigned char* al
+ goto out;
+ }
+
+- /* we don't need to check pw and pw_dir for validity, since
+- * its been done in checkpubkeyperms. */
+- len = strlen(ses.authstate.pw_dir);
+- /* allocate max required pathname storage,
+- * = path + "/.ssh/authorized_keys" + '\0' = pathlen + 22 */
+- filename = m_malloc(len + 22);
+- snprintf(filename, len + 22, "%s/.ssh/authorized_keys",
+- ses.authstate.pw_dir);
+-
+- /* open the file */
+- authfile = fopen(filename, "r");
++ if (ses.authstate.pw_uid != 0) {
++ /* we don't need to check pw and pw_dir for validity, since
++ * its been done in checkpubkeyperms. */
++ len = strlen(ses.authstate.pw_dir);
++ /* allocate max required pathname storage,
++ * = path + "/.ssh/authorized_keys" + '\0' = pathlen + 22 */
++ filename = m_malloc(len + 22);
++ snprintf(filename, len + 22, "%s/.ssh/authorized_keys",
++ ses.authstate.pw_dir);
++
++ /* open the file */
++ authfile = fopen(filename, "r");
++ } else {
++ authfile = fopen("/etc/dropbear/authorized_keys","r");
++ }
+ if (authfile == NULL) {
+ goto out;
+ }
+@@ -372,26 +376,35 @@ static int checkpubkeyperms() {
+ goto out;
+ }
+
+- /* allocate max required pathname storage,
+- * = path + "/.ssh/authorized_keys" + '\0' = pathlen + 22 */
+- filename = m_malloc(len + 22);
+- strncpy(filename, ses.authstate.pw_dir, len+1);
+-
+- /* check ~ */
+- if (checkfileperm(filename) != DROPBEAR_SUCCESS) {
+- goto out;
+- }
+-
+- /* check ~/.ssh */
+- strncat(filename, "/.ssh", 5); /* strlen("/.ssh") == 5 */
+- if (checkfileperm(filename) != DROPBEAR_SUCCESS) {
+- goto out;
+- }
+-
+- /* now check ~/.ssh/authorized_keys */
+- strncat(filename, "/authorized_keys", 16);
+- if (checkfileperm(filename) != DROPBEAR_SUCCESS) {
+- goto out;
++ if (ses.authstate.pw_uid == 0) {
++ if (checkfileperm("/etc/dropbear") != DROPBEAR_SUCCESS) {
++ goto out;
++ }
++ if (checkfileperm("/etc/dropbear/authorized_keys") != DROPBEAR_SUCCESS) {
++ goto out;
++ }
++ } else {
++ /* allocate max required pathname storage,
++ * = path + "/.ssh/authorized_keys" + '\0' = pathlen + 22 */
++ filename = m_malloc(len + 22);
++ strncpy(filename, ses.authstate.pw_dir, len+1);
++
++ /* check ~ */
++ if (checkfileperm(filename) != DROPBEAR_SUCCESS) {
++ goto out;
++ }
++
++ /* check ~/.ssh */
++ strncat(filename, "/.ssh", 5); /* strlen("/.ssh") == 5 */
++ if (checkfileperm(filename) != DROPBEAR_SUCCESS) {
++ goto out;
++ }
++
++ /* now check ~/.ssh/authorized_keys */
++ strncat(filename, "/authorized_keys", 16);
++ if (checkfileperm(filename) != DROPBEAR_SUCCESS) {
++ goto out;
++ }
+ }
+
+ /* file looks ok, return success */
diff --git a/package/network/services/dropbear/patches/110-change_user.patch b/package/network/services/dropbear/patches/110-change_user.patch
new file mode 100644
index 0000000..55747bc
--- /dev/null
+++ b/package/network/services/dropbear/patches/110-change_user.patch
@@ -0,0 +1,18 @@
+--- a/svr-chansession.c
++++ b/svr-chansession.c
+@@ -884,12 +884,12 @@ static void execchild(void *user_data) {
+ /* We can only change uid/gid as root ... */
+ if (getuid() == 0) {
+
+- if ((setgid(ses.authstate.pw_gid) < 0) ||
++ if ((ses.authstate.pw_gid != 0) && ((setgid(ses.authstate.pw_gid) < 0) ||
+ (initgroups(ses.authstate.pw_name,
+- ses.authstate.pw_gid) < 0)) {
++ ses.authstate.pw_gid) < 0))) {
+ dropbear_exit("Error changing user group");
+ }
+- if (setuid(ses.authstate.pw_uid) < 0) {
++ if ((ses.authstate.pw_uid != 0) && (setuid(ses.authstate.pw_uid) < 0)) {
+ dropbear_exit("Error changing user");
+ }
+ } else {
diff --git a/package/network/services/dropbear/patches/120-openwrt_options.patch b/package/network/services/dropbear/patches/120-openwrt_options.patch
new file mode 100644
index 0000000..42204aa
--- /dev/null
+++ b/package/network/services/dropbear/patches/120-openwrt_options.patch
@@ -0,0 +1,67 @@
+--- a/options.h
++++ b/options.h
+@@ -38,7 +38,7 @@
+ * Both of these flags can be defined at once, don't compile without at least
+ * one of them. */
+ #define NON_INETD_MODE
+-#define INETD_MODE
++/*#define INETD_MODE*/
+
+ /* Setting this disables the fast exptmod bignum code. It saves ~5kB, but is
+ * perhaps 20% slower for pubkey operations (it is probably worth experimenting
+@@ -49,7 +49,7 @@
+ several kB in binary size however will make the symmetrical ciphers and hashes
+ slower, perhaps by 50%. Recommended for small systems that aren't doing
+ much traffic. */
+-/*#define DROPBEAR_SMALL_CODE*/
++#define DROPBEAR_SMALL_CODE
+
+ /* Enable X11 Forwarding - server only */
+ #define ENABLE_X11FWD
+@@ -78,7 +78,7 @@ much traffic. */
+
+ /* Enable "Netcat mode" option. This will forward standard input/output
+ * to a remote TCP-forwarded connection */
+-#define ENABLE_CLI_NETCAT
++/*#define ENABLE_CLI_NETCAT*/
+
+ /* Encryption - at least one required.
+ * Protocol RFC requires 3DES and recommends AES128 for interoperability.
+@@ -89,8 +89,8 @@ much traffic. */
+ #define DROPBEAR_AES256
+ /* Compiling in Blowfish will add ~6kB to runtime heap memory usage */
+ /*#define DROPBEAR_BLOWFISH*/
+-#define DROPBEAR_TWOFISH256
+-#define DROPBEAR_TWOFISH128
++/*#define DROPBEAR_TWOFISH256
++#define DROPBEAR_TWOFISH128*/
+
+ /* Enable "Counter Mode" for ciphers. This is more secure than normal
+ * CBC mode against certain attacks. This adds around 1kB to binary
+@@ -110,7 +110,7 @@ much traffic. */
+ * If you disable MD5, Dropbear will fall back to SHA1 fingerprints,
+ * which are not the standard form. */
+ #define DROPBEAR_SHA1_HMAC
+-#define DROPBEAR_SHA1_96_HMAC
++/*#define DROPBEAR_SHA1_96_HMAC*/
+ #define DROPBEAR_MD5_HMAC
+
+ /* Hostkey/public key algorithms - at least one required, these are used
+@@ -148,7 +148,7 @@ much traffic. */
+
+ /* Whether to print the message of the day (MOTD). This doesn't add much code
+ * size */
+-#define DO_MOTD
++/*#define DO_MOTD*/
+
+ /* The MOTD file path */
+ #ifndef MOTD_FILENAME
+@@ -192,7 +192,7 @@ much traffic. */
+ * note that it will be provided for all "hidden" client-interactive
+ * style prompts - if you want something more sophisticated, use
+ * SSH_ASKPASS instead. Comment out this var to remove this functionality.*/
+-#define DROPBEAR_PASSWORD_ENV "DROPBEAR_PASSWORD"
++/*#define DROPBEAR_PASSWORD_ENV "DROPBEAR_PASSWORD"*/
+
+ /* Define this (as well as ENABLE_CLI_PASSWORD_AUTH) to allow the use of
+ * a helper program for the ssh client. The helper program should be
diff --git a/package/network/services/dropbear/patches/130-ssh_ignore_o_and_x_args.patch b/package/network/services/dropbear/patches/130-ssh_ignore_o_and_x_args.patch
new file mode 100644
index 0000000..93647a9
--- /dev/null
+++ b/package/network/services/dropbear/patches/130-ssh_ignore_o_and_x_args.patch
@@ -0,0 +1,21 @@
+--- a/cli-runopts.c
++++ b/cli-runopts.c
+@@ -287,6 +287,10 @@ void cli_getopts(int argc, char ** argv)
+ debug_trace = 1;
+ break;
+ #endif
++ case 'o':
++ next = &dummy;
++ case 'x':
++ break;
+ case 'F':
+ case 'e':
+ case 'c':
+@@ -298,7 +302,6 @@ void cli_getopts(int argc, char ** argv)
+ #ifndef ENABLE_CLI_LOCALTCPFWD
+ case 'L':
+ #endif
+- case 'o':
+ case 'b':
+ next = &dummy;
+ default:
diff --git a/package/network/services/dropbear/patches/140-disable_assert.patch b/package/network/services/dropbear/patches/140-disable_assert.patch
new file mode 100644
index 0000000..e993763
--- /dev/null
+++ b/package/network/services/dropbear/patches/140-disable_assert.patch
@@ -0,0 +1,14 @@
+--- a/dbutil.h
++++ b/dbutil.h
+@@ -94,6 +94,10 @@ int m_str_to_uint(const char* str, unsig
+ #define DEF_MP_INT(X) mp_int X = {0, 0, 0, NULL}
+
+ /* Dropbear assertion */
+-#define dropbear_assert(X) do { if (!(X)) { fail_assert(#X, __FILE__, __LINE__); } } while (0)
++#ifndef DROPBEAR_ASSERT_ENABLED
++#define DROPBEAR_ASSERT_ENABLED 0
++#endif
++
++#define dropbear_assert(X) do { if (DROPBEAR_ASSERT_ENABLED && !(X)) { fail_assert(#X, __FILE__, __LINE__); } } while (0)
+
+ #endif /* _DBUTIL_H_ */
diff --git a/package/network/services/dropbear/patches/150-dbconvert_standalone.patch b/package/network/services/dropbear/patches/150-dbconvert_standalone.patch
new file mode 100644
index 0000000..3e0b008
--- /dev/null
+++ b/package/network/services/dropbear/patches/150-dbconvert_standalone.patch
@@ -0,0 +1,14 @@
+--- a/options.h
++++ b/options.h
+@@ -5,6 +5,11 @@
+ #ifndef _OPTIONS_H_
+ #define _OPTIONS_H_
+
++#if !defined(DROPBEAR_CLIENT) && !defined(DROPBEAR_SERVER)
++#define DROPBEAR_SERVER
++#define DROPBEAR_CLIENT
++#endif
++
+ /******************************************************************
+ * Define compile-time options below - the "#ifndef DROPBEAR_XXX .... #endif"
+ * parts are to allow for commandline -DDROPBEAR_XXX options etc.
diff --git a/package/network/services/dropbear/patches/200-lcrypt_bsdfix.patch b/package/network/services/dropbear/patches/200-lcrypt_bsdfix.patch
new file mode 100644
index 0000000..57eb967
--- /dev/null
+++ b/package/network/services/dropbear/patches/200-lcrypt_bsdfix.patch
@@ -0,0 +1,29 @@
+--- a/Makefile.in
++++ b/Makefile.in
+@@ -56,7 +56,7 @@ HEADERS=options.h dbutil.h session.h pac
+ loginrec.h atomicio.h x11fwd.h agentfwd.h tcpfwd.h compat.h \
+ listener.h fake-rfc2553.h
+
+-dropbearobjs=$(COMMONOBJS) $(CLISVROBJS) $(SVROBJS) @CRYPTLIB@
++dropbearobjs=$(COMMONOBJS) $(CLISVROBJS) $(SVROBJS)
+ dbclientobjs=$(COMMONOBJS) $(CLISVROBJS) $(CLIOBJS)
+ dropbearkeyobjs=$(COMMONOBJS) $(KEYOBJS)
+ dropbearconvertobjs=$(COMMONOBJS) $(CONVERTOBJS)
+@@ -77,7 +77,7 @@ STRIP=@STRIP@
+ INSTALL=@INSTALL@
+ CPPFLAGS=@CPPFLAGS@
+ CFLAGS+=-I. -I$(srcdir) $(CPPFLAGS) @CFLAGS@
+-LIBS+=@LIBS@
++LIBS+=@CRYPTLIB@ @LIBS@
+ LDFLAGS=@LDFLAGS@
+
+ EXEEXT=@EXEEXT@
+@@ -169,7 +169,7 @@ scp: $(SCPOBJS) $(HEADERS) Makefile
+ # multi-binary compilation.
+ MULTIOBJS=
+ ifeq ($(MULTI),1)
+- MULTIOBJS=dbmulti.o $(sort $(foreach prog, $(PROGRAMS), $($(prog)objs))) @CRYPTLIB@
++ MULTIOBJS=dbmulti.o $(sort $(foreach prog, $(PROGRAMS), $($(prog)objs)))
+ CFLAGS+=$(addprefix -DDBMULTI_, $(PROGRAMS)) -DDROPBEAR_MULTI
+ endif
+
diff --git a/package/network/services/dropbear/patches/300-ipv6_addr_port_split.patch b/package/network/services/dropbear/patches/300-ipv6_addr_port_split.patch
new file mode 100644
index 0000000..7da435a
--- /dev/null
+++ b/package/network/services/dropbear/patches/300-ipv6_addr_port_split.patch
@@ -0,0 +1,11 @@
+--- a/svr-runopts.c
++++ b/svr-runopts.c
+@@ -325,7 +325,7 @@ static void addportandaddress(char* spec
+ myspec = m_strdup(spec);
+
+ /* search for ':', that separates address and port */
+- svr_opts.ports[svr_opts.portcount] = strchr(myspec, ':');
++ svr_opts.ports[svr_opts.portcount] = strrchr(myspec, ':');
+
+ if (svr_opts.ports[svr_opts.portcount] == NULL) {
+ /* no ':' -> the whole string specifies just a port */
diff --git a/package/network/services/dropbear/patches/400-CVE-2012-0920.patch b/package/network/services/dropbear/patches/400-CVE-2012-0920.patch
new file mode 100644
index 0000000..164909f
--- /dev/null
+++ b/package/network/services/dropbear/patches/400-CVE-2012-0920.patch
@@ -0,0 +1,91 @@
+
+# HG changeset patch
+# User Matt Johnston <matt@ucc.asn.au>
+# Date 1322947885 -28800
+# Node ID 818108bf7749bfecd4715a30e2583aac9dbe25e8
+# Parent 5e8d84f3ee7256d054ecf7e9f248765ccaa7f24f
+- Fix use-after-free if multiple command requests were sent. Move
+the original_command into chansess struct since that makes more sense
+
+--- a/auth.h
++++ b/auth.h
+@@ -133,7 +133,6 @@ struct PubKeyOptions {
+ int no_pty_flag;
+ /* "command=" option. */
+ unsigned char * forced_command;
+- unsigned char * original_command;
+ };
+ #endif
+
+--- a/chansession.h
++++ b/chansession.h
+@@ -69,6 +69,10 @@ struct ChanSess {
+ char * agentfile;
+ char * agentdir;
+ #endif
++
++#ifdef ENABLE_SVR_PUBKEY_OPTIONS
++ char *original_command;
++#endif
+ };
+
+ struct ChildPid {
+--- a/svr-authpubkeyoptions.c
++++ b/svr-authpubkeyoptions.c
+@@ -92,14 +92,15 @@ int svr_pubkey_allows_pty() {
+ * by any 'command' public key option. */
+ void svr_pubkey_set_forced_command(struct ChanSess *chansess) {
+ if (ses.authstate.pubkey_options) {
+- ses.authstate.pubkey_options->original_command = chansess->cmd;
+- if (!chansess->cmd)
+- {
+- ses.authstate.pubkey_options->original_command = m_strdup("");
++ if (chansess->cmd) {
++ /* original_command takes ownership */
++ chansess->original_command = chansess->cmd;
++ } else {
++ chansess->original_command = m_strdup("");
+ }
+- chansess->cmd = ses.authstate.pubkey_options->forced_command;
++ chansess->cmd = m_strdup(ses.authstate.pubkey_options->forced_command);
+ #ifdef LOG_COMMANDS
+- dropbear_log(LOG_INFO, "Command forced to '%s'", ses.authstate.pubkey_options->original_command);
++ dropbear_log(LOG_INFO, "Command forced to '%s'", chansess->original_command);
+ #endif
+ }
+ }
+--- a/svr-chansession.c
++++ b/svr-chansession.c
+@@ -217,6 +217,8 @@ static int newchansess(struct Channel *c
+
+ struct ChanSess *chansess;
+
++ TRACE(("new chansess %p", channel))
++
+ dropbear_assert(channel->typedata == NULL);
+
+ chansess = (struct ChanSess*)m_malloc(sizeof(struct ChanSess));
+@@ -279,6 +281,10 @@ static void closechansess(struct Channel
+ m_free(chansess->cmd);
+ m_free(chansess->term);
+
++#ifdef ENABLE_SVR_PUBKEY_OPTIONS
++ m_free(chansess->original_command);
++#endif
++
+ if (chansess->tty) {
+ /* write the utmp/wtmp login record */
+ li = chansess_login_alloc(chansess);
+@@ -924,10 +930,8 @@ static void execchild(void *user_data) {
+ }
+
+ #ifdef ENABLE_SVR_PUBKEY_OPTIONS
+- if (ses.authstate.pubkey_options &&
+- ses.authstate.pubkey_options->original_command) {
+- addnewvar("SSH_ORIGINAL_COMMAND",
+- ses.authstate.pubkey_options->original_command);
++ if (chansess->original_command) {
++ addnewvar("SSH_ORIGINAL_COMMAND", chansess->original_command);
+ }
+ #endif
+
diff --git a/package/network/services/dropbear/patches/500-set-default-path.patch b/package/network/services/dropbear/patches/500-set-default-path.patch
new file mode 100644
index 0000000..0bd3ffc
--- /dev/null
+++ b/package/network/services/dropbear/patches/500-set-default-path.patch
@@ -0,0 +1,11 @@
+--- a/options.h
++++ b/options.h
+@@ -297,7 +297,7 @@ be overridden at runtime with -I. 0 disa
+ #define DEFAULT_IDLE_TIMEOUT 0
+
+ /* The default path. This will often get replaced by the shell */
+-#define DEFAULT_PATH "/usr/bin:/bin"
++#define DEFAULT_PATH "/bin:/sbin:/usr/bin:/usr/sbin"
+
+ /* Some other defines (that mostly should be left alone) are defined
+ * in sysoptions.h */