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Diffstat (limited to 'extra/source/pam/patches/pam-1.1.3-securetty-console.patch')
-rw-r--r--extra/source/pam/patches/pam-1.1.3-securetty-console.patch120
1 files changed, 120 insertions, 0 deletions
diff --git a/extra/source/pam/patches/pam-1.1.3-securetty-console.patch b/extra/source/pam/patches/pam-1.1.3-securetty-console.patch
new file mode 100644
index 00000000..94fa6ecf
--- /dev/null
+++ b/extra/source/pam/patches/pam-1.1.3-securetty-console.patch
@@ -0,0 +1,120 @@
+Index: modules/pam_securetty/pam_securetty.8.xml
+===================================================================
+RCS file: /cvsroot/pam/Linux-PAM/modules/pam_securetty/pam_securetty.8.xml,v
+retrieving revision 1.4
+retrieving revision 1.6
+diff -u -p -r1.4 -r1.6
+--- modules/pam_securetty/pam_securetty.8.xml 18 Aug 2008 13:29:25 -0000 1.4
++++ modules/pam_securetty/pam_securetty.8.xml 25 Nov 2010 16:58:59 -0000 1.6
+@@ -33,7 +33,9 @@
+ user is logging in on a "secure" tty, as defined by the listing
+ in <filename>/etc/securetty</filename>. pam_securetty also checks
+ to make sure that <filename>/etc/securetty</filename> is a plain
+- file and not world writable.
++ file and not world writable. It will also allow root logins on
++ the tty specified with <option>console=</option> switch on the
++ kernel command line.
+ </para>
+ <para>
+ This module has no effect on non-root users and requires that the
+@@ -61,6 +63,18 @@
+ </para>
+ </listitem>
+ </varlistentry>
++ <varlistentry>
++ <term>
++ <option>noconsole</option>
++ </term>
++ <listitem>
++ <para>
++ Do not automatically allow root logins on the kernel console
++ device, as specified on the kernel command line, if it is
++ not also specified in the <filename>/etc/securetty</filename> file.
++ </para>
++ </listitem>
++ </varlistentry>
+ </variablelist>
+ </refsect1>
+
+Index: modules/pam_securetty/pam_securetty.c
+===================================================================
+RCS file: /cvsroot/pam/Linux-PAM/modules/pam_securetty/pam_securetty.c,v
+retrieving revision 1.14
+retrieving revision 1.15
+diff -u -p -r1.14 -r1.15
+--- modules/pam_securetty/pam_securetty.c 10 Sep 2009 10:19:58 -0000 1.14
++++ modules/pam_securetty/pam_securetty.c 24 Nov 2010 12:28:01 -0000 1.15
+@@ -2,6 +2,7 @@
+
+ #define SECURETTY_FILE "/etc/securetty"
+ #define TTY_PREFIX "/dev/"
++#define CMDLINE_FILE "/proc/cmdline"
+
+ /*
+ * by Elliot Lee <sopwith@redhat.com>, Red Hat Software.
+@@ -22,6 +23,7 @@
+ #include <pwd.h>
+ #include <string.h>
+ #include <ctype.h>
++#include <limits.h>
+
+ /*
+ * here, we make a definition for the externally accessible function
+@@ -38,6 +40,7 @@
+ #include <security/pam_ext.h>
+
+ #define PAM_DEBUG_ARG 0x0001
++#define PAM_NOCONSOLE_ARG 0x0002
+
+ static int
+ _pam_parse (const pam_handle_t *pamh, int argc, const char **argv)
+@@ -51,6 +54,8 @@ _pam_parse (const pam_handle_t *pamh, in
+
+ if (!strcmp(*argv,"debug"))
+ ctrl |= PAM_DEBUG_ARG;
++ else if (!strcmp(*argv, "noconsole"))
++ ctrl |= PAM_NOCONSOLE_ARG;
+ else {
+ pam_syslog(pamh, LOG_ERR, "unknown option: %s", *argv);
+ }
+@@ -144,6 +149,40 @@ securetty_perform_check (pam_handle_t *p
+ }
+ fclose(ttyfile);
+
++ if (retval && !(ctrl & PAM_NOCONSOLE_ARG)) {
++ FILE *cmdlinefile;
++
++ /* Allow access from the kernel console, if enabled */
++ cmdlinefile = fopen(CMDLINE_FILE, "r");
++
++ if (cmdlinefile != NULL) {
++ char line[LINE_MAX], *p;
++
++ line[0] = 0;
++ fgets(line, sizeof(line), cmdlinefile);
++ fclose(cmdlinefile);
++
++ for (p = line; p; p = strstr(p+1, "console=")) {
++ char *e;
++
++ /* Test whether this is a beginning of a word? */
++ if (p > line && p[-1] != ' ')
++ continue;
++
++ /* Ist this our console? */
++ if (strncmp(p + 8, uttyname, strlen(uttyname)))
++ continue;
++
++ /* Is there any garbage after the TTY name? */
++ e = p + 8 + strlen(uttyname);
++ if (*e == ',' || *e == ' ' || *e == '\n' || *e == 0) {
++ retval = 0;
++ break;
++ }
++ }
++ }
++ }
++
+ if (retval) {
+ pam_syslog(pamh, LOG_WARNING, "access denied: tty '%s' is not secure !",
+ uttyname);