First stab at the services image

This commit is contained in:
Neale Pickett 2009-10-05 17:09:20 -06:00
parent 4de0f9c088
commit 266951612b
14 changed files with 281 additions and 2 deletions

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@ -64,6 +64,10 @@ th, td {
vertical-align: top;
}
.scoreboard {
background: #222;
}
.scoreboard td {
height: 400px;
}

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@ -10,7 +10,7 @@ kevin.tce: target
target: kevin.py run log.run
$(INSTALL) -D kevin.py target/usr/bin/kevin.py
$(INSTALL) --owner=100 -d target/var/lib/ctf/kevin/tokens
$(INSTALL) --owner=100 -d target/var/lib/kevin/tokens
$(INSTALL) -d target/var/service/kevin
$(INSTALL) run target/var/service/kevin/run

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@ -2,4 +2,4 @@
[ -f /var/lib/ctf/disabled/kevin ] && exit 0
exec envuidgid ctf /usr/bin/kevin.py --victims=/var/lib/ctf/kevin/victims.txt --tokens=/var/lib/ctf/kevin/tokens
exec envuidgid ctf /usr/bin/kevin.py --victims=/var/lib/kevin/victims.txt --tokens=/var/lib/kevin/tokens

28
pwnables/Makefile Normal file
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@ -0,0 +1,28 @@
CGI = cat.cgi
TARGET = $(CURDIR)/target
FAKE = fakeroot -s $(CURDIR)/fake -i $(CURDIR)/fake
INSTALL = $(FAKE) install
all: target
target:
$(INSTALL) -d $(TARGET)
$(MAKE) -C daemons TARGET=$(TARGET) install
$(INSTALL) -D init/networking $(TARGET)/var/service/networking/run
$(INSTALL) -D init/telnetd $(TARGET)/var/service/networking/run
$(INSTALL) -D init/tftpd $(TARGET)/var/service/networking/run
$(INSTALL) -d $(TARGET)/usr/lib/www
$(INSTALL) $(CGI) $(TARGET)/usr/lib/www
$(INSTALL) -D flag $(TARGET)/var/lib/tftp/flag
$(INSTALL) -D flag $(TARGET)/var/lib/notes/flag
$(INSTALL) -D flag $(TARGET)/var/lib//flag
$(INSTALL) -D flag $(TARGET)/var/lib/tftp/flag
clean:
rm -rf target

6
pwnables/cat.cgi Executable file
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@ -0,0 +1,6 @@
#! /bin/sh
echo 'Content-type: text/plain'
echo
cat .$PATH_INFO

21
pwnables/daemons/Makefile Normal file
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@ -0,0 +1,21 @@
SBIN = in.fingerd in.noted
BIN = notecli
TARGET ?= $(CURDIR)/target
FAKE = fakeroot -s $(CURDIR)/fake -i $(CURDIR)/fake
INSTALL = $(FAKE) install
all: $(SBIN) $(BIN)
install: all
$(INSTALL) -d $(TARGET)/usr/sbin
$(INSTALL) -s $(SBIN) $(TARGET)/usr/sbin
$(INSTALL) -d $(TARGET)/usr/bin
$(INSTALL) -s $(BIN) $(TARGET)/usr/bin
$(INSTALL) -d $(TARGET)/var/service/fingerd
$(INSTALL) run.fingerd $(TARGET)/var/service/fingerd/run
$(INSTALL) -d $(TARGET)/var/service/noted
$(INSTALL) run.noted $(TARGET)/var/service/noted/run

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@ -0,0 +1,44 @@
#include <syslog.h>
#include <stdio.h>
int
main(int argc, char *argv)
{
char user[256];
char path[512];
char *data;
FILE *f;
size_t count;
int i;
char *peer = getenv("REMOTEADDR");
openlog("in.fingerd", LOG_PID, LOG_USER);
if (NULL == gets(user)) {
return 0;
}
for (data = user; *data; data += 1) {
if ('\r' == *data) {
*data = 0;
}
}
if (peer) {
syslog(LOG_INFO, "%s requests %s", peer, user);
}
if (0 == user[0]) {
printf("Nobody's home.\n");
return 0;
}
sprintf(path, "/home/%s/.plan", user);
f = fopen(path, "r");
if (NULL == f) {
printf("No such user.\n");
return 0;
}
data = path;
while (count = fread(data, sizeof(*data), 1, f)) {
fwrite(data, count, 1, stdout);
}
return 0;
}

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@ -0,0 +1,55 @@
#include <stdio.h>
#include <syslog.h>
void
readntrim(char *s)
{
gets(s);
for (; *s; s++) {
switch (*s) {
case '\n':
case '\r':
*s = 0;
}
}
}
int
main(int argc, char *argv)
{
int cmd;
char line[4096];
char note[512];
FILE *f = NULL;
char *peer = getenv("REMOTEADDR");
openlog("in.noted", LOG_PID, LOG_USER);
switch (getc(stdin)) {
case EOF:
return 0;
case 'r':
readntrim(note);
if (peer) {
syslog(LOG_INFO, "%s read %s", peer, note);
}
f = fopen(note, "r");
while (fgets(line, sizeof(line), f)) {
fputs(line, stdout);
}
fclose(f);
break;
case 'w':
readntrim(note);
if (peer) {
syslog(LOG_INFO, "%s write %s", peer, note);
}
f = fopen(note, "w");
while (gets(line)) {
fputs(line, f);
}
fclose(f);
break;
}
return 0;
}

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@ -0,0 +1,90 @@
#include <stdio.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <string.h>
int
open_connection(char *host, int port)
{
struct sockaddr_in addr;
struct hostent *h;
int fd;
if (! inet_aton(host, &(addr.sin_addr))) {
if (!(h = gethostbyname(host))) {
return -1;
} else {
memcpy(&(addr.sin_addr), h->h_addr, h->h_length);
}
}
fd = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
if (fd == -1) {
return -1;
}
addr.sin_family = AF_INET;
addr.sin_port = htons(port);
if (connect(fd, (struct sockaddr *)&addr, sizeof(addr))) {
close(fd);
return -1;
}
return fd;
}
void
clean(char *s)
{
for (; *s; s++) {
switch (*s) {
case '/':
case '.':
*s = '_';
}
}
}
int
main(int argc, char *argv[])
{
int fd;
char s[4096];
ssize_t len;
if (4 != argc) {
printf("Usage: %s HOST NOTE COMMAND\n", argv[0]);
printf("\n");
printf(" COMMAND must be 'r' (read) or 'w' (write).\n");
printf(" For w, input is taken from stdin.\n");
return 1;
}
fd = open_connection(argv[1], 4000);
clean(argv[2]);
switch (argv[3][0]) {
case 'r':
write(fd, "r", 1);
write(fd, argv[2], strlen(argv[2]));
write(fd, "\n", 1);
do {
len = read(fd, s, sizeof(s));
write(1, s, len);
} while (len);
break;
case 'w':
write(fd, "w", 1);
write(fd, argv[2], strlen(argv[2]));
write(fd, "\n", 1);
do {
len = read(0, s, sizeof(s));
write(fd, s, len);
} while (len);
break;
default:
printf("I don't understand that command.\n");
break;
}
return 0;
}

3
pwnables/daemons/run.fingerd Executable file
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@ -0,0 +1,3 @@
#! /bin/sh
exec tcpsvd 0 79 /usr/sbin/in.fingerd

4
pwnables/daemons/run.noted Executable file
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@ -0,0 +1,4 @@
#! /bin/sh
cd /var/lib/notes
exec tcpsvd 0 4000 /usr/sbin/in.noted

14
pwnables/init/networking Executable file
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@ -0,0 +1,14 @@
#! /bin/sh -e
# busybox's dc doesn't support i :<
# Its awk does support 0xa0 as an int, but gawk doesn't. This only works on busybox.
lastd=awk -F ':' '{for (i=1; i<NF; i++) {q = xor(q, "0x" $i);} print (q<2?2:q);}' /sys/class/net/eth0/address
myip=10.0.0.$lastd
ifconfig eth0 $myip netmask 255.255.0.0
ifconfig eth1 192.168.0.1
while true; do
sleep 10d
done

7
pwnables/init/telnetd Executable file
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@ -0,0 +1,7 @@
#! /bin/sh
state=$(cat /sys/class/net/eth1/operstate)
if [ "$state" != "up" ]; then
exit 0
fi
exec tcpsvd 192.168.0.1 23 telnetd -i -l /bin/sh

3
pwnables/init/tftpd Executable file
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@ -0,0 +1,3 @@
#! /bin/sh
exec udpsvd 0 69 tftpd /var/lib/tftp