lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [day] [month] [year] [list]
Date: Mon, 14 Dec 2015 21:22:04 +0000
From: halfdog <me@...fdog.net>
To: fulldisclosure@...lists.org
Subject: [FD] User man Local Root Exploit/Linux Kernel setgid Directory
 Privilege Escalation/PAM Owner Check Weakness

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hello List,

This ([1]) is a short article how to use the setgid directory
/var/cache/man to escalate privileges from man/man to man/root on Ubuntu
Vivid and to root/root via the "catman" cron job [2]. In my opinion this
is not a really big issue, but I had quite fun analyzing it and writing
a tool to use SUID-binaries to create arbitrary SGID-binaries. So
perhaps someone else might have fun reading the article and reproducing
the results.

hd

[1]
http://www.halfdog.net/Security/2015/SetgidDirectoryPrivilegeEscalation/
[2]
http://www.halfdog.net/Security/2015/MandbSymlinkLocalRootPrivilegeEscalation/

- -- 
http://www.halfdog.net/
PGP: 156A AE98 B91F 0114 FE88  2BD8 C459 9386 feed a bee
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1

iEYEARECAAYFAlZvMu8ACgkQxFmThv7tq+663QCgh8NTR0FlY+she/dP029Sc8lg
/WgAniPJE6/tlMhCMOmg7CVLrQkGRB5z
=UbUn
-----END PGP SIGNATURE-----

_______________________________________________
Sent through the Full Disclosure mailing list
https://nmap.org/mailman/listinfo/fulldisclosure
Web Archives & RSS: http://seclists.org/fulldisclosure/

Powered by blists - more mailing lists