Der aktuelle Linux-Kernel und ältere Versionen bis einschließlich Kernel 2.6.17 beinhalten eine Sicherheitslücke, die es lokalen Anwendern ermöglicht sich Root-Rechte zu verschaffen.
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./linux_vmsplice-exploit
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Linux vmsplice Local Root Exploit
By qaaz
-----------------------------------
[+] mmap: 0x0 .. 0x1000
[+] page: 0x0
[+] page: 0x20
[+] mmap: 0x4000 .. 0x5000
[+] page: 0x4000
[+] page: 0x4020
[+] mmap: 0x1000 .. 0x2000
[+] page: 0x1000
[+] mmap: 0xb7ecc000 .. 0xb7efe000
[+] root
# whoami
root
gcc disable-vmsplice-if-exploitable.c -o disable-vmsplice-if-exploitable
./disable-vmsplice-if-exploit
-----------------------------------
Linux vmsplice Local Root Exploit
By qaaz
-----------------------------------
[+] mmap: 0x0 .. 0x1000
[+] page: 0x0
[+] page: 0x20
[+] mmap: 0x4000 .. 0x5000
[+] page: 0x4000
[+] page: 0x4020
[+] mmap: 0x1000 .. 0x2000
[+] page: 0x1000
[+] mmap: 0xb7ee0000 .. 0xb7f12000
[+] root
Exploit gone!
./linux_vmsplice-exploit
-----------------------------------
Linux vmsplice Local Root Exploit
By qaaz
-----------------------------------
[+] mmap: 0x0 .. 0x1000
[+] page: 0x0
[+] page: 0x20
[+] mmap: 0x4000 .. 0x5000
[+] page: 0x4000
[+] page: 0x4020
[+] mmap: 0x1000 .. 0x2000
[+] page: 0x1000
[+] mmap: 0xb7fad000 .. 0xb7fdf000
[-] vmsplice
whoami
*Mein_Username*
/usr/local/bin/disable-vmsplice-if-exploitable
[COLOR='Red']su *Mein_Username* -c /usr/local/bin/disable-vmsplice-if-exploitable[/COLOR]
./linux_vmsplice-exploit
-----------------------------------
Linux vmsplice Local Root Exploit
By qaaz
-----------------------------------
[+] mmap: 0x0 .. 0x1000
[+] page: 0x0
[+] page: 0x20
[+] mmap: 0x4000 .. 0x5000
[+] page: 0x4000
[+] page: 0x4020
[+] mmap: 0x1000 .. 0x2000
[+] page: 0x1000
[+] mmap: 0xb7ec7000 .. 0xb7ef9000
[-] vmsplice
whoami
*Mein_Username*
insmod /usr/local/bin/novmsplice.ko
./linux_vmsplice-exploit
-----------------------------------
Linux vmsplice Local Root Exploit
By qaaz
-----------------------------------
[+] mmap: 0x0 .. 0x1000
[+] page: 0x0
[+] page: 0x20
[+] mmap: 0x4000 .. 0x5000
[+] page: 0x4000
[+] page: 0x4020
[+] mmap: 0x1000 .. 0x2000
[+] page: 0x1000
[+] mmap: 0xb7f6a000 .. 0xb7f9c000
Speicherzugriffsfehler