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Files from Gyan Chawdhary

IOS_Connectback_v.1.0.txt: Posted Aug 13, 2008; Authored by Gyan Chawdhary | Site irmplc.com; Cisco IOS connectback shellcode that creates a new tty and sets the privilege level 15 and then connects back on port 21.; tags | shellcode; systems | cisco; SHA-256 | 7d7536d0f4ca415c80e65de21d25fef5ae8347250d1d27bf918e7129b54be89b; Download | Favorite | View

IOS_tiny_v.1.0.txt: Posted Aug 13, 2008; Authored by Gyan Chawdhary | Site irmplc.com; Cisco IOS tiny shellcode that creates a new tty and sets the privilege level 15.; tags | shellcode; systems | cisco; SHA-256 | 382805b63d61450f3bfac3b7092aa9452ac364ec3384116fdf99e7f630891f6e; Download | Favorite | View

Cisco_IOS_Exploitation_Techniques.pdf: Posted Jun 28, 2007; Authored by Gyan Chawdhary | Site irmplc.com; It has been more than a year since Michael Lynn first demonstrated a reliable code execution exploit on Cisco IOS at Black Hat 2005. Although his presentation received a lot of media coverage in the security community, very little is known about the attack and the technical details surrounding the IOS check_heaps() vulnerability. This paper is a result of research carried out by IRM to analyze and understand the check_heaps() attack and its impact on similar embedded devices.; tags | paper, code execution; systems | cisco; SHA-256 | 40dd024bc2d874958a21e126057bd31b7ed7d0c86e440e3d7f7f5635a1c9819c; Download | Favorite | View

phpnolimit.c: Posted Dec 11, 2004; Authored by Gyan Chawdhary; Exploit that makes use of the PHP memory limit vulnerability discovered in July of 2004.; tags | exploit, php; advisories | CVE-2004-0594; SHA-256 | 2c97cd1c958eda9cb6b3a5a97720fabb55603f0d0d23e1c106b84fb552ebbcfa; Download | Favorite | View

freedom.c: Posted Aug 12, 2004; Authored by Gyan Chawdhary; Remote CVS exploit for versions 1.11.15 and below that makes use of the Argumentx error_prog_name double free heap overflow on RedHat 8.0.; tags | exploit, remote, overflow; systems | linux, redhat; advisories | CVE-2004-0396; SHA-256 | 1ef0f00bc5dd2efbcfedccbeaf427ca4d38d3c2fcf5a2710c02762f6489148f1; Download | Favorite | View

subexp.c: Posted Jun 7, 2004; Authored by Gyan Chawdhary; Subversion 1.0.2 remote exploit that makes use of a stack overflow in the svn_time_from_cstring() function. Binds a shell to port 36864. Tested against RedHat 8.0 Psyche build.; tags | exploit, remote, overflow, shell; systems | linux, redhat; SHA-256 | d02b1feccebffc24878e8b25042a2f7c26807f4574998ffb926f8c0216c55f63; Download | Favorite | View

gyan_sendmail.c: Posted May 7, 2004; Authored by Gyan Chawdhary; Local root exploit for sendmail versions 8.12.9 and below that makes use of the prescan function vulnerability originally discovered by Michal Zalewski back in September.; tags | exploit, local, root; SHA-256 | 6b92118a7fe3130fa6ec45d888da04dc8d72dfd1264fed483ce66005c203ca9d; Download | Favorite | View

gyan_pine.c: Posted Sep 18, 2003; Authored by Gyan Chawdhary; Remote Pine exploit for versions 4.56 and below. Makes use of a vulnerability discussed here. Binds a shell to port 10000. Tested against RedHat Linux 7.0.; tags | exploit, remote, shell; systems | linux, redhat; SHA-256 | 902cb346d20aea5cb1ef62db8c36a27a7f7588fb1b62a8d42cc9f4c7751ba3f6; Download | Favorite | View

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