UNIX 7th Edition binmkdir - Local Buffer Overflow

UNIX 7th Edition binmkdir - Local Buffer Overflow / Exploit for /bin/mkdir Unix V7 PDP-11. mkdir has a buffer overflow when checking if the directory in /arg/with/slashes/fname exists. This will run /bin/sh with euid 0, but not uid 0. Since the shell doesn't do anything special about this, we don...

Syscall implementation could lead to whether or not a file exists

include stdlib.h include unistd.h include stdio.h include sys/types.h include fcntl.h ifndef ONOFOLLOW define ONOFOLLOW 0400000 / don't follow links / endif ifndef OLARGEFILE define OLARGEFILE 0100000 endif int flags = ORDONLY|OEXCL|OSYNC|ONOCTTY|ONOFOLLOW; / taken from scuts format string...

Solaris priocntl exploit

Moderator note: Messages with links to technical details outside of the message are not approved. Because of the potential delay waiting for another submission, the original message has been modified to include the details. Details follow: Solaris's Got Big problem on System Call priocntl...

openbsd-select-bug.txt

Hi there, Recently a bug in the select syscall of openbsd was published. This text describes the details and the eventual exploitation of this bug. First of all let us look at the definition of select: int selectint nfds, fdset readfds, fdset writefds, fdset exceptfds, struct timeval timeout; The...

CylantSecure 1.0 - Kernel Module Syscall Rerouting

/ source: https://www.securityfocus.com/bid/2958/info CylantSecure is a commercial Linux hardening tool and security infrastructure available from Cylant Technology. A problem in the CylantSecure infrastructure could allow users to escape monitoring. A user with root access may load a module that...

CylantSecure 1.0 - Kernel Module Syscall Rerouting

CylantSecure 1.0 - Kernel Module Syscall Rerouting / source: https://www.securityfocus.com/bid/2958/info CylantSecure is a commercial Linux hardening tool and security infrastructure available from Cylant Technology. A problem in the CylantSecure infrastructure could allow users to escape...

BeOS syscall bug

Summary: BeOS crashes when system call with invalid parameters is issued. Details: When using direct kernel calls through int 0x25 not libroot.so functions BeOS dies on most system calls with invalid parameters/stack. Allthough Be has registered this bug before R5.0, it is present in R5.0, and is...

digital-unix4.0-asm-shell.txt

Date: Tue, 26 Jan 1999 15:18:08 -0500 From: Seth Michael McGann To: [email protected] Subject: Re: Digital Unix 4.0 exploitable buffer overflows On Mon, 25 Jan 1999, Lamont Granquist wrote: Previously Digital Unix has been relatively immune to buffer overflow attacks due to the lack of an...

FreeBSD-SA-97:05.open

-----BEGIN PGP SIGNED MESSAGE----- ============================================================================= FreeBSD-SA-97:05 Security Advisory FreeBSD, Inc. Topic: security compromise via open Category: core Module: kern Announced: 1997-10-29 Affects: FreeBSD 2.1., FreeBSD 2.2.,...