2761 matches found
OpenBSD local DoS and root exploit
The following is research material from FozZy from Hackademy and Hackerz Voice newspaper http://www.hackerzvoice.org, and can be distributed modified or not if proper credits are given to them. For educational purposes only, no warranty of any kind, I may be wrong, this post could kill you mail...
Apple Mac OSX 10.x / FreeBSD 4.x / OpenBSD 2.x / Solaris 2.5/2.6/7.0/8 - 'exec C Library' Standard I/O File Descriptor Closure
/ source: https://www.securityfocus.com/bid/4568/info It has been reported that BSD-based kernels do not check to ensure that the C library standard I/O file descriptors 0-2 are valid open files before execing setuid images. Consequently, I/O that are opened by a setuid process may be assigned fi...
Security Advisory FreeBSD-SA-02:23.stdio
-----BEGIN PGP SIGNED MESSAGE----- ============================================================================= FreeBSD-SA-02:23.stdio Security Advisory The FreeBSD Project Topic: insecure handling of stdio file descriptors Category: core Module: kernel Announced: 2002-04-22 Credits: Joost Pol...
CVE-2001-1047
Race condition in OpenBSD VFS allows local users to cause a denial of service kernel panic by 1 creating a pipe in one thread and causing another thread to set one of the file descriptors to NULL via a close, or 2 calling dup2 on a file descriptor in one process, then setting the descriptor to NU...
Locally exploitable races in OpenBSD VFS
my apologies if it ends up submitted twice Let's start with the trivial: good old aliasing bugs. Example 1: dup2 vs. close. Relevant file: kern/kerndescrip.c sysdup2p, v, retval struct proc p; void v; registert retval; snip if uintold = fdp-fdnfiles || fdp-fdofilesold == NULL || uintnew =...
CVE-2001-1047
Race condition in OpenBSD VFS allows local users to cause a denial of service kernel panic by 1 creating a pipe in one thread and causing another thread to set one of the file descriptors to NULL via a close, or 2 calling dup2 on a file descriptor in one process, then setting the descriptor to NU...
CVE-2000-1040
CVE-2000-1040 concerns a format string vulnerability in the logging function of ypbind 3.3 when run in debug mode. The flaw can leak file descriptors and allow a denial of service. Some sources (Mandrake MDKSA-2000:064) also mention a related buffer overflow in ypserv if the build system lacks vs...
CVE-2000-0786
GNU userv 1.0.0 and earlier does not properly perform file descriptor swapping, which can corrupt the USERVGROUPS and USERVGIDS environmental variables and allow local users to bypass some access restrictions...
CVE-2000-0786
GNU userv 1.0.0 and earlier does not properly perform file descriptor swapping, which can corrupt the USERVGROUPS and USERVGIDS environmental variables and allow local users to bypass some access restrictions...
CVE-2000-0786
GNU userv 1.0.0 and earlier are affected by an issue where improper file descriptor swapping can corrupt the USERV_GROUPS and USERV_GIDS environment variables, potentially allowing local users to bypass some access restrictions. The public documentation identifies the affected component and the c...
ftpd.dos.pl
Who has more free file descriptors & network ports, you or the ftp server ? ftpd's which limit connections to 1 per user@host or similar may have some defense against this, or if they don't support multiple data connections open at the same time. I suspect "many" is the number of ftpd's which are...
ISC BIND 8.2.2 IRIX 6.5.17 Solaris 7.0 - NXT Overflow Denial of Service
ISC BIND 8.2.2 IRIX 6.5.17 Solaris 7.0 - NXT Overflow Denial of Service // source: https://www.securityfocus.com/bid/788/info There are several vulnerabilities in recent BIND packages pre 8.2.2. The first is a buffer overflow condition which is a result of BIND improperly validating NXT records...
ISC BIND 8.2.2 / IRIX 6.5.17 / Solaris 7.0 - NXT Overflow / Denial of Service
// source: https://www.securityfocus.com/bid/788/info There are several vulnerabilities in recent BIND packages pre 8.2.2. The first is a buffer overflow condition which is a result of BIND improperly validating NXT records. The consequence of this being exploited is a remote root compromise...
CVE-1999-0062
The OpenBSD chpass command is affected by a local-privilege-escalation flaw caused by file-descriptor leakage, enabling a local user to gain root access. The provided documents do not specify affected versions, exact root-cause details, exploit steps, or available fixes. No exploitation workflow ...
CVE-1999-0083
getcwd file descriptor leak in FTP...
CVE-1999-0083
CVE-1999-0083 corresponds to a getcwd() file descriptor leak in FTP. The available connected data identifies the vulnerability as a leak in the getcwd() call within FTP, but no exploit details are provided. CVSS 2.0 metrics indicate a Network attack vector, Low attack complexity, no authenticatio...
FreeBSD 3.0 - UNIX-domain Panic (Denial of Service)
/ source: https://www.securityfocus.com/bid/168/info A vulnerability in FreeBSD's UNIX-domain protocol implementation of file descriptor passing can cause the kernel to panic. / include include include include include include define PATH "/tmp/123" define PATHTMP "/tmp/123.tmp" define SOMEFILE...
FreeBSD 3.0 - UNIX-domain Panic (Denial of Service)
FreeBSD 3.0 - UNIX-domain Panic Denial of Service / source: https://www.securityfocus.com/bid/168/info A vulnerability in FreeBSD's UNIX-domain protocol implementation of file descriptor passing can cause the kernel to panic. / include include include include include include define PATH "/tmp/123...