LinuxSecurity Contributor - Anthony Pell
Anthony Pell
Anthony Pell is an experienced Linux admin with decades of experience managing Linux systems. He is also an experienced pentester and ethical hacker who enjoys finding and fixing vulnerabilities in open-source software. Anthony loves writing about Linux security-related topics and has contributed content to LinuxSecurity.com for many years.
Education: Pentest Penguin Polytechnic: "Keep Calm and sudo On"
Experience: Experienced Linux Sysadmin, Pentester & Ethical Hacker
Citizenship: USA
Articles From Anthony Pell
2 - 4 min read
FreeBSD-SA-97:05:security compromise via open()
29 October 1997
A problem exists in the open() syscall that allows processes to obtain a valid file descriptor w
FreeBSD
6 - 9 min read
FreeBSD-SA-97:04:security compromise via procfs
19 August 1997
A problem exists in the procfs kernel code that allows processes to write memory of other proces
FreeBSD
2 - 3 min read
FreeBSD-SA-97:03:sysinstall bug
07 April 1997
One of the port installation options in sysinstall is to install an anonymous ftp setup on the s
FreeBSD
1 - 2 min read
FreeBSD-SA-97:02:Buffer overflow in lpd
26 March 1997
The lpd program runs as root. A remote attacker can exploit a buffer overflow to obtain root pr
FreeBSD
5 - 8 min read
FreeBSD-SA-96:21: unauthorized access via buffer overrun in talkd
18 January 1997
Buffer overrun (aka stack overflow) exploits in system supplied and locally installed utilities
FreeBSD
4 - 6 min read
FreeBSD-SA-96:20:unauthorized access via buffer overruns cron, crontab, ppp
16 December 1996
The programs in question store user-supplied information in internal buffers. There is no range
FreeBSD
1 - 2 min read
FreeBSD-SA-96:19:Buffer overflow in modstat
10 December 1996
The modstat program has always been installed setuid kmem. Within the program, a buffer overflow
FreeBSD
1 - 3 min read
FreeBSD-SA-96:18:Buffer overflow in lpr (revised)
25 November 1996
Due to its nature, the lpr program is setuid root. Unfortunately, the program does not do suffic
FreeBSD
1 - 3 min read
FreeBSD-SA-96:17:
16 July 1996
The Z-Modem protocol specifies a mechanism which allows the transmitter of a file to execute an
FreeBSD
2 - 3 min read
FreeBSD-SA-96:16:security vulnerability in rdist
12 July 1996
rdist creates an error message based on a user provided string, without checking bounds
FreeBSD
3 - 5 min read
FreeBSD-SA-96:15:security compromise from ppp
04 July 1996
The ppp program does not properly manage user privileges, allowing users to run any program with
FreeBSD
2 - 4 min read
FreeBSD-SA-96:12:security compromise from perl (suidperl) utility
28 June 1996
The authors of perl provide a "suidperl" program for proper processing of setuid perl scripts on
FreeBSD