Przemysław Frasunek (also known as venglin, born 6 May 1983) is a " white hat"

hacker A hacker is a person skilled in information technology who achieves goals and solves problems by non-standard means. The term has become associated in popular culture with a security hackersomeone with knowledge of bug (computing), bugs or exp ...

from Poland. He has been a frequent Bugtraq poster since late in the 1990s, noted for one of the first published successful software exploits for the format string bug class of attacks, just after the first exploit of the person using nickname tf8. Until that time the

vulnerability Vulnerability refers to "the quality or state of being exposed to the possibility of being attacked or harmed, either physically or emotionally." The understanding of social and environmental vulnerability, as a methodological approach, involves ...

was thought harmless. He is the CEO of Redge Technologies.

Vulnerability research

Notable vulnerabilities credited to Przemysław Frasunek: * , Format string bug in WU-FTPD (''remote root exploit''), one of the first exploits for the format string bug class of attacks. * , Buffer overflow (''remote root exploit'') in NTP server, affecting wide range of systems. * , Signal race condition in FTP server, affecting NetBSD and Mac OS X. * , Privilege escalation (''local root exploit'') affecting

Solaris Solaris is the Latin word for sun. It may refer to: Arts and entertainment Literature, television and film * ''Solaris'' (novel), a 1961 science fiction novel by Stanisław Lem ** ''Solaris'' (1968 film), directed by Boris Nirenburg ** ''Sol ...

versions 8, 9, 10 and

OpenSolaris OpenSolaris () is a discontinued open-source computer operating system for SPARC and x86 based systems, created by Sun Microsystems and based on Solaris. Its development began in the mid 2000s and ended in 2010. OpenSolaris was developed as ...

operating systems, discovered two weeks after public release of the

. * 2001 - FreeBSD 4.4 arbitrary file access vulnerability * Kernel mode race condition exploit affecting FreeBSD 6.4. * Kernel mode race condition exploit affecting FreeBSD 7.0. * Kernel mode null pointer dereference exploit affecting FreeBSD 7.0 to 7.2.FreeBSD Security Advisory
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References

External links

*
Exploits by Przemyslaw Frasunek
a
Exploit Db
1983 births Living people Hackers Polish computer scientists {{Poland-bio-stub