Feeds

OpenBSD exploit gets serious

Gives crackers server access

  • alert
  • submit to reddit

Intelligent flash storage arrays

An esoteric buffer overflow bug in OpenBSD has been upgraded in importance after it was discovered that, in certain conditions, it could allow a cracker to gain remote access to a server.

Users are recommended to apply a patch to fix the one-byte buffer overflow vulnerability present in an OpenBSD service called ftpd(8). The issue particularly affects non-anonymous FTP (File Transfer Protocol) servers, and administrators of these services are also been encouraged to use more secure transport mechanisms.

For a system to be vulnerable, ftpd must have been enabled by the administrator because by default OpenBSD ships with the service turned off - though it is a frequently used service.

The potential risk from the vulnerability is minimised by the fact that to exploit the problem a cracker must have write access to at least one directory.

These factors led to the importance of the bug to be downplayed at first. However the discovery, earlier this week, of a publicly available exploit of the vulnerability led OpenBSD developers to issue a fresh advisory on the issue.

The vulnerability affects OpenBSD versions through 2.8 and NetBSD, though it is not believed to affect FreeBSD.

OpenBSD administrators using ftpd are advised to disable the service and then apply the patch, available here, to their OpenBSD 2.8 source tree. ®

Providing a secure and efficient Helpdesk

More from The Register

next story
UNIX greybeards threaten Debian fork over systemd plan
'Veteran Unix Admins' fear desktop emphasis is betraying open source
Netscape Navigator - the browser that started it all - turns 20
It was 20 years ago today, Marc Andreeesen taught the band to play
Redmond top man Satya Nadella: 'Microsoft LOVES Linux'
Open-source 'love' fairly runneth over at cloud event
Chrome 38's new HTML tag support makes fatties FIT and SKINNIER
First browser to protect networks' bandwith using official spec
Admins! Never mind POODLE, there're NEW OpenSSL bugs to splat
Four new patches for open-source crypto libraries
Torvalds CONFESSES: 'I'm pretty good at alienating devs'
Admits to 'a metric ****load' of mistakes during work with Linux collaborators
prev story

Whitepapers

Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
Why and how to choose the right cloud vendor
The benefits of cloud-based storage in your processes. Eliminate onsite, disk-based backup and archiving in favor of cloud-based data protection.
Three 1TB solid state scorchers up for grabs
Big SSDs can be expensive but think big and think free because you could be the lucky winner of one of three 1TB Samsung SSD 840 EVO drives that we’re giving away worth over £300 apiece.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.