Follow Us

We use cookies to provide you with a better experience. If you continue to use this site, we'll assume you're happy with this. Alternatively, click here to find out how to manage these cookies

hide cookie message

Samba releases patch to fix critical remote code execution hole

A Samba vulnerability can be exploited by remote unauthenticated attackers to execute arbitrary code on affected systems

Article comments

The developers of Samba, the open source software that enables file and print sharing between Linux, Windows and Mac OS X computers, released security patches on Tuesday to address a critical vulnerability that can be exploited by remote attackers to execute arbitrary code on systems where the Samba service is running.

The vulnerability is identified as CVE-2012-1182 and is located in Samba's code that handles the processing of remote procedure call (RPC) requests, particularly their translation into a Network Data Representation (NDR) format.

A client can send a specially crafted RPC call to a Samba server in order to exploit the vulnerability and execute unauthorized code with administrative privileges (root) on the system.

"As this does not require an authenticated connection it is the most serious vulnerability possible in a program, and users and vendors are encouraged to patch their Samba installations immediately," the Samba development team said in a security advisory.

In order to mitigate the risks associated with this vulnerability, Samba administrators can either upgrade their installations to the newly released Samba 3.6.4, Samba 3.5.14 and 3.4.16 versions, depending on which branch they use, or manually apply patches to their installations without upgrading.

The vulnerability is very serious and this is also evident from the Samba development team's decision to release patches even for versions that are no longer officially supported, said Carsten Eiram, chief security specialist at vulnerability management firm Secunia.

Secunia rated the vulnerability as moderately critical because best use practices dictate that Samba services should only be accessible over local area networks. However, Samba can also be configured to work over the Internet and for cases like that, the vulnerability should be considered highly critical, Eiram said.

Samba comes installed by default on most Linux distributions, as well as on Apple's Mac OS X Server. It is also available for BSD, Solaris and other UNIX-like operating systems.

In addition to being commonly installed on many computers, Samba is also used in many UNIX-based devices like network printers or network storage devices, Eiram said.

This makes this vulnerability an attractive target for exploit writers, both for integration in commercial and free penetration testing tools like Metasploit, as well as for use in malicious attacks. "An unauthenticated code execution vulnerability in Samba is very interesting to create a working exploit for," Eiram said.



Share:

More from Techworld

More relevant IT news

Comments



Send to a friend

Email this article to a friend or colleague:

PLEASE NOTE: Your name is used only to let the recipient know who sent the story, and in case of transmission error. Both your name and the recipient's name and address will not be used for any other purpose.

Techworld White Papers

Choose – and Choose Wisely – the Right MSP for Your SMB

End users need a technology partner that provides transparency, enables productivity, delivers...

Download Whitepaper

10 Effective Habits of Indispensable IT Departments

It’s no secret that responsibilities are growing while budgets continue to shrink. Download this...

Download Whitepaper

Gartner Magic Quadrant for Enterprise Information Archiving

Enterprise information archiving is contributing to organisational needs for e-discovery and...

Download Whitepaper

Advancing the state of virtualised backups

Dell Software’s vRanger is a veteran of the virtualisation specific backup market. It was the...

Download Whitepaper

Techworld UK - Technology - Business

Innovation, productivity, agility and profit

Watch this on demand webinar which explores IT innovation, managed print services and business agility.

Techworld Mobile Site

Access Techworld's content on the move

Get the latest news, product reviews and downloads on your mobile device with Techworld's mobile site.

Find out more...

From Wow to How : Making mobile and cloud work for you

On demand Biztech Briefing - Learn how to effectively deliver mobile work styles and cloud services together.

Watch now...

Site Map

* *