Feeds

Harmless Oracle worm raises security fears

Them thar varmints is coming after our databases

The Power of One eBook: Top reasons to choose HP BladeSystem

Gray Hat hackers have posted proof-of-concept code for a worm designed to spread using vulnerabilities in Oracle's database software. The Oracle Voyager worm, which targets Oracle databases with default user accounts and passwords, was posted on a full disclosure list on Monday (31 October). Although not a threat in itself, security researchers fear the code might be used as a template to develop future malware.

The worm uses the a net connection package (called UTL_TCP) to scan for Oracle databases on the same local network. Once it finds another database, the SID is retrieved and the worm uses several default username and password combinations to attempt to log onto the remote database. The proof-of-concept worm is harmless but possible follow-up code may not be so polite.

"In its current state, the worm isn't a terribly significant threat. However, is can be treated as an early warning sign for future variants of the worm that include additional propagation methods," according to a posting by the SANS Institute's Internet Storm Centre, an organisation which tracks net-based threats.

The scope of the potential threat remains unclear. Security experts nonetheless urge Oracle system administrators to take precautions to shore up security defence. US-CERT, for example, offers the following advice:

  • Change default user credentials for Oracle installations
  • Change the default port for the TNS listener
  • Restrict Oracle network access to trusted hosts only
  • Revoke CREATE DATABASE LINK privileges from the CONNECT role

The emergence of what's said to be the first worm targeting Oracle databases illustrates that malicious code is ceasing to be a Windows only concern as malware authors look to exploit security holes beyond the desktop. A detailed analysis of the Oracle Voyager worm by Red Database Security can be found here. ®

The Power of One eBook: Top reasons to choose HP BladeSystem

More from The Register

next story
HIDDEN packet sniffer spy tech in MILLIONS of iPhones, iPads – expert
Don't panic though – Apple's backdoor is not wide open to all, guru tells us
BMW's ConnectedDrive falls over, bosses blame upgrade snafu
Traffic flows up 20% as motorway middle lanes miraculously unclog
LibreSSL RNG bug fix: What's all the forking fuss about, ask devs
Blow to bit-spitter 'tis but a flesh wound, claim team
Mozilla fixes CRITICAL security holes in Firefox, urges v31 upgrade
Misc memory hazards 'could be exploited' - and guess what, one's a Javascript vuln
Putin: Crack Tor for me and I'll make you a MILLIONAIRE
Russian Interior Ministry offers big pile o' roubles for busting pro-privacy browser
Manic malware Mayhem spreads through Linux, FreeBSD web servers
And how Google could cripple infection rate in a second
Don't look, Snowden: Security biz chases Tails with zero-day flaws alert
Exodus vows not to sell secrets of whistleblower's favorite OS
Researcher sat on critical IE bugs for THREE YEARS
VUPEN waited for Pwn2Own cash while IE's sandbox leaked
prev story

Whitepapers

Top three mobile application threats
Prevent sensitive data leakage over insecure channels or stolen mobile devices.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Top 8 considerations to enable and simplify mobility
In this whitepaper learn how to successfully add mobile capabilities simply and cost effectively.
Application security programs and practises
Follow a few strategies and your organization can gain the full benefits of open source and the cloud without compromising the security of your applications.
The Essential Guide to IT Transformation
ServiceNow discusses three IT transformations that can help CIO's automate IT services to transform IT and the enterprise.