Feeds

MS probes Win XP SP2 kernel bug

Crash risk dummy

  • alert
  • submit to reddit

Protecting against web application threats using SSL

Windows XP SP2 has proved to be a lot more robust than critics give Microsoft credit for but that doesn't mean it's immune from security problems. Security researcher Tom Ferris of Security-Protocols.com discovered a bug in XP's kernel that might be used by hackers to crash even fully patched systems with Windows firewall switched on.

The vulnerability stems from a flaw in Remote Desktop Services (disabled by default except on Windows XP Media Center Edition). A maliciously constructed RDP (Remote Desktop Protocol) request might be used to mount denial of service attacks but Ferris said the bug doesn't lend itself to injecting hostile code into vulnerable systems. Microsoft has confirmed the vulnerability but says the risk is limited to denial of service attacks. "We have not been made aware of attacks that try to use the reported vulnerability or of customer impact at this time, but we are aggressively investigating the public reports," it added.

Nonetheless security alert notification firm Secunia rates the bug as "critical". Seperately, Secunia last week also posted info on another Windows XP SP2 security bug. It warns that a flaw in a Windows Network Connections Service component (netman.dll) also poses a denial of service risk but this is only applies to local users not remote attackers hence a much reduced security risk. ®

Related stories

Firefox update completes busy patching day
Three critical fixes in MS July security update
MS issues final software update for Win2K
10 vulns - three critical - in MS patch batch
MS debuts 'forthcoming attractions' pre-alert alert

Reducing the cost and complexity of web vulnerability management

More from The Register

next story
Spies would need SUPER POWERS to tap undersea cables
Why mess with armoured 10kV cables when land-based, and legal, snoop tools are easier?
Early result from Scots indyref vote? NAW, Jimmy - it's a SCAM
Anyone claiming to know before tomorrow is telling porkies
TOR users become FBI's No.1 hacking target after legal power grab
Be afeared, me hearties, these scoundrels be spying our signals
Jihadi terrorists DIDN'T encrypt their comms 'cos of Snowden leaks
Intel bods' analysis concludes 'no significant change' after whistle was blown
Home Depot: 56 million bank cards pwned by malware in our tills
That's about 50 per cent bigger than the Target tills mega-hack
Hackers pop Brazil newspaper to root home routers
Step One: try default passwords. Step Two: Repeat Step One until success
NORKS ban Wi-Fi and satellite internet at embassies
Crackdown on tardy diplomatic sysadmins providing accidental unfiltered internet access
UK.gov lobs another fistful of change at SME infosec nightmares
Senior Lib Dem in 'trying to be relevant' shocker. It's only taxpayers' money, after all
Critical Adobe Reader and Acrobat patches FINALLY make it out
Eight vulns healed, including XSS and DoS paths
prev story

Whitepapers

Secure remote control for conventional and virtual desktops
Balancing user privacy and privileged access, in accordance with compliance frameworks and legislation. Evaluating any potential remote control choice.
WIN a very cool portable ZX Spectrum
Win a one-off portable Spectrum built by legendary hardware hacker Ben Heck
Intelligent flash storage arrays
Tegile Intelligent Storage Arrays with IntelliFlash helps IT boost storage utilization and effciency while delivering unmatched storage savings and performance.
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Beginner's guide to SSL certificates
De-mystify the technology involved and give you the information you need to make the best decision when considering your online security options.