Second unpatched ActiveX bug hits IE

Swiss cheese browser gains extra hole


Scallywags are using an unpatched vulnerability in an ActiveX component to distribute malware, Microsoft warned on Monday. The development adds to already pressing unresolved Internet Explorer security bug woes.

No patch is available for the Office Web Components ActiveX security hole, although there are workarounds which can be automated for enterprise rollouts. The flawed component is used by IE to display Excel spreadsheets, greatly increasing the scope for mischief. Win XP and Win 2003 systems are particularly at risk, while the additional security controls in Vista cover Microsoft's modesty.

Redmond said it's aware of attacks against the security bug, which would involve tricking users into visiting booby-trapped websites. McAfee warns of targeted Trojan attacks based on the vulnerability circulating in China.

The timing of the advisory, a day before Microsoft's monthly Patch Tuesday update, suggests it's highly unlikely that a fix will become available until August at the earliest.

Monday's advisory adds to the list of pending Internet Explorer vulnerabilities, most notably an unpatched flaw in Microsoft Video ActiveX Control that has become the target of widespread exploitation since earlier this month. The flaw is particularly serious because Internet Explorer users can get hit simply by straying onto a hacker-controlled website, providing they are running Windows XP. Vista, as with the latest ActiveX bug, is far less susceptible.

Six updates - three of which address critical flaws in Windows - are due from Microsoft later on Tuesday, as explained here. Redmond is expected to patch the more pressing (and longstanding) online video ActiveX bug later.

Nonetheless, the current outbreak of unpatched ActiveX bugs has prompted some security watchers, including the SANS Institute's Internet Storm Centre (here) and F-Secure (here), to advise punters to consider using alternative browsers in preference to Internet Explorer. ®

Similar topics


Other stories you might like

  • Everything you wanted to know about modern network congestion control but were perhaps too afraid to ask

    In which a little unfairness can be quite beneficial

    Systems Approach It’s hard not to be amazed by the amount of active research on congestion control over the past 30-plus years. From theory to practice, and with more than its fair share of flame wars, the question of how to manage congestion in the network is a technical challenge that resists an optimal solution while offering countless options for incremental improvement.

    This seems like a good time to take stock of where we are, and ask ourselves what might happen next.

    Congestion control is fundamentally an issue of resource allocation — trying to meet the competing demands that applications have for resources (in a network, these are primarily link bandwidth and router buffers), which ultimately reduces to deciding when to say no and to whom. The best framing of the problem I know traces back to a paper [PDF] by Frank Kelly in 1997, when he characterized congestion control as “a distributed algorithm to share network resources among competing sources, where the goal is to choose source rate so as to maximize aggregate source utility subject to capacity constraints.”

    Continue reading
  • How business makes streaming faster and cheaper with CDN and HESP support

    Ensure a high video streaming transmission rate

    Paid Post Here is everything about how the HESP integration helps CDN and the streaming platform by G-Core Labs ensure a high video streaming transmission rate for e-sports and gaming, efficient scalability for e-learning and telemedicine and high quality and minimum latencies for online streams, media and TV broadcasters.

    HESP (High Efficiency Stream Protocol) is a brand new adaptive video streaming protocol. It allows delivery of content with latencies of up to 2 seconds without compromising video quality and broadcasting stability. Unlike comparable solutions, this protocol requires less bandwidth for streaming, which allows businesses to save a lot of money on delivery of content to a large audience.

    Since HESP is based on HTTP, it is suitable for video transmission over CDNs. G-Core Labs was among the world’s first companies to have embedded this protocol in its CDN. With 120 points of presence across 5 continents and over 6,000 peer-to-peer partners, this allows a service provider to deliver videos to millions of viewers, to any devices, anywhere in the world without compromising even 8K video quality. And all this comes at a minimum streaming cost.

    Continue reading
  • Cisco deprecates Microsoft management integrations for UCS servers

    Working on Azure integration – but not there yet

    Cisco has deprecated support for some third-party management integrations for its UCS servers, and emerged unable to play nice with Microsoft's most recent offerings.

    Late last week the server contender slipped out an end-of-life notice [PDF] for integrations with Microsoft System Center's Configuration Manager, Operations Manager, and Virtual Machine Manager. Support for plugins to VMware vCenter Orchestrator and vRealize Orchestrator have also been taken out behind an empty rack with a shotgun.

    The Register inquired about the deprecations, and has good news and bad news.

    Continue reading

Biting the hand that feeds IT © 1998–2021