Flash Player zero-day exploit is being used in the wild by a cyberespionage group

Adobe plans to release a patch for the vulnerability as early as Thursday

Adobe Systems warned users Tuesday that an unpatched Flash Player vulnerability is currently being exploited in targeted attacks. The company expects to deliver a patch as soon as Thursday.

The exploit was discovered by researchers from antivirus vendor Kaspersky Lab in attacks attributed to a cyberespionage group known in the security industry as ScarCruft.

The group is relatively new, but is apparently quite resourceful, as this is possibly the second zero-day -- previously unknown and unpatched -- exploit that it used this year.

The other exploit targeted a critical remote code execution vulnerability in Microsoft XML Core Services that was tracked as CVE-2016-0147 and was patched by Microsoft in April.

ScarCruft has been exploiting the new Flash Player zero-day flaw, which Adobe tracks as CVE-2016-4171, as part of a cyberespionage campaign against high-profile victims that was launched in March.

Kaspersky Lab has dubbed this campaign Operation Daybreak and has detected victims in Russia, Nepal, South Korea, China, India, Kuwait and Romania.

ScarCruft is also behind a separate cyberespionage campaign dubbed Operation Erebus that exploits a critical vulnerability in Flash Player patched in May. That vulnerability was also a zero-day when it was discovered in the wild by researchers from security vendor FireEye.

In a security advisory published Tuesday, Adobe said that it will address the new vulnerability in its monthly security bulletins, which will be available as early as Thursday.

Meanwhile, the Kaspersky Lab researchers have confirmed that Microsoft's Enhanced Mitigation Experience Toolkit (EMET) blocks the attack so companies should consider using this tool on their endpoint systems, if they aren't already.

Join the CSO newsletter!

Error: Please check your email address.

More about Adobe SystemsFireEyeKasperskyMicrosoftToolkit

Show Comments

Featured Whitepapers

Editor's Recommendations

Solution Centres

Stories by Lucian Constantin

Latest Videos

  • 150x50

    CSO Webinar: The Human Factor - Your people are your biggest security weakness

    ​Speakers: David Lacey, Researcher and former CISO Royal Mail David Turner - Global Risk Management Expert Mark Guntrip - Group Manager, Email Protection, Proofpoint

    Play Video

  • 150x50

    CSO Webinar: Current ransomware defences are failing – but machine learning can drive a more proactive solution

    Speakers • Ty Miller, Director, Threat Intelligence • Mark Gregory, Leader, Network Engineering Research Group, RMIT • Jeff Lanza, Retired FBI Agent (USA) • Andy Solterbeck, VP Asia Pacific, Cylance • David Braue, CSO MC/Moderator What to expect: ​Hear from industry experts on the local and global ransomware threat landscape. Explore a new approach to dealing with ransomware using machine-learning techniques and by thinking about the problem in a fundamentally different way. Apply techniques for gathering insight into ransomware behaviour and find out what elements must go into a truly effective ransomware defence. Get a first-hand look at how ransomware actually works in practice, and how machine-learning techniques can pick up on its activities long before your employees do.

    Play Video

  • 150x50

    CSO Webinar: Get real about metadata to avoid a false sense of security

    Speakers: • Anthony Caruana – CSO MC and moderator • Ian Farquhar, Worldwide Virtual Security Team Lead, Gigamon • John Lindsay, Former CTO, iiNet • Skeeve Stevens, Futurist, Future Sumo • David Vaile - Vice chair of APF, Co-Convenor of the Cyberspace Law And Policy Community, UNSW Law Faculty This webinar covers: - A 101 on metadata - what it is and how to use it - Insight into a typical attack, what happens and what we would find when looking into the metadata - How to collect metadata, use this to detect attacks and get greater insight into how you can use this to protect your organisation - Learn how much raw data and metadata to retain and how long for - Get a reality check on how you're using your metadata and if this is enough to secure your organisation

    Play Video

  • 150x50

    CSO Webinar: How banking trojans work and how you can stop them

    CSO Webinar: How banking trojans work and how you can stop them Featuring: • John Baird, Director of Global Technology Production, Deutsche Bank • Samantha Macleod, GM Cyber Security, ME Bank • Sherrod DeGrippo, Director of Emerging Threats, Proofpoint (USA)

    Play Video

  • 150x50

    IDG Live Webinar:The right collaboration strategy will help your business take flight

    Speakers - Mike Harris, Engineering Services Manager, Jetstar - Christopher Johnson, IT Director APAC, 20th Century Fox - Brent Maxwell, Director of Information Systems, THE ICONIC - IDG MC/Moderator Anthony Caruana

    Play Video

More videos

Blog Posts

Market Place