Risk
3/27/2011
07:28 PM
George V. Hulme
George V. Hulme
Commentary
50%
50%

"Trusted" Sites Fail To Clean Malvertising Scourge

Reports indicate that users of Facebook and the European music service, Spotify, have been exposed recently to malvertising attacks.

Reports indicate that users of Facebook and the European music service, Spotify, have been exposed recently to malvertising attacks.As was detailed on anti-malware vendor Sophos' Naked Security blog, the service Spotify was hit by malicious ads that were inserted into a legitimate advertising network. These ads exploited a vulnerability within Java that left an opening for attackers to insert malware on vulnerable systems.

Sophos also reports, from a tip that they received, that Facebook also served a number of malicious ads:

Naked Security reader John sent us a tip that there were malicious ads circulating on Facebook.

When you click on the ad on Facebook, you are redirected to a page saying you need to install Adobe Flash Player. The malware is served up when you click and is called AdobeFlashPlayer.exe.

Malvertising attacks like this have been a growing concern. According to Web security firm Dasient, in the last three months of 2010 attackers managed to serve more than 3 million malvertising impressions every day.

Also, a few weeks ago, malicious and bogus anti-virus selling software ads somehow made it on to the ad network that is used by the London Stock Exchange and Autotrader, as reported by the BBC:

Tens of thousands of people could have been caught out by cyber criminals who put booby-trapped adverts on popular webpages.

The criminals racked up the victims by compromising the computers used by ad firm Unanimis to display adverts to popular websites.

The ads appeared on the websites of the London Stock Exchange, Autotrader, the Vue cinema chain and six other sites.

Unanimis said it moved quickly to pull the adverts once they were discovered.

More information about the plague of malvertising can be found at the website of the Online Trust Alliance.

For my security and technology observations throughout the day, find me on Twitter at @georgevhulme.

Comment  | 
Print  | 
More Insights
Register for Dark Reading Newsletters
White Papers
Cartoon
Current Issue
Flash Poll
Video
Slideshows
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2015-4293
Published: 2015-07-30
The packet-reassembly implementation in Cisco IOS XE 3.13S and earlier allows remote attackers to cause a denial of service (CPU consumption or packet loss) via fragmented (1) IPv4 or (2) IPv6 packets that trigger ATTN-3-SYNC_TIMEOUT errors after reassembly failures, aka Bug ID CSCuo37957.

CVE-2014-7912
Published: 2015-07-29
The get_option function in dhcp.c in dhcpcd before 6.2.0, as used in dhcpcd 5.x in Android before 5.1 and other products, does not validate the relationship between length fields and the amount of data, which allows remote DHCP servers to execute arbitrary code or cause a denial of service (memory c...

CVE-2014-7913
Published: 2015-07-29
The print_option function in dhcp-common.c in dhcpcd through 6.9.1, as used in dhcp.c in dhcpcd 5.x in Android before 5.1 and other products, misinterprets the return value of the snprintf function, which allows remote DHCP servers to execute arbitrary code or cause a denial of service (memory corru...

CVE-2015-2977
Published: 2015-07-29
Webservice-DIC yoyaku_v41 allows remote attackers to create arbitrary files, and consequently execute arbitrary code, via unspecified vectors.

CVE-2015-2978
Published: 2015-07-29
Webservice-DIC yoyaku_v41 allows remote attackers to bypass authentication and complete a conference-room reservation via unspecified vectors, as demonstrated by an "unintentional reservation."

Dark Reading Radio
Archived Dark Reading Radio
What’s the future of the venerable firewall? We’ve invited two security industry leaders to make their case: Join us and bring your questions and opinions!