Archive | April, 2008

Biometric Keylogger Can Grab Fingerprints


Well this is quite scary as biometrics are touted as the ultimate in security and two factor authentication with biometrics is about as ‘heavy’ as most places get.

The fact that the biometric data can be ‘sniffed’ reconstructed and re-used…is worrying to say the least. Do any of you have biometric measures in your workplace?

A British researcher has developed a biometric keylogger of sorts that can capture fingerprints required to unlock building doors or gain access to computer networks or other restricted systems.

For now, the Biologger is a proof-of-concept aimed at showing the insecurity of many biometric systems, according to Matthew Lewis, who demonstrated the tool at last month’s Black Hat Amsterdam conference. But the researcher, who works for Information Risk Management, warns the attack could become commonplace if current practices don’t change and could be used to log images of retinas, facial features and any other physical characteristics used by biometric systems.

“Biometric device manufacturers and system integrators cannot rely on security through obscurity alone for the overall security of their devices and systems,” he writes in this white paper (PDF). “Without adequate protection of the confidentiality, integrity and availability of biometric access control devices and their data, the threat of “Biologging” activities within those enterprises employing such access controls is real.”


An interesting read, and yes it seems ‘biologging’ is a real threat. A lot of these system designers and integrators/implementers don’t really have a grip on architecture security.

They just assume biometrics = safe and disregard how it’s implement, how safe the data is, how it’s stored and what state it’s in during transit (unencrypted?).

Lewis was also able to issue commands to the access control device that enabled him to unlock doors and add new users with full administrative rights without presenting a fingerprint. That’s because the device needed a single 8-byte message that passed over the network in plaintext. Although he was never able to crack a 2-byte checksum used for issuance of each message, he was able to overcome this limitation by taking a brute-force approach, in which every possible combination of checksums was used.

There are other limitations to Lewis’s attack. For one, it requires attackers to have privileged access to the network connecting the access point to the server. Another is that the traffic was transmitted using the user datagram protocol, which rendered the brute-force attempts “not 100% reliable.”

But his point seems to be that, just as best practices require that passwords are never stored in the clear, fingerprints and other biometric data should likewise be encrypted. Architects designing the next generation of biometric systems, are you listening?

I hope they are listening, and they sort it out!

Source: The Register

Posted in: Hardware Hacking

Topic: Hardware Hacking


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Wireshark v1.0.0 Released – Cross Platform Graphical Packet Sniffer


After nearly 10 years of developement Wireshark (formely known as Ethereal) has finally reached version 1!

For those that don’t know, Wireshark is the world’s foremost network protocol analyzer, and is the de facto (and often de jure) standard across many industries and educational institutions.

Wireshark development thrives thanks to the contributions of networking experts across the globe. It is the continuation of a project that started in 1998.

Features

Wireshark has a rich feature set which includes the following:

  • Deep inspection of hundreds of protocols, with more being added all the time
  • Live capture and offline analysis
  • Standard three-pane packet browser
  • Multi-platform: Runs on Windows, Linux, OS X, Solaris, FreeBSD, NetBSD, and many others
  • Captured network data can be browsed via a GUI, or via the TTY-mode TShark utility
  • The most powerful display filters in the industry
  • Rich VoIP analysis
  • Read/write many different capture file formats: tcpdump (libpcap), Catapult DCT2000, Cisco Secure IDS iplog, Microsoft Network Monitor, Network General Sniffer® (compressed and uncompressed), Sniffer® Pro, and NetXray®, Network Instruments Observer, Novell LANalyzer, RADCOM WAN/LAN Analyzer, Shomiti/Finisar Surveyor, Tektronix K12xx, Visual Networks Visual UpTime, WildPackets EtherPeek/TokenPeek/AiroPeek, and many others
  • Capture files compressed with gzip can be decompressed on the fly
  • Live data can be read from Ethernet, IEEE 802.11, PPP/HDLC, ATM, Bluetooth, USB, Token Ring, Frame Relay, FDDI, and others (depending on your platfrom)
  • Decryption support for many protocols, including IPsec, ISAKMP, Kerberos, SNMPv3, SSL/TLS, WEP, and WPA/WPA2
  • Coloring rules can be applied to the packet list for quick, intuitive analysis
  • Output can be exported to XML, PostScript®, CSV, or plain text

This is one tool EVERYONE involved in security or network administration should be familiar with.

You can download Wireshark here:

Wireshark v1.0.0

Or read more here.

Posted in: Hacking Tools, Networking Hacking, Security Software

Topic: Hacking Tools, Networking Hacking, Security Software


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iFrame Piggybacking on Google Searches to Install Malware


These spammers and scammers are getting rather clever, and very sneaky. This is still epedemic and seems to be happening more and more. It takes a re-write of many of the large sites online..which frankly isn’t going to happen is it?

It just shows once again the spammers will think of all kinds of weird little tricks to get their goods pimped online

Hackers have found a new way to get Google to point to malicious websites with the help of unwitting websites such as TorrentReactor, ZDNet Asia and several other CNET-owned properties.

As a result, more than 101,000 Google search results that appeared to lead to pages of legitimate sites actually directed end users to sites that attempted to install malware.

The hack, which was first documented Wednesday by Netherlands-based researcher Dancho Danchev, takes advantage of the practice by many sites of logging search queries typed into their search boxes and storing them where search engine bots can see them. The terms are then indexed by Google and other search engines and included in the results they return. Exploiting the weakness is as easy as typing popular search terms into a popular website along with the text of an IFRAME that points to a malicious website. Within time, the strings will be included in results returned by Google and others.

Pretty dodgy eh? These ones are straight installing malware too, not even pointing to phishing sites or straight up adverts/porn sites.

This is going for mass infection, possible a part of some large botnet operation.

In the second half of 2007, 51 per cent of sites hosting malware were legitimate destinations that had been compromised, as opposed to sites specifically set up by criminals, according to security firm Finjan. In the case here, neither ZDNet Asia nor TorrentReactor were compromised, although the criminals were clearly taking advantage of their strong page ranking and the trust that many end users have in them.

The injected IFRAME redirects unwitting users to sites associated with the Russian Business Network, F-Secure says. The sites try to install malicious programs with names including XP Antivirus 2008 and Spy Shredder Scanner.

The attackers are also notable for the care they’ve taken to cover their tracks. The malicious sites will only attack users who click on the link as it’s returned from Google or another major search engine. Client-side honeypots or security researchers who merely type the address into a browser will receive an error message indicating the site is unavailable.

Even if the site itself is secure, a small architecture flaw allows things like this to flourish, apparently ZDNet Asia fixed the issue. There are still 100’s of other large sites still effected though.

Source: The Register

Posted in: Exploits/Vulnerabilities, Malware, Spammers & Scammers, Web Hacking

Topic: Exploits/Vulnerabilities, Malware, Spammers & Scammers, Web Hacking


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