Bold Statements
Starting a post, in 2019, with a mention of sth being “IPv4-only” somewhat hurts ;-), but here we go. Recently Manel Rodero from Barcelona asked me the following question on Twitter:
Continue reading “IPv6 Security in an IPv4-only Environment”
Continue readingSome years ago Christopher wrote two posts (2016, 2015) about the IPv6-related characteristics of the WiFi network at Cisco Live Europe. To somewhat continue this tradition and for mere technical interest I had a look at some properties of this year’s setting.
Continue reading “Some Notes on the IPv6 Properties of the Wireless Network @ Cisco Live Europe”
Continue readingAt first a very happy new year to everybody!
While thinking about the agenda of the upcoming Troopers NGI IPv6 Track I realized that quite a lot of IPv6-related topics have been covered in the last years by various IPv6 practitioners (like my colleague Christopher Werny) or researchers (like my friend Antonios Atlasis). In a kind of shameless self plug I then decided to put together of list of IPv6 talks I myself gave at several occasions and of publications I (co-) authored. Please find this list below (sorted by years); you can click on the titles to access the respective documents/sources.
I hope some of this can be of help for one or the other among you in the course of your own IPv6 efforts.
Cheers,
Enno
Continue reading “IPv6 Talks & Publications”
Continue readingDue to the new release of macOS Mojave in September we updated the El Capitan hardening guide.
Continue reading “macOS Mojave Hardening Guide”
Continue readingToday I am proud to announce that another paper of my former colleagues from Heilbronn University and me was published in one of the journals with the highest impact factor for Medical Informatics research called JMIR mHealth and uHealth. There is a reason why we published in this journal besides its informatics focus. The journal is an open access journal. That means that readers are not charged on a pay-per-view basis or other business models to access the full text of the paper. In return, the authors need to pay publication fees. In my opinion restricting access to academic research is not a way to go. I think this isn’t a thing we see in the security community often anyway. But this is and was the standard in academia for years.
Continue readingLast week Will “harmj0y” Schroeder published an excellent technical article titled “Not A Security Boundary: Breaking Forest Trusts” in which he lays out how a highly critical security compromise can be achieved across a forest boundary, resulting from a combination of default AD (security) settings and a novel attack method. His post is a follow-up to the DerbyCon talk “The Unintended Risks of Trusting Active Directory” which he had given together with Lee Christensen and Matt Nelson at DerbyCon (video here). They will also discuss this at the upcoming Troopers Active Directory Security Track (details on some more talks, including Sean Metcalf’s one, can be found in this post or this one).
Continue reading “ERNW Whitepaper 67: Active Directory Trust Considerations”
Continue readingAt this years ARES conference, Jonas Plum (Siemens) and me (Andreas Dewald, ERNW Research GmbH) published a paper about the forensic analysis of APFS, file system internals and presented different methodologies for file recovery. We also publicly released a tool implementing our presented approaches, called afro (APFS file recovery).
Continue readingSome weeks ago, I tweeted about grabbing clipboard content from KeePass with some PowerShell. From some reactions to this tweet, and after reading it a couple of times again, I realize it was sending the wrong message, and I would like to take a bit more than 280 chars to clarify what I meant when I posted that tweet…
TLDR: Password managers are a must, not using one exposes you to far more risks than using one. Do it. Continue reading “A little KeePass Mea Culpa…”
Continue readingDuring a recent customer project we identified several vulnerabilities in the VMware vRealize Automation Center such as a DOM-based cross-site scripting and a missing renewal of session tokens during the login. The vulnerabilities have been disclosed to VMware on November 20th, 2017. A security advisory for the vulnerabilities has been made available here on April 12th, 2018. Continue reading “Security Advisory for VMware vRealize Automation Center”
Continue readingIn various scenarios it might be helpful or even required to have a statically compiled version of Nmap available. This applies to e.g. scenarios where only limited user privileges are available and installing anything to the system might not be desirable.
Continue reading “Creating Static Binaries for Nmap, Socat and other Tools”
Continue reading