This opens up a whole new way of thinking, a whole new way to attack the problem, and more important than that, a whole new way of living. What are my core topics? Can I mind map them? Could you make a list of all the subjects you care about the most? Ones you could feel like a semi-expert in a discussion.
Exploring a piece of software tends to expand the testing plan, and create lists of questions. Our testing started with the happy path and quick attacks. These first steps help to get a feel for the software, this continued process of exploration is then developed into a list of components to investigate while we are working on the feature. Exploration naturally leads to more questions, and the possibility of adding more nodes to our test plan. Moving beyond quick attacks is partially a game of awareness. What did we learn from the initial quick attacks, and how can we use that information to learn more about our software?
To run Xmind, you can create a .desktop file manually, however, you can also let Unity do the job for you, as explained here and here. An Xmind icon is automatically copied to /.local/share/icons/xmind.png for local use.
USAGE: -This script works with "XMind_amd64" only (not i386, 32-bit)! Tested with Ubuntu 16.04.2 -Best to just copy this script file into the same directory as the downloaded xmind-8-update1-linux.zip file (or whatever you called it). -This script will create a final direcoty 'xmind8' to install into but you need to pick where you want that 'xmind8' directory if you don't want the default of '$HOME/.local/bin'.
function _installXMind8 { ##user preferences seemed to be saved into: xmind/workspace/.metadata/.plugins/org.eclipse.core.runtime/.settings/ ## a beta DEB package ##To find the icon images: $ find /bin/xmind8 -iname xmind.*.png #[[ ! -f "$fileZip" ]] && wget -t 4 -O xmind8.zip " -8-update1-linux.zip" ##xmind.net is blocking non-browser downloads [[ ! -d "$installDirRoot" ]] && mkdir -pv "$installDirRoot" unzip "$fileZip" -d "$installDirRoot/xmind8" "$installDirRoot/xmind8/setup.sh"
The modern ransomware craze began with the WannaCry outbreak of 2017. This large-scale and highly-publicized attack demonstrated that ransomware attacks were possible and potentially profitable. Since then, dozens of ransomware variants have been developed and used in a variety of attacks.
The COVID-19 pandemic also contributed to the recent surge in ransomware. As organizations rapidly pivoted to remote work, gaps were created in their cyber defenses. Cybercriminals have exploited these vulnerabilities to deliver ransomware, resulting in a surge of ransomware attacks.
In the year 2023 alone, attempted ransomware attacks have targeted 10% of organizations globally. This marks a notable rise from the 7% of organizations facing similar threats in the previous year, representing the highest rate recorded in recent years.
After ransomware has gained access to a system, it can begin encrypting its files. Since encryption functionality is built into an operating system, this simply involves accessing files, encrypting them with an attacker-controlled key, and replacing the originals with the encrypted versions. Most ransomware variants are cautious in their selection of files to encrypt to ensure system stability. Some variants will also take steps to delete backup and shadow copies of files to make recovery without the decryption key more difficult.
While REvil began as a traditional ransomware variant, it has evolved over time-
They are using the Double Extortion technique- to steal data from businesses while also encrypting the files. This means that, in addition to demanding a ransom to decrypt data, attackers might threaten to release the stolen data if a second payment is not made.
The original mind-map I created to help people document their threat models with references to the type of attack, in the hope that this might help them find the relevant entry is below and I have also now slit this out into a series of six smaller mind maps for each of the stride categories here.
An employee stealing intellectual property to take to a new job or a fat-fingered administrator making a critical configuration error are examples of breaches caused by someone inside the network. Often, an outside attacker takes over a legitimate account:
To thwart attackers pursuing horizontal kill chains with pass-the-hash and related methods, Microsoft has delivered a reference architecture and other best practices that seek to isolate privileged credentials. Microsoft recommends a new security model, the Enhanced Security Admin Environment (ESAE), for holding the accounts that require additional security due to their privileged access to the production forest. ESAE is a special administrative forest, also known as a Red Forest, used to manage all privileged identities in AD, making it more secure.
AppArmor (app-armor) is an effective and easy-to-use Linux application securitysystem. AppArmor proactively protects the operating system andapplications from external or internal threats, even zero-day attacks,by enforcing good behavior and preventing both known and unknownapplication flaws from being exploited.
JWTs are one of the most frequently used methods to pass caller information in authentication tokens of REST API calls. When JWTs retrieve signing keys from a database using the keyID (kid) header, this itself can become a SQL injection attack vector.
For those too busy to try this themselves, there is a step-by-step walkthrough on how the lab and the attack progresses, but you can also just read the intro for the task description and try to figure it out yourself with the lab.
If you need an overview of JWT and possible JWT attacks, see the recording from my JWT security talk at AppSec California 2020. Isabelle Mauny and I also did a webinar on the approach to externalize JWT security checks.
Once complete, I usually have a good sense of the services running on the box. At this point I can begin identifying several attack vectors, and will further enumerate a few key services before I start actively searching for exploits.
Periodontal (gum) disease is insidious. It is an infection of the gums that starts out as plaque, an opaque film on the teeth that hardens to form tartar. As tartar accumulates, it harbors bacteria that attack the soft tissue around the gums. This is the early stage of gum disease known as Gingivitis. Left untreated, Gingivitis becomes Periodontitis which ultimately destroys the tissue surrounding your teeth AND the bone that holds your teeth in place. Except for bad breath and gums that bleed, there are very few early warning signals. The disease advances silently, often without pain, and before you know it, you are losing your teeth and you don't know why.
Tooth loss is only the most obvious indicator of gum disease. Scientific research has discovered linkage between gum disease and stroke, heart disease, diabetes - even an increased risk for pregnant women. When your gums become diseased, your entire immune system is weakened.
In the past, fear of painful dental surgery has kept people with gum disease from seeking the care they needed. Well, those days are gone forever.
Web application threats continue to cause serious security issues for large corporations and small businesses alike. In 2016, even the smallest, local family businesses have a Web presence, and it is important to understand the potential attack surface in any web-facing asset, in order to properly understand vulnerabilities, exploitability, and thus risk. The Open Web Application Security Project (OWASP) is a non-profit organization dedicated to ensuring the safety and security of web application software, and periodically releases a Top 10 list of common categories of web application security flaws. The current list is available at _10_2013-Top_10 (an updated list for 2016/2017 is currently in data call announcement), and is used by application developers, security professionals, software vendors and IT managers as a reference point for understanding the nature of web application security vulnerabilities.
DOM-based XSS is an XSS attack in which the malicious payload is executed as a result of modification of the Document Object Model (DOM) environment of the victim browser. A key differentiator between DOM-based and traditional XSS attacks is that in DOM-based attacks the malicious code is not sent in the HTTP response from server to client. In some cases, suspicious activity may be detected in HTTP requests, but in many cases no malicious content is ever sent to or from the webserver. Usually, a DOM-based XSS vulnerability is introduced by poor input validation on a client-side script.
DOM-based XSS is typically a client-side attack. The only circumstances under which server-side web-based defences (such as mod_security, IDS/IPS or WAF) are able to prevent DOM-based XSS is if the malicious script is sent from client to server, which is not usually the case for DOM-based XSS.
Typical IPS appliances lack the HTTP intelligence to be able to provide the same level of protection as a WAF. For example, while an IPS may block the tag (if it is correctly configured to intercept SSL), it may not be able to handle the URL decoding required to catch obfuscated attacks.
F5 Silverline is a cloud-based WAF solution and provides native and quick protection against XSS attacks. This can be an excellent solution for deployed production applications that include XSS vulnerabilities, because modifying the application code to remove the vulnerability can be time-consuming and resource-intensive. Full details of blocked attacks (true positives) can be viewed in the Silverline portal, enabling application and network administrators to extract key data in order to profile attackers:
As noted in the previous section, do not expect web-based defences such as a WAF to protect against DOM-based XSS as most attack vectors do no actually send any malicious traffic to the server.
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