Questions tagged [attacks]

An attempt to exploit a weakness in a system, either for nefarious or research reasons. Questions with this tag should be about designing, carrying out, or defending against the attack itself, rather than about the underlying weakness.

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60 views

Am I a victim of a possible DNS poisoning or MIM attack? [closed]

I recently ran a BitDefender AV scan which picked up and cleaned the GenericKDZ trojan - a very nasty infection which includes a keystroke logger. I am adamant about security - always changing default ...
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66 views

Could I have prevented my Facebook password from being stolen by these trojan apps? [duplicate]

According to this Dr. Web article: Doctor Web’s malware analysts have discovered malicious apps on Google Play that steal Facebook users’ logins and passwords. These stealer trojans were spread as ...
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1answer
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Is it called Drive-by Compromise if attacker provided his website for user to access?

If the website is legitimate and the attacker exploited that legitimate website, and the attacker gains access to a victim's system that visits the website, then it is a drive-by compromise. However, ...
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19 views

How likely is it that publicly available data will be decrypted in the future? [duplicate]

As we already know, with the rising power of machines and new technologies like quantum computers today's methods of encryption might be much faster to crack in the future. With locally saved data you ...
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1answer
81 views

How to properly deal with WPAD attacks?

I have already read those 3 topics about WPAD attacks but I'm still confused, so I'm here looking for a deeper explanation. CONTEXT I think a WPAD attack is happening in my home and I was not aware ...
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71 views

Routing attacks on Peer 2 Peer networks?

I've started creating a framework that aims to make anything into an IoT device. In order to stay online, a peer 2 peer layer needs to be implemented. On top of it, common point services will give the ...
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50 views

What is this HTTP attack full of backslash encoded data? [duplicate]

I use nginx configured with HTTPS and an unsigned cert to send files to people sometimes. Despite being just an IP address listed no where, I get traffic from various crawlers and other bots. The ...
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2answers
94 views

Are high traffic apps and websites used in DDoS attacks?

Isn't it very simple for one rogue programmer in a big institution to add a small code change in the application/website thereby sending unintended HTTP DDoS attacks? Like is it possible for Tiktok/...
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105 views

Password Strength Determination

Recently, I've checked the some articles including R. E. Smith, The Strong Password Dilemma. ch. 6., Password Strength: An Empirical Analysis, Distance between two passwords and Password strength ...
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1answer
111 views

E-mail with just an image attached: could it be an attack? [closed]

Today I received an e-mail to my GMail account with just an image attached, empty subject and body. E-mail came from another GMail account, with SPF and other checks passed. Sender account differs ...
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3answers
3k views

Concerning GET request in logs

I have a Django application running on a Digital Ocean Ubuntu server. I am using NGINX and Daphne to serve the application because I am using Django Channels. My websockets keep crashing, and I ...
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202 views

How did ntpd get patched to prevent NTP time synchronization attacks?

I recently tested the NTP Time Synchronization Attack as described and demonstrated by Jose Selvi in 2015. Basically, the attack was mostly used to send the victim's clock in the future, so the ...
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1answer
43 views

In which settings is it possible to launch a HTTP Response Splitting Attack but not completely replace the HTTP message?

I wondered in which settings is it possible to launch a HTTP Response Splitting Attack but not completely replace the HTTP message? The examples I saw all allowed full replacement of the HTTP response,...
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44 views

SSL stripping - how is it possible to send back the HTTP page? [duplicate]

Been trying to wrap my head around SSL stripping. An explanation here writes: Keep in mind, however, that when you install SSL, you’re essentially creating a duplicate of your website with HTTPS URLs....
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1answer
171 views

Is Bluetooth low energy (BLE) still secure?

Some time ago, Bluetooth was hit by a severe exploit (KNOB attack) that rendered its encryption pretty much useless. Publishers like the German Heise summarized it in an article* as an issue in the ...
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52 views

Why does Mitre T1203 technique includes macros as software vulnerabilities?

I was reading a recent report about an APT and jumped into this Technique: https://attack.mitre.org/techniques/T1203/ This technique is called: Exploitation for Client Execution And that might match ...
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1answer
311 views

Received a strange text message. What is it? [closed]

This morning I received the following text message from a Gmail account: v3s5f3rs4f3gs3.nf5j4k8j4k3o.solar?G$1?V&?KL?O=$HO?&S?K0?$1T A couple of my friends got it too. I have an iPhone and it ...
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1answer
128 views

Layer7 DDoS Protection vs WAF, which should I use?

I have Layer3 ddos protection, but I want to upgrade it to Layer7 ddos protection. But when i look about Layer7 Ddos attacks, I see that they are usually HTTP/HTTPS based attacks. I have 3 questions; ...
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40 views

I got a call from a contact on What'sApp and that person says they didn't call me even by accident. Should I be worried about using What'sApp?

I got a call from a contact on What'sApp, and when I picked up there was no audio. The person says they weren't even holding their phone when it happened, and it even took a minute for the call to ...
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33 views

How does one label malicious traffic in generated workloads?

I have been writing on some code that automatically puts together differently parameterized attacks of common pen testing tools, i.e. sqlmap, nmap, patator etc. These attacks are then launched against ...
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372 views

How plausible is this article on how SciHub acquires its papers? [closed]

Sci-Hub is a piracy website that provides free access to usually-paywalled academic papers & books. Sci-Hub's owner Alexandra Elbakyan says that many people with legitimate access to the papers/...
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1answer
101 views

Can a hacker install known-vulnerable software on a machine in order to control the PC and elude antivirus?

I recently discovered that on one of my PCs the SolarWinds software was installed. I didn't install this software on my machine. I also saw that SolarWinds was cracked by Russian hackers and also ...
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1answer
68 views

How to exploit open redirect vulnerability which must contain the original url

Let's say I have the following url: https://secure.sub.domain.com/?continue=https://sub.domain.com I found out that I can put anything I want before sub.domain.com in the continue parameter as long as ...
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1answer
616 views

Why are water treatment facilities or similar connected to the internet? [closed]

I have a (sensitive) background in security, in short, I believe that the infrastructures MUST NOT connect to the internet. If you connect to the internet, it is a matter of time before it is breached....
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61 views

Regarding Dictionary Attack

Since most websites will let user retry their password, lets say 3 times in a row, in case of mistype or forgotten password. Exceeding the set number of retry the account will be locked or timed out. ...
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2answers
43 views

What is a reasonable timeframe that should be defined and enforced for access token expiry to reduce the risk of unauthorised access? [duplicate]

What is a reasonable timeframe that should be defined and enforced for access token expiry to reduce the risk of unauthorized access?
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2answers
59 views

Are polyglot microservices (multiple technologies) more secure than using a single technology framework?

As a full-stack cloud-native (AWS, Azure, and GCP) polyglot (Rust, Golang, Python, and Java) microservices developer, the nagging question that I have is if the use of multiple technology frameworks ...
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1answer
107 views

How does one detect and deter golden SAML attacks?

How does one defend, detect and deter golden SAML attacks?
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1answer
57 views

Attacking VPN server's outgoing connections

Due to increasing concerns about privacy online I recently started researching technologies that are supposed to hide our activities from unwanted watchers. I've been learning about workings of VPN ...
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67 views

Why is noreferrer recommended to prevent reverse tab nabbing attacks?

I just read about reverse tab nabbing. Why is noreferrer recommended in addition to noopener? Isn't it enough to have noopener? I assume if neither are sent, there could be Javascript code on the bad ...
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2answers
155 views

Defending against Wiegand sniffing (ESPKey) attacks in RFID card readers

It's known that card readers, which use the Wiegand format, can be attacked by installing a sniffer, such as an ESPKey. After the sniffer is installed, whenever anyone uses the reader, their ...
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3answers
6k views

How does one defend against software supply chain attacks?

In reference to the Solarwinds attack, since many organisations have no access to the source codes of the software vendors from whom they just consume the services, how can organisations defend ...
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61 views

Question on stack overflow

I am preparing for an exam in Computer Security and doing a past-exam without soluions, so I wanted to check if my reasoning holds on a question about stack overflow. Below is the C code in question. ...
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41 views

Problems understanding the use of Distance Bounding against Man-In-The-Middle attacks

I currently have to write a paper for university in my Network Security lecture about methods of secure location verification. Therefore, I chose to write about several distance bounding protocols, e....
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2answers
203 views

SQL injection using brute force?

I am studying about cyber defense lately for fun and found about a proposed method that as I understand it performs automated SQL injection using brute force by training a model. At some point it says ...
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1answer
49 views

Does limiting size of images prevents buffer overflow?

I am writing an app that serves images to clients. The app is written mostly in python. I store the images in AWS s3 and serve the clients them directly from there. Am I vulnerable to buffer overflow ...
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1answer
63 views

How plausible are cyber attack attributions between states? [duplicate]

When an attack on IT systems of a state is discovered, often another state is publicly blamed for it within a few days. I wonder whether these attributions are plausible from a technical point of view....
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1answer
56 views

CSRF payload delivery

If an attacker successfully delivers a CSRF payload by any means, what response can he can see once a victim clicks the link?
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2answers
106 views

Basic questions about a buffer overflow attack example

People say buffer overflows are serious security bugs that can usually be exploited. Here is an artificial buffer overflow #include <stdio.h> int main(){ int a[3]={0,1,2}; printf("...
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2answers
207 views

Does a hacker know which IP they hacked?

Suppose someone hacks my computer (by any means, say a virus or trojan like RAT), will they be able to know my IP address in real time? This is about dynamic IP addresses.
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1answer
544 views

What is the Plundervolt attack?

CVE-2019-11157 exposes a vulnerability in the undervolting API from Intel processors, that became known as the Plundervolt attack. What is the Plundervolt attack? Should domestic users be afraid of ...
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28 views

Commercial VPN Connected Devices Security [duplicate]

Would clients of a commercial VPN service be able to see each other's devices with NMap or a similar tool? What potential security consequences may transpire because of this threat? TIA
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86 views

Can/should I automatically report network break-in attempts?

For the last 15 years I've been using SpamCop to report the spam I receive. I do this because it sometimes results in spammers and the third-party machines they compromise getting shut down, at ...
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0answers
56 views

How good can X-Frame-Options HTTP header do against click-jacking?

X-Frame-Options HTTP header is used to tell if a webpage is allowed to be used in a frame/iframe. Frames can be used for click-jacking/UI-redress attacks. It is advised to set X-Frame-Options to '...
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1answer
245 views

Attack scenario when using split tunnel VPN

Background As many others I am working from home and we use a VPN to access services from the company intranet (SMB fileshares, git repo, project management etc). To improve things like video calls I ...
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1answer
149 views

Security implications of a fixed vs relative pathname

What would be some security implications of a fixed pathname (although probably in a system directory when it would be deployed as a system service) rather than a relative (out of current directory)? ...
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1answer
388 views

INTEL-SA-00086 extracting the secret key used to encrypt Intel CPU code: is the digital signature bypassed?

In a recent attack to INTEL-SA-00086, the researchers are able to extract the secret key that encrypts updates to various Intel CPUs. In the arstechnica blog it is mentioned as The key may also allow ...
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1answer
62 views

Getting an abnormal amount of firewall warnings on web server

I just had a look at the firewall status and saw it had blocked over 300 requests from TOR, Python Urllib, and some script called aabbccdd.xss.ht/pigeonburger.xyz (pigeonburger.xyz being my website). ...
26
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5answers
10k views

Can a website steal passwords saved in my browser?

Today I was on Steam and someone sent me a link and asked me to vote for him in some online gaming league. I clicked on it and the browser told me that this could be an unsafe link so I didn't proceed ...
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1answer
351 views

Are there any contactless (RFID/NFC) card vulnerabilities that are still unsolved? even minor ones

The title is pretty self explanatory. The market is pretty secretive about these kinds of matter since companies won't give out vulnerabilities for attackers to abuse and will give out vulnerabilities ...

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