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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39 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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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). ...
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5answers
8k 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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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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1answer
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If an attacker can inject any code into an email client on a users computer, how can he compromise confidentiality, integrity and availability?

I have an upcoming exam for a Security course. The following question has come up a couple times in past exams and I could use some help formulating an answer. Suppose a user downloads an unsigned ...
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1answer
116 views

Based on these HTTPS requests what type of attack is this?

I'm seeing over 1000 attempts to hit my API endpoints with many 500 responses. It seems clear that the would-be attacker is attempting to poke around the APIs, but it isn't clear to me what type of ...
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49 views

Difference between Attack Pattern and Attack Vector

I am learning about InfoSec and I always found these two terms Attack Pattern an attack pattern is an abstraction mechanism for describing how a type of observed attack is executed Attack Vector a ...
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70 views

Attack while using a VPN? [closed]

While I was using a VPN, suddenly all websites refused to connect in HTTPS, and Firefox warned me since I enabled HTTPS-only mode. Is there a chance that this was an HTTPS downgrade attack? Should I ...
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28 views

How to obtain PRGA file using aireplay-ng chopchop or fragmentation attack

I am running Kali linux 2020.3 on VBox on Windows 10. I put my wireless card AWUS036ACH chipset Realtek RTL8812AU in monitor mode using airmon-ng start wlan0 X (by x i mean the number of channel AP is ...
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51 views

When MAC flooding, why would an attacker specify IP addresses and/or TCP ports?

I'm specifically referring to the macof tool (part of the dsniff package). As I understand it, MAC flooding is meant to overload a switch's CAM table, which maps MAC addresses to switch ports. Where ...
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1answer
108 views

Can ISP deanonymize Telegram public channel creators?

In a Telegram public channel, all messages are public, send by the channel creators and contain a timestamp. Suppose I am an ISP. Can I analyse the traffic of all my clients and decide if they are ...
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97 views

What could be recovered after an interrupted ransomware attack?

Four days ago my PC got phobos ransomware. I didn’t notice until three days ago, and the reason is that the attack stopped midway, leaving some of my data as it is and not leaving behind any ransom ...
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2answers
44 views

How to understand a single packet embedded with multiple requests?

When I read Multi VERB Single Request: This Attack is also a variation of the Excessive Verb Attack strategy. The attacking BOT creates multiple HTTP requests, not by issuing them one after another ...
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1answer
96 views

Insider threats vs. insider attacks

I understand that a threat is a possible security violation that might exploit the vulnerability of a system, and a attack is an action on a system that harms the organisation in some way. Therefore, ...
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1answer
46 views

Booting 'live' form the hard disk

I use VeraCrypt for file-container level encryption for all of my files. But being very paranoid, I am always worried about the OS1, Primary applications and non-primary applications leaking the data....
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1answer
196 views

How to prevent XSS attack on selected window.location in javascript

This is my code where i have a userId in a method SwitchUser_Click. I need to prevent or somehow encode the return value from the switchUser_Click as it includes the UserId of a user vulnerable to ...
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67 views

How are accountgenerators with captchas still possible?

I was asking myself, how there are still account generators (e.g. for Steam) wide available for everyone. With account generators I mean programs, that are automatically creating a huge amount of ...
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2answers
68 views

Can a Slow Post HTTP attack be done from a single client?

Can a Slow Post HTTP attack be done from a single client? The following source cites this line: https://medium.com/fantageek/understanding-socket-and-port-in-tcp-2213dc2e9b0c Ports are 16-bit numbers,...
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1answer
2k views

Hijacking stale DNS entry to point to your own website

Context and system configuration: AWS EC2 instance with a public IP address AWS Route53-managed DNS with a somesubdomain.somedomain.io pointing to the above IP address Above AWS EC2 instance was not ...
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7answers
7k views

How to secure a mobile app against its user?

I have created a mobile application that monitors the accelerometer activity and based on that it rewards the user if a specific pattern is observed. How I can secure the application against the user ...
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99 views

What type of attack is this? '[0]

This is the example query: GET directory/file.txt?lang=it'[0] HTTP/1.1 I don't know what language it is. The ' (single quote) reminds me of a SQL Injection. I don't think it's a typo because I saw ...
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1answer
96 views

using Uuid for security

I read that uuid does not bring any security advantages But I can't find why It doesn't bring a little bit of extra security in the scenario below ?: Consider that right now the session id is ...
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1answer
43 views

Are Thunderbolt-enabled computers without Thunderbolt ports vulnerable to Thunderspy?

Could these two attack scenarios exploit the recently publicized vulnerability? Using a Thunderbolt adapter like an USB-to-Thunderbolt adapter on a computer without any Thunderbolt port Temporarily ...
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1answer
67 views

Spam link sets cookie(s) then redirects to google.com - what would be the point of this? Should I be concerned?

Received a spam link about "a package soon to be delivered" via an SMS message. Didn't click it in my phone, but couldn't help myself but to go to the URL in a browser on my laptop :grimace: (not ...
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Architecture of smartphone security: why FBI needed apple's help? [duplicate]

I want to focus on technical aspects, not on the fact that they wanted to make a precedence. i assume the smartphone security architecture is following: cryptography chip. it's read only and ...
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24 views

Creating a Secure Modern MMO From the Ground Up [closed]

MMOs have been around along time. As a result, there are lots of past attacks on MMOs that we can learn from and apply to a modern MMO. As a security novice, I was wondering if in today's climate you ...
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93 views

System Process PID 4 Attempt to connect to many risky IPs using local port 137 [closed]

I noticed in our APT solution that many endpoints in my company initiate connection attempts: Process initiate: system process PID 4 Remote risky IP 185.94.111.1 remote port: random remote ports ...
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2answers
85 views

My VPS was used for DDOS Attacks [duplicate]

I got an email from my hosting provider telling me that my VPS was used to perform DDOS attacks on this website: cpanel4.vhosting-it.com. Unfortunately I haven't read their email sooner, so they ...
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1answer
75 views

Attacking through an open but not listened port [duplicate]

Let us say, we open a port, say port 123, so that upon listening, an application on the server can receive incoming packets through the port 123. If there is no way that an inside application on the ...
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40 views

AWS EC2 instance traffic spike on port 80

We received an "abuse report" from AWS indicating we may have experienced a DDOS attack. From what i could see there was definitely some spikes in the last two days. According to AWS it was through ...
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1answer
115 views

Is there a way to lock down a network? [closed]

If supposing I discover that my network is being attacked by some hacker or is being compromised in any way and I am able to detect it. So, is there any software-oriented way of 'locking-down' the ...
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51 views

Disguising attacks through well known bugs

In the movie "Minority Report", the Precogs can foresee murders and store in video log files that can be inspected in the future. There was a known "won't fix" bug where these visions would "echo" and ...
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25 views

Which kind of attacks could be done on CoAP protocol?

I'm a student and I'm studying the security of the CoAP protocol. So, thinking on the attack-surface my thought was about internal attacks (i.e inside the network) and the external attack (i.e. ...
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29 views

Why does a tool that analyses unidirectional traffic provide conditions for a Fake Session attack?

When I read this document about Fake Session Attack: Bearing in mind that today most networks have asymmetric traffic routing (in which incoming and outgoing packets are being sent via different ...
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1answer
313 views

How to find buffer offset for Return to Libc Attack

I am trying to find the buffer for where the implement my buffer overflow attack The lab link is also here: https://seedsecuritylabs.org/Labs_16.04/PDF/Return_to_Libc.pdf How I find X Y Z in a ...
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2answers
244 views

Can cross origin iframe be detected in web logs

A recent blog post shows hackers owning a web server - at least the content and injecting a web skimming attack. https://blog.malwarebytes.com/hacking-2/2020/03/criminals-hack-tupperware-website-with-...
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Name of 'smart brute force' attack against sequential cipher lock [duplicate]

I remember learning about an attack against sequential cipher locks - ones that don't have a 'reset' or 'enter', you just enter digits and as soon as the last n consecutive entries match, the lock ...
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1answer
417 views

There seems to have been an attempt to attack my website [duplicate]

I am using PHP as a server side language. And I don't use CMS or Framework. From the nginx log the website attack seems obvious. I wonder what kind of attack the attacker attempted. The attacker ...
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1answer
145 views

What type of activity at the WAN port of router can cause massive data uploads, when no devices are connected? [closed]

I have Airtel Broadband PPPoE connection with Public Dynamic IP assigned to my router Dlink DIR 615 (It’s old model and now discontinued). Intermittently I have noticed instances of unusually high ...
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0answers
102 views

Unknown website tries to connect to my website [duplicate]

A few minutes ago an error popped up on my error tracing app. I'm hosting a Django app which has login system. The error says: Invalid HTTP_HOST header: 'www.moxing.one'. You may need to add 'www....
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1answer
512 views

exploiting CVE-2020-0668 problem

I've been trying to get mentioned security error working on my machine so I could fully understand how it works. I've been following those instructions: https://itm4n.github.io/cve-2020-0668-windows-...
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1answer
182 views

How dangerous are SWEET32 and LUCKY13 vulnerabilities?

I wonder how vulnerable are Sweet32 and Lucky13? I mean, how often do the attackers use these vulnerabilities to gain access?
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Bypassing Secure Boot in System on Chip

To bypass a secure boot for System on Chip (SoC), some attacks target the phase of copying the bootloader from where it is stored to the main memory. Instead, a malicious code will be copied to the ...
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1answer
102 views

What should I do during the Man in the middle attack? [closed]

I have a question about Man in the Middle attack. What should I do during the Man in the middle attack? In case I am already connected with a friend of mine on the net, but I suspect that there is ...
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65 views

What are the main differences between a covert timing channel and a covert storage channel?

I am trying to find the differences between a covert timing channel and a covert storage channel in terms of detectability, performance, features, and any other advantages and disadvantages. Is ...
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2answers
141 views

See the contents of https/ssl data weeks after leaving the wfi

I just recently broke up with my ex boyfriend, I am not computer smart but he is, scary computer smart and can basically do anything, with lots of schooling and whatever it is he does for work... I ...
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6answers
19k views

Can malicious code fit in 14 bytes?

I was reading this The New York Times (NYT) article about the hack of Jeff Bezos's phone. The article states: The May 2018 message that contained the innocuous-seeming video file, with a tiny 14-...
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1answer
127 views

Attack that stops internet access for several minutes

I have a question that might sound a bit weird: A friend of mine (Person A) is being attacked by a former friend (Person B) and now person A asked me for help. Person A and Person B know each other ...
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5answers
18k views

My email address is being used to enroll for online services. Should I be concerned?

Just before Christmas I received the following message in one of my GMail accounts: Sign-in attempt was blocked ********@gmail.com [redacted by me] Someone just used your password to try to ...
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0answers
583 views

TCP reset attack / forged TCP reset prevention

How do you prevent someone from doing an TCP reset attack between client and host without having acess to host? I am trying to solve a CTF for fun and learning purposes. In one of the challenges I ...

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