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Results for feature vulnerability
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222 votes
13 answers
27k views

Is there any reason to not show users incorrectly entered passwords after a successful login?

The website in question is a broad mapping/GIS application that does not feature any monetary transactions whatsoever. … What security vulnerabilities come with implementing such a feature? Our client is not entirely without technical knowledge so a general explanation is enough. …
RaunakS's user avatar
  • 2,043
203 votes
Accepted

Hosting company advised us to avoid PHP for security reasons. Are they right?

There are numerous such services available with varying feature sets, and they are popular for powering contact forms on statically generated sites. … If there were ever a security vulnerability in that process which did not depend on specific PHP code, it could be exploited. …
Alexander O'Mara's user avatar
164 votes

How to explain Heartbleed without technical terms?

What is Heartbeat - the compromised TLS feature? To set up a TLS connection there's a negotiation that's relatively expensive (it takes time). … For completeness, I should mention that this vulnerability should affect anything that may use the OpenSSL library to perform TLS, which isn't limited to webservers; e.g., FTPS servers (but not SFTP), …
dr jimbob's user avatar
  • 39.5k
125 votes
Accepted

Is there a short command to test if my server is secure against the shellshock bash bug?

Is my system vulnerable? If your bash isn't vulnerable then your system isn't vulnerable. … The vulnerability is in a bash-specific feature and other shells such as dash and ksh are not affected. …
Eliah Kagan's user avatar
  • 1,315
121 votes
12 answers
49k views

How can I punish a hacker?

Since then, I have deleted the shells, fixed the vulnerability and blocked the IP address of the hacker. Can I do something to punish the hacker since I have the IP address? …
Elmo's user avatar
  • 1,267
121 votes

Meltdown and Spectre Attacks

Speculative execution is a feature of modern processors that comes as an optimisation. … Which platforms and which CPU are vulnerable? Most of the Intel CPU are vulnerable to both attacks. AMD CPU seems to be only affected by Spectre. …
M'vy's user avatar
  • 13.1k
106 votes
5 answers
15k views

Confirmed evidence of cyber-warfare using GPS history data

Hence the question: Is there any confirmed evidence of actual use of cyber-warfare exploiting the vulnerable GPS data? If so, what are they? …
Be Brave Be Like Ukraine's user avatar
101 votes

How dangerous is XSS?

Below are the things an attacker can do if there is XSS vulnerability. … Stealing HTML5 web storage data - HTML5 introduced a new feature, web storage. …
Gowtham's user avatar
  • 1,033
85 votes
Accepted

Is it safe to allow www-data to execute privileged commands?

The whole point of running Web things as a non-root user is damage containment: in case the Web server process gets hijacked through some vulnerability, at least the attacker won't obtain full control … But if you give www-data a way to run every command it wishes to, with the rights of any user (including root), and without any further authentication, then you just lost that damage containment feature
Tom Leek's user avatar
  • 174k
85 votes
Accepted

How does XSS work?

Using techniques like spam email, message board posts, IM messages, Social Engineering Toolkits this vulnerability can be very dangerous. … Take a look at RSnake Stallowned "attack" which took out Amazon's book preview feature. Quite funny reading. …
Chris Dale's user avatar
  • 16.2k
84 votes
6 answers
101k views

Should RSA public exponent be only in {3, 5, 17, 257 or 65537} due to security considerations?

I contacted developers of this library and got the following reply: "This feature is to prevent some attacks on RSA keys. … I knew only of using 3 with improper padding being vulnerable. Is that really so? Surely, I can use another library, but after such answer I worried about security of my solution. …
Vladislav Rastrusny's user avatar
83 votes

Why do I hear about so many Java insecurities? Are other languages more secure?

It is somewhat speculative why exactly the Sandbox remains vulnerable. … As a result, it is quite possible for a developer to forget about that obscure feature when changing the Java API or its implementation, accidentally exposing things that should be protected (to illustrate …
meriton's user avatar
  • 1,498
80 votes

How does the log4shell vulnerability work?

In short - from my understanding the vulnerability is caused by: treating data for logging as trusted, even though they might come from an untrusted source (like logging the user agent of a HTTP request … Unfortunately this feature was until log4j 2.15.0 enabled by default, even though logging often includes untrusted user input, e.g. logger.debug(userInput). …
Steffen Ullrich's user avatar
80 votes
Accepted

How are all public computers (libraries, etc.) not full of malware?

Additionally, you have to assume that an attacker with physical access can find a local elevation-of-privilege vulnerability at some point. … This feature is generally available, through either built-in functionality or third-party software, for most operating systems. It's got weaknesses of its own, though. …
CBHacking's user avatar
  • 52.3k
74 votes
Accepted

What can an attacker do with Bluetooth and how should it be mitigated?

In the normal case (no vulnerability to allow arbitrary code execution) it all depends on the Bluetooth profiles supported by your device. … (See below) Assuming encryption is a security feature that can be enabled, is it required or is it optional? As in the previous question, it's implementation-dependeant. …
Adi's user avatar
  • 44.2k

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