-2
votes
0answers
13 views

How can I prevent Microsoft spying? [on hold]

I have some serious files on my computer, but I still want to upgrade to Windows 10 safely. I can't just encrypt them and put them somewhere else, I am working on them, and need to keep working on ...
-1
votes
0answers
8 views

Using a index.php script in my iOS app, what should I do to secure it?

I am really new using web servers and security. I have just written a backend for my iOS app in PHP. It's hosted on a Linode apache server. The index.php us located at http://www.example.com/API/. I'm ...
-1
votes
0answers
8 views

What is the most secure method for web session handling for multiple domain?

Based on the current standing of web security, what is the most secure / recommended method for web session handling: session cookies, cookie jars, web tokens, or anything else? The requirement is to ...
2
votes
1answer
20 views

OpenSSL Certificate Expiry

I'm trying to use OpenSSL to verify that an SSL certificate is still valid, but I keep getting strange results. The example site that I'm testing with (expired.badssl.com) has an expired SSL ...
0
votes
0answers
7 views

Multiple user type management - token based authentication

I am currently working on an e-commerce application. The application has different users: Customers Merchants Logistics Admin The current db structure has a different table for each of these user ...
1
vote
1answer
38 views

Is my modem compromised?

My modem automatically changes its DNS server from Norton DNS server to AdClick server. How do I prevent this from happen again? Is it possible to have protection from these for modem? How do I check ...
2
votes
0answers
14 views

How to analyse a suspicious Encapsulated Postscript file?

How can you analyze an encapsulated PostScript file that has a standard header, but is way too big? There is a EPS file which has a size of 1.8MB. When it is reconverted to EPS, the resulting file is ...
1
vote
2answers
46 views

Yahoo mail hacked - how to recover, how did it happen and how to prevent?

I was yesterday informed by some friends that they received spam mails with my name as sender. The sender addresses look like firstnamelastname@spacepc.pt and firstnamelastname@revistaplot.com with ...
-7
votes
0answers
31 views

What information is hidden in the code [duplicate]

In the below code what email id is hidden ? ...
2
votes
1answer
21 views

Checksum Calculation for Source Code tar balls downloads

Http sites like OpenSSL provide checksum for each source code tarball available for download HTTPS sites like GitHub usually do not provide checksum with 'download zip' option. Some sites although ...
1
vote
2answers
50 views

How long should Windows 10 pins be?

Pins in other contexts seem to usually be only four or six characters long, but this seems to be vulnerable to brute force attacks. However, I am not very knowledgeable about this, so there may very ...
-1
votes
1answer
33 views

Any audited cryptography library? [on hold]

Is there any open source crypto library (C,C++,Java,whatever) that has been audited by well known cryptographers and which is confirmed to be correctly implemented ? By correctly implemented I mean ...
-1
votes
1answer
21 views

Formal functional relationship between risk and CVSS

The Common Vulnerability Scoring System (CVSS) allows, among other things, to quantify the severity of software vulnerabilities. What is the functional relationship between a CVSS and the associated ...
0
votes
1answer
22 views

How to detect port scan on SIEM within LAN or same Network?

Let's suppose a host machine in the client environment has been infected and its performing port scanning on other machine within the LAN or same Network without passing through Firewall: On what ...
3
votes
1answer
85 views

How to protect a Wifi network from Microsoft WiFi Sense

Microsoft is deploying a new feature, WiFi Sense, which provides users a way to easily share passwords to wireless networks with all of their contacts. This introduces a new security failure mode: a ...
0
votes
0answers
14 views

Behaviour of DNS query packet

When the configured name server resolver is not reachable, the query packet will retransmitted after certain t times (in windows, every 1 seconds until 8 seconds,max). The behaviour of the legitimate ...
2
votes
1answer
29 views

How to determine which program accessed the Mac Camera?

The green light on my laptop's camera just flashed on and then off after 1 second. I am extremely concerned about this since I am not running any programs which could have enabled the camera. I ...
4
votes
2answers
324 views

Questions on true anonymity

I am going to use Tails to connect to Tor through VPN which has AES-256 data encryption, SHA-256 data authentication and RSA-4096 handshake encryption on my Mac on my school's WiFi (as public as I can ...
3
votes
1answer
46 views

Do card issuers give merchants new expiry dates for recurring payments?

Recently I got an email from, let's say, “Company X” saying: some banks provide updated expiration dates for automatically renewing subscriptions I find it really hard to imagine that my bank ...
0
votes
1answer
53 views

Scam caller claimed to have elderly friend's “Windows unique identifier”

An elderly friend received a telephone call similar to this Information Security SE post and this one. The caller claimed that my friend's computer had a problem that needed to be fixed. My friend ...
0
votes
0answers
12 views

How secure is the TAP Windows Adapter V9?

I use Cyberghost to browse the web on public wifi. How secure is the network adapter? Cyberghost uses OpenVPN which utilizes TAP Windows Adapter V9. I am asking this, because I believe at the ...
1
vote
0answers
15 views

Mod Security - How can I email alerts from logs for incident response? [on hold]

We are in a production environment and I have mod_security WAF storing logs in /var/log/foo.log . We are wanting to have alerts that we have fine tuned , upon being logged to be sent to us via email ...
4
votes
1answer
34 views

How secure is VOIP?

I was at a friend's house who uses VOIP on his own private WiFi for his phone calls. He made a call over VOIP (Voice Over Internet Protocol) that included the need to verbally state his credit card ...
0
votes
1answer
34 views

What is the difference between Key Derivation Function and (salted) Hash?

I see in this post that the main difference is that KDF outputs have "certain randomness properties", and I don't understand what does it mean. Suposing that that "certain randomness properties" are ...
0
votes
1answer
16 views

Should I use the certificate serial number or the subject key identifier to look up public key?

I'm designing an API authentication mechanism similar to the one AWS use. As part of that, I need to look up which public key belongs to which user to verify. The public keys come from x509 ...
3
votes
4answers
57 views

How can I uniquely identify an user when cookies are not an option?

In web application development, how can I uniquely identify an user when cookies are not an option and IPs are dynamic? Are the patterns which I can combine and then created a hash to be used as a ...
1
vote
1answer
27 views

SQL Injection from Data Import Files

We process a lot of batch files and do an initial batch file import via the LOAD DATA LOCAL INFILE call in MySQL. Is there a tool / standard out there that can scan or help to mitigate SQL injection ...
1
vote
2answers
53 views

ECC and RSA 10K stronger claim

There are a lot of websites where it is claimed something akin to this but no explanation on the basis. "ECC key size of 256 bits is equivalent to a 3072-bit RSA key and 10,000 times stronger than a ...
2
votes
0answers
10 views

Freshness for SGX enclaves

Future Intel processors will support SGX (Software Guard Extensions), which allows running security-critical software on your processor in a way that is isolated from all the other code. The hardware ...
2
votes
1answer
51 views

Simple exploit leads to wrong EIP and EBP

I have a simple program: void bug(char *arg1) { char name[128]; strcpy(name, arg1); printf("Hello %s\n", name); } int main(int argc, char **argv) { if (argc < 2) { ...
-4
votes
1answer
28 views

How to verify perfect secrecy of a cryptosystem? [on hold]

Playing with an encryption algorithm. how can i prove it's information-theoretically secure?
1
vote
2answers
45 views

What measures must be taken to securely authenticate from web traffic to a WebSocket connection?

Obviously TLS is a must for any and all secure authentication. Please turn your paranoia settings up to 11 for this. Background: (In case people are unfamiliar with the WebSocket (WS) protocol and ...
2
votes
1answer
55 views

How do I instantly disconnect from my ISP during an exploit or suspicious activity?

When i was using "Zone Alarm Security" under Windows 98SE (yeah that long ago), there was a toggle link feature under Zone Alarm whereby i could instantly sever connectivity to the web while a ...
0
votes
1answer
53 views

Trying to hack my router with Hydra with no success

My router (Gigaset 604 il) is open only for basic configuration under user name "home" the advance configuration is under the "admin" user. Orange refuses to provide the admin password. I tried ...
2
votes
0answers
83 views

Just how intrusive IS Cortana? [on hold]

According to Microsoft's privacy statement: To enable Cortana to provide personalized experiences and relevant suggestions, Microsoft collects and uses various types of data, such as your device ...
0
votes
2answers
68 views

Persistent XSS in Blogger domain

I have discovered persistent XSS in blogger domain. I have reported vulnerability to Google Security Team and I received this is the response: Users are permitted to place arbitrary JavaScript, ...
0
votes
1answer
66 views

How to Perform SQL insert or update command using SQL injection

I have a URL http://localhost/usernfo.php?id=8 on which SQL injection can be performed. How can I perform an Update, Insert or Delete command from this link after I have got the structure of the ...
0
votes
3answers
75 views

Is this code javascript vulnerable to DOM based XSS?

Code : <script> document.theform.reference.onchange = function(){ var id = document.theform.reference.selectedIndex; var url = document.theform.reference[id].value; ...
2
votes
4answers
80 views

Can data be forensically retrieved off an encrypted hard drive?

If a hard drive is encrypted, is it still possible to retrieve data off of it? What about if the password to decrypt it is known? If this is the case, given that OSX now encrypts your drive by ...
0
votes
0answers
17 views

Restricting Vmware View Copy/Paste functionality

Does anybody know if it's possible to restrict VMware View copy/paste functionality depending on the source of the client? It seems VDIs can have GPOs set to configure copy/paste functionality, but ...
0
votes
1answer
34 views

using cipher suite: deployment commands

Can someone point me in using the correct openssl commands to use a certain cipher suite. For example DHE-RSA-AES256-GCM-SHA384 (not using ECDH suite because of supposed NSA backdoor ...
11
votes
2answers
2k views

Is sending a string (representing a HTTP message) over SSL the same as sending a HTTPS message?

I want to communicate from an embedded device that only has SSL for encryption with an intranet-server that can receive HTTPS. Will SSL encrypted HTTP string be interpreted as HTTPS? or is there more ...
-1
votes
1answer
60 views

How separated should a management VLAN be from the production VLAN?

I was after a little bit of advice regarding Network Management. Users will enter the network and hit a remote desktop server. On from this, they will pass through firewalls to the core switch. When ...
1
vote
1answer
87 views

Can data be tampered with after expert clones a drive?

Introduction 3 computers were sealed and taken from a persons apartment. Investigators invited him to unseal the PCs, they were intact and they started the cloning process, however the hashes were ...
0
votes
1answer
67 views

A sneaky way of disabling Microsoft Security Essentials?

For a long time I've been dismissing and ignoring this popup, which is easy since it only appears at boot (or logon) which is once every few months: But recently I became suspicious after a crash ...
0
votes
0answers
137 views

Does Microsoft Edge (Spartan) share Cookies, Cache, Passwords, or TLS Certificates with Internet Explorer?

Windows 10 was released with a new browser called Microsoft Edge. Interestingly, Internet Explorer is also installed on the same default install. Given that Chrome and Firefox tend to separate their ...
10
votes
5answers
1k views

Input Sanitization vs Output Sanitization [duplicate]

In the bits that I've searched about this, I've seen a few people declare as word-of-god that you should only sanitize outputs and not inputs. Why? Would it not be safer to cover both ends?
-1
votes
0answers
23 views

How to handle the aftermath of a possible firewall compromise? [on hold]

Today while I was away at work, my router and one of my Windows boxes both spontaneously rebooted, at roughly the same time. After this, the firewall failed to start DHCP and Apache services on ...
1
vote
2answers
74 views

LAMP MailServer without SSL… so what's the problem?

I want to set up a MailServer on Ubuntu for my website, and access the email from my POP3 client without enabling SSL encryption (I suppose the SSL is used to encrypt the password?). My questions ...
0
votes
3answers
51 views

Password help with coding! [duplicate]

So, I'm terrible with any sort of coding, and I need help with generating a series of possible passwords. I've forgotten the combination of a password I put in for an email - I know the password, just ...

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