The elimination or reduction of the frequency, magnitude, or severity of exposure to risks, or minimization of the potential impact of a threat or warning.

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1answer
31 views

Threat Modelling Examples (Distributed Systems)

I have threat modelled applications in the past, but I'd like to threat model a distributed system. However for other people I'm with, who have never done it at all, I'd like to check out some ...
3
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2answers
1k views

What OS's will “brick” a stolen phone; preventing their use or resale by a potential thief?

You can look at this question in two ways: Prior to purchasing a used phone, I want to ensure that the IMEI is not locked and I'm able to use it fully. Or you can be a purchaser who wants to devalue ...
0
votes
1answer
666 views

How do I force kill an OWA, Activesync, or Outlook session?

A user with a BYOD is still able to access the email system, even after the user account has been disabled and password changed. Since it's clear that a re-authentication event doesn't continually ...
32
votes
5answers
42k views

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

What are the security risks of Bluetooth and what technologies and best practices should be used to protect my device? What can an attacker do once a malicious device is paired with mine? ...
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1answer
24 views

Spam protection for public GPG keys?

Public keys published to a server almost always contain emails. Is there any sort of protection against bot harvesters that will use that email for spam?
1
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2answers
59 views

Deep Packet Inspection: Any real world examples of threat mitigation via DPI? [closed]

So I understand conceptually how DPI works, but I'm a little skeptical regarding the actual benefits of this technology. Considering the possible risks associated with deploying DPI, i.e., decrypting ...
3
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2answers
119 views

Secure Android app development [closed]

I'm beginning with Android App development and I want to make sure that I'm taking the proper security precautions since most apps will handle sensitive data. What security precautions should be ...
16
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3answers
6k views

What risks do Cookieless sessions have? What are the mitigations?

I'm debating if I should support cookieless sessions in my web app. It would look something like this: http://www.example.com/(S(lit3py55t21z5v55vlm25s55))/orderform.aspx Since the URL is never ...
37
votes
11answers
33k views

DDoS - Impossible to stop?

Is it possible - in theory - to stop1 a DDoS attack of any size? Many people claim it's impossible to stop DDoS attacks and tell me I just shouldn't mess with the wrong people on the internet. But ...
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0answers
22 views

How do I stop MacBook port scanning & fragment packet attacks

How can I stop OSX El Capitan from port scanning and stop fragmented packet attacks?
1
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1answer
70 views

Usablity vs security malicious file upload

We were designing a web application which has the functionality similar to vulnerability management, our web application functionality can be briefed as follows: There is a panel where one can ...
0
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2answers
58 views

How do I protect a secret from rubber-hose cryptoanalysis?

So let's suppose I have a secret file. Assuming I don't remember/know the contents, how do I insure it is protected against the rubber-hose cryptoanalysis no matter what, even if I break under ...
4
votes
2answers
542 views

Possible to detect an/or shut off CryptoLocker by limiting total network bytes transferred?

Since a virus infected PC has to download (encrypt) reupload the entire file (to a file server), and repeat the process for every network drive, is is possible to detect this unusually high bandwidth ...
4
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2answers
408 views

ASLR Randomization BSS

When I asked this question before, it was close and voted negative, I definitely feel bad about it. But I would really like to know the answer, so I ll make it more clear this time. Here is some ...
2
votes
0answers
69 views

Open source firmware as mitigation against firmware persistent malware?

I am concerned about the threat of persistent malware entrenched in device firmware. I am not familiar with the intricacies of firmware security, so I am turning to SE for help. I recently learned of ...
15
votes
8answers
21k views

Encrypting files on Google Drive

It's my understanding files kept on Google Drive are not protected. I would like to have them encrypted so that to be able to view or modify them one must enter a password. I foresee a potential ...
9
votes
6answers
1k views

What is preventing the widespread common use of MAC-type systems?

Overall question What is preventing the uptake of MAC systems such as SELinux/AppArmor in corporate and desktop computing environments? Why don't you think it isn't already widespread? I do not ...
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3answers
203 views

How can i prevent my phone from spying through sms

Recently while reading up a article over here ,The following were the summary : hacking suite dubbed Smurf Suite, it can hack any mobile by sending an encrypted text message So based on the ...
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0answers
46 views

What is “Intentionally misleading Artificial Intelligence to create a misleading outcome” called?

I'm writing about a computer system that relies on Artificial Intelligence and the threats that this may include. One threat vector (for example) is to seed Bayesian AI with content to skew the ...
2
votes
2answers
613 views

Odd url showing up in my pubsub stream, should I be concerned?

Background: Yesterday I started working on a simple metrics dashboard. I have a VBScript on my internal network that queries a database over a VPN from our Vendor. I then do a simple HTTP post to a ...
5
votes
2answers
93 views

Is there a HSTS equivalent for specifying TLS version?

HSTS allows me to force clients to connect to my website using HTTPS, but it doesn't specify the version of SSL, TLS, or what ciphers I'm prohibiting. Is there any HSTS alternative or extension that ...
3
votes
0answers
42 views

What is “half PFS” protection, and what protocols or configurations apply to it?

I'm looking for a list of scenarios and protocols that are vulnerable (or not vulnerable to) half-PFS protection. Half PFS, as I understand it, is where the communication between a client and server ...
8
votes
2answers
2k views

Do any Exchange hardening guidelines recommend disabling OWA Webready? Should they?

For the fourth time in over a year, Exchange OWA has put our internal network at risk due to a remote code execution flaw that exists on the server runtime. This risk is compounded by the fact ...
3
votes
1answer
120 views

Is there an HSTS equivalent for DNSSec?

Is there any way to set a DNSSec-always policy similar to how HSTS commands Web Browsers to always use HTTPS? This would mitigate a DNSSec-strip attack (similar to SSLStrip) I'm also unclear if this ...
1
vote
1answer
59 views

Is there a vulnerability when TLS is decrypted, then encrypted with OpenSSL that is vulnerable to BEAST or CRIME?

Assume that the following TLS proxy exists User <-----> Load Balancer that decrypts, encrypts <------> WebServer Where the web server is running a vulnerable version of OpenSSL. Can ...
2
votes
2answers
2k views

Logging and Metrics for DEP, EMET, and Related Mitigations

Is it possible to collect metrics or generate alerts when one of EMET's suite of mitigations prevents code execution? Ideally I'd want to be able to collect and analyze data to support statements ...
3
votes
4answers
3k views

How to mitigate SSL based DDoS attacks?

as you probably know the problem with SSL based DDoS attacks is, that the traffic cannot be analysed and filtered by a DDoS mitigation service provider such as Prolexic, Akamai, Radware, etc. without ...
3
votes
2answers
101 views

Where to check if a specific OS / service is vulnerable despite being patched, because of a vendor's decision?

I need to discuss how to mitigate the risk of services which are vulnerable despite being patched (typically because they are not maintained by the vendor anymore, or because the vendor does not want ...
5
votes
2answers
1k views

Are phone apps vulnerable to XSS or CSRF? (Webview, Phonegap, chrometab)

I need to provide evidence that CSRF or XSS is possible on a phone... using PhoneGap, a Webview, or specifically a "Chrome Tab" or iOS equivalent. I believe in theory this is possible, and mitigation ...
15
votes
2answers
810 views

Why does rfc6797 say “An HSTS Host MUST NOT include the STS header field in HTTP responses over non-secure transport.”

Why does the RFC prohibit the server from sending HSTS to the client over HTTP? I can see that if a HTTP client responds to that unsecure HTTP response it might cause that site to be inaccessible ...
1
vote
1answer
56 views

Data breach policy - immediate actions

We have a web application server and a database on AWS. Is there any "immediate action" policy somewhere we can adopt as to the steps we can take when we suspect or detect a data breach?
47
votes
11answers
9k views

Are there “secure” languages? [closed]

Are there any programming languages that are designed to be robust against hacking? In other words, an application can be hacked due to a broken implementation, even though the design is perfect. ...
5
votes
3answers
391 views

What steps can you take to make offline cracking of SRP harder?

In the aftermath of the Blizzard hack, what steps can I take to make offline cracking of SRP more difficult? My question assumes that your database is already gone and that you implemented SRP more ...
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votes
2answers
98 views

Security devices other than firewall and IDS [closed]

I was just studying about firewalls and IDS/IPS and had a doubt. Are these the only two major security devices that a company invests in? or are there other equipment and security controls?
1
vote
1answer
113 views

Possible to use custom SSL or TCP/IP packets to detect VPN use?

What custom TCP/IP packets or other statistics can I use to detect VPN usage? I understand that this may generate a number of false positives, but my goal is to focus analysis on certain types of ...
1
vote
3answers
357 views

Installed some software over a public insecure wireless network — should I consider myself compromised?

A couple months earlier, I made the mistake of downloading some software over an insecure wireless network and running it without checking its integrity. I am now considering reinstalling my system, ...
2
votes
0answers
47 views

In DNSSec, are Delegation Signer Records always SHA-1?

I'm creating a RSA/SHA-512 Zone Signing Key and Key Signing Key at Dynect Managed DNS (corporate offering) The Delegation Signer Record that was created is SHA1. Should I be concerned about this?
1
vote
2answers
502 views

Mitigation against MITM at Starbucks

Free public WiFi, for example Starbucks, is convenient. I wonder if there is a way to verify that a laptop has connected to the Starbucks wireless router and not to a man in the middle that tricked ...
6
votes
1answer
289 views

Is it unwise to use Redis to store PII, private keys, and other secrets?

I'm reviewing a system that is using Redis to store all client secrets, private keys, and other things. The problem is that Redis loads the entire DB into RAM Since SSL's heartbleed, Rowhammer, and ...
1
vote
2answers
956 views

How should developers handle Form POST variables that conflict with route variables?

In ASP.NET MVC, when I perform a HTTP post to /controller/action/UserID ... and have a corresponding route /controller/action/{UserID} ... and if I do a Form POST, the POSTed data UserID ...
1
vote
0answers
164 views

Can a Radius server mitigate an ARP spoofing attack?

I'm helping my school network administrator to try to find a way to mitigate a current ARP spoofing attack on our wifi network. We detected an unknown host (MAC address seem to change, he is probably ...
1
vote
1answer
342 views

How does Wifi Blocking work? Can it be detected / prevented? [duplicate]

Marriott was accused of blocking personal Wifi access points by deauthenticat[ing] packets sent to targeted access points and thus to disrupt access to individual hotspots. Question How does ...
3
votes
4answers
839 views

If an ATM is stolen, how easy can the personal information of the users be recovered?

ATMs get occasionally stolen. How easy would be for the thiefs to retieve the PINs and other information of the users that have previously used the ATM? Is there a periodic wipe of all ...
6
votes
2answers
2k views

How do I block LinkedIn from extracting data from Microsoft Exchange Server?

LinkedIn now offers the ability to take a real user and password from the end user and connect to Exchange Server for the purpose of importing contacts into their system. (To do this yourself, click ...
13
votes
4answers
2k views

Possible to prevent Juice Jacking by only connecting USB pins 1 & 4?

According to this accepted answer, there is no phone on the market today that is immune from "Juice Jacking"*. I think an easy way to mitigate this threat is to have a filter that blocks USB pins 2 ...
13
votes
2answers
2k views

Linux password changed. Is this an attack or a hardware glitch?

My Linux (Ubuntu 12.04) password suddenly changed last night and I'm not sure if this is an attack or just a hardware/user error. This is on a personal/non-server box. Several strange events led up to ...
1
vote
3answers
76 views

How can I mitigate attacks that rely on poisoned data as a developer?

A few years ago, there was a high-profile attack on a Wired editor, where the hackers added a credit card to the target's amazon account, then used that self-added credit card to gain access to the ...
8
votes
1answer
138 views

What considerations should apply for self service Renewing, Revoking, or Unrevoking a certificate?

I need to design a self service portal for renewing, revoking, and unrevoking a certificate and have come up with the following rules*: Renewal Certificates have a short term validity and need to ...
2
votes
2answers
2k views

How do I Mitigate Directory Traversal when User-Supplied Input is a Mandatory Business Case?

I have an instance where we have an application that requires the ability to set up sftp commands that are specified by administrative users. They are configured through the front-end of the ...
2
votes
2answers
155 views

What's the mitigation strategy for when a CA's private key is stolen?

I'm new to SSL/TSL and was wondering if you could walk me through the following scenario. Scenario Let's say I am one of a thousand websites that has a certificate signed by some certificate ...