Questions tagged [threat-mitigation]

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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73 views

Does HTTPS protect mobile internet connections against “network injection”?

The Star recently published an article describing an alleged attack against a Moroccan journalist. The article describes the attack as such: Forensic evidence gathered by Amnesty International on ...
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Does TLS 1.3 mitigate the BREACH vulnerability?

Section 5.4 of the TLS 1.3 specification describes record padding. One of the mitigations for BREACH is to add random padding. Therefore, I'm wondering: Does TLS 1.3 require random record padding? ...
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Can VPN hardware provide adequate isolation on a home network? [closed]

If you were to configure a Work PC at home to exclusively connect to your work network via a small VPN box, would this adequately isolate it from your home network and related threats? What ...
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78 views

Threat modeling for visitor access control

I am trying to understand threat modeling but it seems too elasti from restrictive requirements to general requirements. Now i am trying to understand it with some realistic examples. The first ...
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How to secure an open port and public IP address when clients must connect to it [duplicate]

I do not have a lot of experience in networking, however, I have built a live-chat application using socket.io and nodeJS. In order to do this, I had to open a port to allow other networks to connect. ...
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Accidentally Shared my Private Key - How to Remedy?

I accidentally shared my SSH private and public keys with others. I changed keys within 2 minutes of sharing the private key. I've since added a password to access my private key as well as deleted ...
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How to mitigate insecure password policy that I am forced to use?

The site in question is the UK regulator for companies at https://ewf.companieshouse.gov.uk. Online access to a company on this site enables the user to file/change various critical things on behalf ...
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3answers
203 views

How are websites actually mititating BREACH? (HTTPS + compression)

After reading some popular questions and answer on this website about BREACH, the only advice seems to be: don't compress anything that might contain secrets (including CSRF tokens). However, that ...
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1answer
123 views

Malware Threat Hunting in Airport Systems - KPIs/Metrics to Track [closed]

I am trying to figure out how to detect potential threats from malwares in various systems installed in the airport. To be specific, my focus is on the following systems in airports: Baggage ...
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35 views

Sysmon fails to use config file in Windows 7

Sysmon fails to use EventFiltering properties written in config file. I am trying to use,for example, this kind of config to detect network activity from powershell process: <Sysmon schemaversion="...
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179 views

Preventing Linux brute force concurrent su/sudo attempts

Its well known that popular Linux distros use the PAM default to slightly delay incorrect login attempts, thus mitigating brute-force attacks against a user account (for example, running su repeatedly ...
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134 views

Under which conditions can dllhost.exe spawn child process? | MITRE ATT&CK T1191

I was looking for conditions/circumstances under which Dllhost.exe can spawn a child process. I examined a huge quantity of event logs from various Windows system and didn't come across any event in ...
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What are the new MDS attacks, and how can they be mitigated?

Several new hardware side-channels were discovered called MDS attacks, which allow reading arbitrary memory, like Meltdown. Many existing mitigations are useless against them. The relevant CVEs are: ...
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How can I mitigate the possibility of SSL private key being copied without my knowledge?

OCSP stapling and Certificate Transparency logs seem to provide a pretty good defense against man-in-the-middle attacks if I discover that my private key has been stolen. I can revoke my old ...
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1answer
867 views

What is the difference between Anti - APT (Advanced Persistent Threat) and ATP (Advanced Threat Protection)?

Like the question says, is it the naming difference only or are they entirely different?
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Do programs run in Linux in Wine benefit from DEP and ASLR?

Do programs run in Linux in Wine benefit from mitigation techniques DEP and ASLR?
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1answer
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Will removing the harddrive from a computer protect it from persistent malware?

If I took a clean computer/laptop and removed the harddrive, lock the BIOS with a password, then did all my work from a live OS like Knoppix, will this help reduce the risk of persistent malware ...
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1answer
107 views

Classification of countermeasures for family of vulnerabilities

I would like to know if anyone of you has already read about some models that would classify a set of possible countermeasures against a family of vulnerabilities. What I mean by a 'family of ...
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1answer
207 views

Does Windows 10 provide sufficient virus and threat protection? [closed]

I am configuring a new laptop with Windows 10 Home and trying to determine if it is necessary to buy one of the big antivirus packages such as Norton, McAfee, etc. Is the security software that comes ...
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1answer
91 views

How to reuse a rewritable DVD from an unknown source?

I have a used rewritable DVD that I want to wipe and use to store new data. The DVD has been written to before by someone I don't know and can't necessarily trust. Is there a safe way to use the disc? ...
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Why would IPS vendor provider refuse to publish SLAs to fix the published highly ranked CVEs?

One of the biggest IPS providers (top of Gartner graph for its category) is not providing SLAs for all the 7+ ranking CVEs published last year. I don't really understand why would they refuse to ...
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1answer
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TVRA does it cover physical, cyber and information security?

For that matter is TVRA only linked to security? Can it be used to assess, evaluate all or any situation and from there, come up with control measures?
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1answer
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How to calculate the priority and the severity of our daily cyber security intelligence threat feeds?

Some solutions (eg. FireEye ISight) can provide a daily feed where they will mention each reported issue with it's severity and priority. Usually those companies will do some basic research and look ...
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289 views

How should we mitigate threats that are keep coming to our security monitoring system?

We have continuous cybersecurity threat feeds that coming to our SOC on a daily basis from different sources that provide all the new CVEs, new malware variations and more. We just don't know how to ...
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217 views

How should we implement responsible discovery program internally only for our organization employees?

We experienced a very interesting phenomenon in the last 6 months and that is that some employees found and reported to our security teams few very crucial security issues. We were thinking about ...
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168 views

How to mitigate the risks of using new, third party imported electronic accessories?

As someone who is naturally good at recognizing risk and who are striving to maintain a wholistic view on security, I’m wondering how to evaluate and reduce the risks of hardware accessories (I.e. ...
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Mitigating the new attack on WPA2 involving PMKID

A new attack was discovered which allows cracking a WPA2 passphrase without needing to capture the 4-way handshake. While this doesn't weaken the password itself, it does mean that an attacker can ...
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206 views

What are the risks of placing Amazon Resource Names (ARNs) in VCS repositories?

Amazon Resource Names (ARNs) uniquely identify AWS resources. Amazon requires an ARN when you need to specify a resource unambiguously across all of AWS, such as in IAM policies, Amazon Relational ...
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99 views

Operation Prowli Malware Infects Over 40,000 Machines

Seems a new malware infection has been detected called 'Operation Prowli Malware' and around 40,000 machines are infected. Still no CVE data updated on CVE site regarding the relevant vulnerability. ...
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What is the quick fix for CSRF attack?

The application is constructed in Java language and JSF framework. I have reported a CSRF attack and the development team have to fix it soon since the application is in production. I recommended to ...
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1answer
205 views

What are the security risks of running a daemon as root even though SELinux is enforcing?

On an board running Linux I see a daemon and an utility run under root when started. The SELinux is enforcing for this system. Are there any potential threats of running as root, even if the SELinux ...
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2k views

Is Cross Site History Manipulation (XSHM) still relevant?

XSHM is a vulnerability which exploits the fact that the browser history object does not follow the Same Origin Policy and hence by tracking the changes made to this object we may be able to track a ...
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2answers
397 views

Is using cat -v an appropriate way to sanitize untrusted text?

It is well known that a terminal tends to trust things which are printed to it through stdout/stderr, making outputting attacker-controlled data to the terminal a risky action. Is using cat -v an ...
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Is public Wi-Fi a threat nowadays?

In my opinion, arguments we have been using for years to say that public Wi-Fi access points are insecure are no longer valid, and so are the recommended remedies (e.g. use VPN). Nowadays, most sites ...
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How do I secure my home Wi-Fi network in light of KRACK? [duplicate]

Now that KRACK has been discovered to exploit WPA2, is it still possible to secure my home Wi-Fi network? If so, what steps should I take to secure it against KRACK attacks? Will there now be a need ...
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88 views

Why aren't more wifi points compromised? [closed]

Especially in light of the recent KRACK problem. Wifi has been compromised before; and undoubtedly it will again. So I have to wonder, why don't criminal organizations travel around major cities, ...
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Removing suspect MITM certificate while only knowing Date Issued?

A Blue Coat type of certificate was added to my personal PC to access a business network which I could trust at the time, but I don't trust the certificate issuer (Blue Coat) in general and don't ...
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1answer
325 views

Handling toxic data in a microservice architecture

I'm trying to apply the principle that data is toxic asset in a system with many services through which this toxic asset must flow. The system can be abstracted to 3 actors: clients, intermediaries, ...
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221 views

Security risks introduced when moving from a three tier to a two tier architecture

I host several .net web applications using a standard three tier architecture with web servers located in a demilitarised zone. I have been asked to host a two tier .net web application where the web ...
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1answer
102 views

Is there a safe way to upload a malware into a centralized server?

I'm facing an issue which i need to upload files to a centralized server, then relay it to other malware analysis providers (Palo Alto / etc...) As from security perspective - it's forbidden for the ...
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1answer
91 views

Can browser emulation create vulnerabilities?

If a browser is not authorized on a network, can browser emulation within an authorized browser create vulnerabilities? For instance, Chrome is unauthorized but if I run IE, press F12 to get into ...
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1answer
79 views

How can websites with URL traversal functionality protect itself from revealing its IP?

A good number of websites these days are not served directly over the internet, but through an intermediate providers, such as Cloudflare and Incapsula. A basic premise of the security provided by ...
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2answers
2k views

Preventing a Brute Force Attack on API via limiter

I have an API that users can log into. I don't want it to be hacked. What if I limit each user to 60 requests a minute? Won't this significantly slow hackers down in a brute force situation?
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4answers
818 views

Is older software safer to use? [closed]

Is software (and even hardware) that is a few years old safer to use than something that's only been out for a few months? On GRC Security I remember the author cautioning against Windows 7 as it ...
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5answers
6k views

Should web applications that are only accessible from a LAN be held to the same security standards as publicly accessible websites?

Many security measures are intended to protect against hostile users who want to abuse the software or get access to content they don't have permission to access. Things like CSRF protection, SQLi ...
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1answer
90 views

Are there any known concrete cases of Cloudbleed attacks?

CloudFlare's Cloudbleed seems like a big deal, with thousands of websites compromised. CNN on February 24, 2017 mentions that it "doesn't appear anyone has exploited it yet." Was CNN right? And a few ...
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1answer
4k views

What's the Impact of the CloudFlare Reverse Proxy Bug? (“#CloudBleed”)

In Project Zero #1139, it was disclosed that CloudFlare had a bug which disclosed uninitialized memory, leaking private data sent through them via SSL. What's the real impact?
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What threats and mitigations are there for a CA when processing a CSR?

Question What kinds of technical nastiness/attacks should I look for in a Certificate Request (CSR) ? Assume the ASN1 parser is secure on the CA. I'm strictly concerned with the process of ...
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Who is the special OpenID Connect URL “self-issued.me” issued to, and is it a risk?

OpenID Connect defines a special use case for self-issued.me and it's registered overseas to what I assume is a fictional name. What is the risk of someone owning this domain w.r.t. OpenID Connect? ...
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99 views

Moving to a New Network: First Steps

I will be moving a new location in a short time, which means all of my devices will be coming with me. My landlord is the kind of older person who needs help connecting to WiFi. Despite this, she ...