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Questions tagged [security]

The protection of computer systems and information from threats such as theft or data destruction.

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9 views

Switching google authenticator app from one phone to another [on hold]

I have a google authenticator on my Iphone 7. I checked how to change the phone, but my iPhone is not listed in my google account somehow. So I can't use the switch phone option. Also I have heard ...
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0answers
13 views

How can I get Thunderbird to trust a _non_ self-signed certificate for which I don't have the issuing CA?

A contact is trying to establish encrypted and signed communication with me using S/MIME. She has a certificate from her organization, which was issued from a non-public CA. It is not a self-signed ...
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1answer
50 views

Can I safely delete the /System/Library/Keychains/SystemRootCertificates.keychain?

I'd like to delete: /System/Library/Keychains/SystemRootCertificates.keychain Is that safe?
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2answers
4k views

Will I be more secure with my own router behind my ISP's router?

My ISP has been accessing my router, (to fix or update something). The ISP’s router is GigaHub 823G-2 (FTTH conection) and my router is a TP-Link TPTD-W8968. They accidentally changed my SSID and ...
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0answers
29 views

Safe gaming, banking and development on the same machine

I'm looking for a way to keep a gaming pc and a work pc. Currently i have a quite powerful machine: i7, 32gb ram, 2x420gb ssd internal (and some other external ssd) Basically the gaming pc will be ...
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0answers
17 views

Error x509: certificate has expired or is not yet valid when login from Drone CI

I tried to setup Gitea with Drone as the following guides here and here. The key is self signed by this command. sudo openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout /etc/apache2/ssl/...
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0answers
12 views

How can I cache a passphrase for use in a script that uses gpg2 --symmetric with STDIN?

I am working on a computer program that stores and retrieves secrets and needs to run without user interaction on the server. I have successfully set everything up in my system to use gpg-agent to ...
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1answer
21 views

Can access default gw, but not rest of subnet

I'm using a somewhat weird setup which (so I would think) allows me to connect to the subnet while spoofing my IP and MAC (in test environment, doing cyber security college ^^). However, the router ...
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0answers
8 views

Application behavior different when exe launched from a UNC path

I have a custom application that needs to connect to a remote database (MS SQL). I have a copy of the .EXE and all related .DLLs in a folder on my c: drive. When I run it from there, it connects. ...
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0answers
17 views

Do Windows Security Updates (KBs) also include patches for vulnerabilities fixed by earlier Security Updates?

I was examined a Windows 7 (x86) machine's installed Security Updates and found that it had Security Updates installed in 2017 (KB3124280) and 2018 (KB4012212). It then came as a surprise that the ...
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0answers
31 views

Need help setting up virtual isolated network with 2 VMs

Good afternoon. I've been searching everywhere for about an hour and I can't seem to figure this out. I'm currently in school learning about malware analysis, so I'm wanting to set up a secure way ...
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0answers
30 views

Should I be concerned? My terminal says that someone's iPhone is connected to my Mac

Recently I've been using a lot of public WiFi and fidgeting with my network settings to use network proxy tools like Burp. Today I opened my terminal and saw this a foreign device as the user: ...
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1answer
49 views

fill /dev/random via bitcoin exchange value [closed]

I have written the following random numbers generator. I would like to know how safe this is and if it is suitable for use in computer engineering. For me, the result looks very random, but would like ...
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0answers
20 views

Transfer a file securely from an industrial HMI

this is a general question that is an extension of the question : Allow only a specific USB device that has not been answered yet. I have a computer that is part of an industrial machine. It has only ...
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0answers
31 views

UWP Apps: Who is the user?

I am trying to understand the information I am seeing about the security token that Windows associates with UWP apps. (I am using Process Hacker to view this information). Take Edge as an example. ...
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0answers
12 views

Is a cpanel username a secret that should not be exposed in a repo?

I've created a super simple deployment solution to pull a static site from a public repo that only I have access to. Per the documentation sent to me by my host Namecheap, cpanel runs a very simple ...
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2answers
50 views

Removing child block

Something is interfering with my computer which shuts off the internet between certain times. It occurs at the same time each day, and no other computers are affected, so I suspect someone has ...
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0answers
15 views

security passwords min-length <x>

Dear superuser members, I have been trying to set a minimum length for passwords stored in routers, switches and ASA simulated in Cisco Packet Tracer 7.2. I have read in many threads that the command ...
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0answers
14 views

Converting exported private key from Microsoft SQL Server to PEM and back to PVK

I have need to backup the cert and private key for SQL TDE and store that on a KeySecure key management system. I can do the backup and get the files, and have no issue with converting the ...
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0answers
28 views

How can I use subjectAltName (SAN) in rsyslog for TLS-TCP authentication?

I am trying to setup Rsyslog for my application with TLS-TCP authentication and gnutls streamDriver. It works properly when the streamDriverPermittedPeers on my client's rsyslog.conf, matches the CN ...
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0answers
19 views

Whitelisting network access for a specific program in Windows

I'm normally a Linux user, but in a while I'll need to use a Windows 7 system for a bit (not something I look forward to). I am using Tor Browser for anonymity. On Linux, I can use Netfilter to ...
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0answers
22 views

How to prevent an IP range having access outside the local network (i.e. block internet access) on TP-Link Archer

I have the TP-Link Archer VR900. I have set up interface groups so my wired network has a separate IP range to everything else. I want to be able to block internet access from clients in this group ...
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0answers
30 views

NameError: name 'VulnCheck' is not defined

When I try to run the following python script below in order to verify if our environment is vulnerable to CVE-2019-9670, I get the following error message: Traceback (most recent call last): File "...
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0answers
21 views

How To Prevent Apps on macOS from Moving Themselves to the Applications Folder?

Some apps, like "Skype Meetings App" and "Join.me" surrepticiously copy themselves to your applications folder without asking or even so much as a notification. How can this be prevented? Isn't ...
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0answers
23 views

How can i change the sshd_config file to work with a QNAP TS-251+?

So I own a QNAP TS-251+, and QNAP is notorious for rewriting the config files for all their services to the default every time the device restarts. I wanted to change the sshd_config file so that I ...
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0answers
16 views

How to prevent windows user from modifying Chrome browser extensions

Peace to all, I am setting up security for chrome browser on user PCs. I enabled a group policy in Chrome to disable uninstalling extensions by users and setup windows permission to deny write to ...
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0answers
67 views

Kubuntu asking for root access to update proxy

I have Kubuntu 18.10 installed on my PC with the latest KDE/Plasma backports. A dialog popped up last night right after login, requesting administrator privileges to set the system proxy for software ...
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0answers
22 views

Domain without DNS on allows user all access to secure files

Setup: 2 Domains running on same network Domain A works great Domain B with no DNS can be accessed by users with trusted accounts (same name) from Directory A User from Domain B with no trusted ...
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1answer
32 views

iptables ignored? Ubuntu SSH Break in Attempts besides Firewall Rules

I noticed that a btmp file appeared in my home directory. It seems that there were automated break-in attempts on my server. However, my server has firewall rules (iptables) in place that should ...
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1answer
60 views

Allow only a specific USB device

I was wondering if there was a way to secure the transfer of data from a computer to another by USB (one that should not be accessed by anything else than this USB drive). So a way to allow a ...
0
votes
1answer
36 views

How to upload data in ElasticSearch(TLS secured via search Guard) using Excelastic

I have ElasticSearch v6.2.4 installed. It worked perfectly fine but recently because of security reasons I installed Search Guard plugin which provide TLS and authentication features to ElasticSearch ...
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0answers
14 views

WSO2 IoT Server Mutual Authentication between device and server

Is it possible to enable Mutual SSL Authentication between server and device. As per WSO2 docs, this feature is available but the not the default way. Currently the server is using a one-way ...
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0answers
87 views

Security folder missing from the registry HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\Security

I need to add a DWORD value in HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\Security but the Security folder is missing in the registry. I have Office365. Could someone please help me?
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1answer
7 views

ESLint plugin won't flag unsafe methods

I've installed ESLint along with a number of security plugins to attempt some javascript analysis, however when i feed it a small amount of vulnerable javascript, i get no output. I installed ESLint ...
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0answers
28 views

Is a reverse proxy good security for a CRM? (Dolibarr)

When running Dolibarr from a docker instance, how, generally, is security handled? Or, what's a good overall approach? I would think there needs to be an additional layer of login simply to protect ...
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0answers
50 views

How to re-obtain ssh access to remote server

I was working on my website using Linux Terminal on VirtualBox and was able to secure access to the remote server without password authentication. All I needed to type was "ssh {sudo user}@{IP}". ...
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1answer
105 views

Checksum Fail – Fedora 29 or spin KDE Plasma

I tried checksum Fedora Workstation 29 and Fedora KDE Plasma but it's always fail. Am I doing something wrong, is the tutorial incomplete or the file in the server is corrupted? Details: I use ...
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1answer
18 views

Java application requiring LD_PRELOAD setting due to signal chaining says LD_PRELOAD is null

I am troubleshooting the failure of a larger java program on a server. However, I have been able to reproduce the problem with a super basic java program that just outputs the environment variable ...
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2answers
92 views

Facebook Sandbox Browser

How can I make firefox operate as a site-specific browser? The goal is security through compartmentalization. Specifically, to thwart facebook's attempts to track & store all of my internet ...
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1answer
97 views

Mozilla Firefox Quantum v.66 - blocking all pages - Is there no solution to use the new version?

OS: Windows 10 Pro, 64 bit Browser: Firefox 66.0.1 After last update to firefox v.66 i got only problems. It is blocking almost all pages. I read about the security issue here: Expect an increase in ...
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0answers
34 views

SSL on Azure Virtual machine

We are have installed the Secure Sockets Layer on Virtual machine but the URL not showing secure. Following are the case. Domain and Secure Sockets Layer is from domain provider. Domain pointed ...
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1answer
9 views

Symfony installation in shared hosting

With SSH i install a symfony project in public_html/myname directory. I assign the domain name to point at myname/web directory. is there fault with that way ? maybe a security issue or something ...
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votes
1answer
37 views

nginx secure TLS configuration result in SSL_ERROR_NO_CYPHER_OVERLAP

I followed a guide from 01/2018 to harden my nginx 1.10.3 TLS configuration. Now I'm getting SSL_ERROR_NO_CYPHER_OVERLAP in Firefox 66.0.1 and https://www.ssllabs.com/ssltest says Assessment failed: ...
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1answer
34 views

Integrity Measurement - TPM-bypass

I am digging into Integrity Measurement Architecture and try to enable it on an embedded device. I have enabled the IMA related configuration flags and compiled the kernel. I can now see xattr ...
1
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1answer
45 views

Browser replacing expired intermediate certificate with new root certificate

I'm connecting to an specific web server via firewall but when I do that the firewall alerts that the root certificate is expired, when I bypass the firewall all browser see no problem with the ...
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1answer
39 views

Security - Password Managers confusion

I'm shopping around for a good password manager (yes, I'm picky) and today I ran into an interesting issue: I have my passwords stored in Google Password manager. For couple of sites I use LastPass ...
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2answers
192 views

How to remotely sign out from Backup and Sync?

Suppose I have a laptop with Google Chrome and Backup and Sync installed and my Google account logged in for both of these applications. Then, if my laptop gets stolen, I want to remotely sign out my ...
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1answer
92 views

Find my stolen Mac mini by MAC address

My Mac mini was stolen from my office and I think it was stolen by one of my colleagues. All of them are software engineers and I think the thief will install a fresh version of macOS on the stolen ...
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0answers
31 views

Is there a way to keep my personal Windows OS installation entirely separate from my work OS installation that is joined to the domain?

I've had a hard time finding a concrete answer to this, even when asking the IT professional at my work. There is an accepted answer here, but I can't tell if that will actually work. I recently ...
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0answers
29 views

BLACK DUCK - Open Source Scan result misleading

My company started using Black Duck version 2018.12.4 and i would like to understand if i made a mistake or if i found a bug. I did the follwing: Start Black Duck Scanner Desktop with Scanner CLI ...