Questions tagged [logging]

Specific to logging of alerts, activities and actions. This also covers user's history managed by software such as browsers.

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Validating security log configuration (rsyslog and syslog-ng) for PCI DSS 10.5

I work for a Level 1 merchant with annual onsite QSA audits, so this is a huge deal. PCI DSS 10.5 requires the entity under test to "Secure audit trails so they cannot be altered". In our Unix and ...
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2 votes
1 answer
257 views

Strange Log in Apache

I found in my Apache log something strange in requested URL / method request (I suspect an attempt to hack): \x1b\x95J\xe2h\xa7\xcfj\xe1`\x85R\x1f\x98\x9e\xcf\xdedFM(\xa8\xbcc\xc0P\xd9::e\xed\xaa~...
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  • 301
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1 answer
893 views

What browsing history exactly would police have under proposed UK law change? Plain english

It's very unclear what '12 months' browsing history being kept by network provider' actually means to an uninformed person. Thunderbird? VPN? Startpage searches? Bit-torrent downloads? Epic browser (...
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  • 11
0 votes
1 answer
324 views

PCI Logging Data Elements for Network Devices, Databases and Wireless Networking

What is the best way to figure out what exactly needs to be logged for Network Devices, Databases and Wireless Networking Devices? I'm not an expert in this area but I need to figure out what data ...
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1 vote
1 answer
167 views

Is it possible to log all file reads performed by an application in Windows 7?

I have a piece of software I'm supposed to be running on my computer. The only thing I'm slightly worried about is the files it reads, as it's closed-source and slightly fishy. I know it's not ...
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4 votes
1 answer
361 views

How to see what happens when a usb is inserted

After reading through this question about the dangers of untrusted usb drives, I was wondering if there was a way to actually see what happens when a usb drive is installed. Is it possible to say run ...
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3 votes
5 answers
515 views

Proving an action was done at an exact time - a posteriori

I was thinking about the way git allows to edit the timestamp on commits, and how you can rewrite (public) history that way. I then drifted from that to "can we prove someone did an action at time X ...
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  • 143
33 votes
4 answers
13k views

Should I be worried if I accidentally entered my password in a username field?

Occasionally I will fail to hit Tab properly when entering a username/password combination. This results in me submitting username "myUsername$ecretPa$$word" along with a blank password. I always ...
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4 votes
2 answers
286 views

Is it safe to expose a logging socket endpoint in a chrooted environment?

I'm trying to set up a file transfer server, which needs to be secured and logged. FTP was suggested, but that feels outdated so I automatically translated that to SFTP (OpenSSH) in my head. Using ...
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  • 143
2 votes
3 answers
2k views

What does my iPhone see/track when connected to my macbook PC?

Recently hooked up my work iPhone to my personal MacBook to charge the phone. I viewed some websites that would be questionable on the MacBook using the hotel WiFi. What does the iPhone track when ...
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  • 21
4 votes
2 answers
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Log of all processes running on a computer

I'm new to the security domain and I want to ask - Does every program leave an 'imprint' in a log of some kind, in a laptop or a PC - of whatever process it ran. If yes, can they be analysed?
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-1 votes
2 answers
187 views

Data to be Logged in a Web Application [closed]

What data should be logged in a web application? From all the perspective such as security, user access, data modification, path traveled by a user in application and anything that matters.
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0 votes
2 answers
284 views

What is the PCI requirement for tracking software installation on workstations?

We have a task open right now to implement UAC and matching event log tracking for our devs installing software on their machines. I've been asked whether storing/parsing these logs centrally is a ...
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4 votes
1 answer
945 views

How secure/private is the browsing history on browsers?

I've been using Aviator secure browser for a while which insists that you run private mode by default (cookies and history wiped after every session), which makes me wonder how secure the history is ...
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  • 51
1 vote
2 answers
262 views

Books about theoretical basis in log management [closed]

I'm looking for a books about theoretical basis in log management, not about tools. I need it to write my master's thesis. I need books about: log sources, log collection storage techniques, storing ...
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  • 137
7 votes
2 answers
2k views

Personally identifiable information in query parameter for Tomcat REST service

I have a REST API running in a Tomcat container that has an endpoint that takes a customer email address as a query parameter. It's something like this: /customers?email=foo@bar.com Customer email ...
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1 vote
1 answer
212 views

Security server log review [closed]

We have a Kiwi Syslog server for Centralized logging purposes. Currently, our focus is only on monitoring, reviewing and reporting User Account/Password Violations. We already used the necessary ...
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1 vote
2 answers
196 views

Methods to keep an autonomous log with high integrity

I'm writing a .NET desktop application that is used to send orders to a server via a REST API. To avoid leaking of our authentication token I have made it so that, when used for the first time, the ...
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6 votes
2 answers
20k views

What can my ISP see in their log files if I use Google DNS?

For example, if I use my ISP DNS and open this page they will see: https://security.stackexchange.com/questions/ask It would show up in their logs for sure. But if I use Google DNS, then what ...
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  • 69
1 vote
1 answer
977 views

Home broadband security logs

I checked my home (broadband)routers security logs just today and found these logs LAN Attack: IN=ptm0.1 OUT=n/a MAC="mac address here"a SRC="source ip address here" DST="my public ip address here" ...
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  • 11
5 votes
1 answer
348 views

Chaining VPNs to increase privacy?

I was wondering if it's possible to chain many VPNs, and if it is, if it increases privacy at all? My thinking was that each country has data retention laws. If all VPN keep logs (even if most lie ...
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  • 51
5 votes
2 answers
2k views

PowerShell's Module logging

I'm looking for some more information concerning the white paper which goes into some detail over PowerShell's Module logging. Specifically, once this is enabled, are the default cmdlets logged? For ...
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1 vote
1 answer
91 views

Can one trace downloads in storage unit? [closed]

Does My Passport WD keep a history of downloads, transfers etc? In other words can user A detect user B's activity? Or can it just see the content of the storage unit?
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4 votes
1 answer
343 views

Analyzing log files for forensics homework?

Suppose two users have done a murder at 6pm at Dunkin Donuts, I have got the hard disks on site, disk1 and disk2. How do I identify the time and order of each user's activities on the hard disks? ...
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2 votes
0 answers
1k views

Logging all traffic crossing SSH proxy

Is there a way to log SSH sessions proxied through a machine (User-> SSH Proxy -> Server (with SSH)) without modifying the SSH daemon on the proxy? I need to log all the commands as well as responses ...
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4 votes
3 answers
1k views

"Authorized" Man in the middle

I am implementing a TLS connection with a basic server and client. It’s a one way connection: the server has a certificate chained to the CA, and the client has a collection of trusted root ...
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  • 143
3 votes
3 answers
359 views

How to keep logs safe from attackers?

I have a Linux server equipped with some security apparatus to prevent unauthorized access. Hopefully, this will prevent intrusions, but the possibility always exists. Naturally I keep logs so that ...
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5 votes
2 answers
249 views

Could an attacker prevent IIS from logging requests

I've had an attacker try to gain access to one of my websites through a form using what looks like a blind SQL inject. It is a huge form, and every possible permutation of values has been tried - in ...
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4 votes
2 answers
3k views

Is my data secure in locked screen if I use bitlocker

My SSD is currently encrypted by bitlocker right now. So let say if I leave my laptop on locked state (Win+L). Is it possible for someone to get access to my data? Few thing I noted are: If someone ...
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0 votes
0 answers
68 views

Security Flaw in all "logging by" system - phishing opportunity

We all face such popups. How can you assure that it's NOT phishing, if It's not in the browser. UIWebView (View that displays this logging view) is controlled by application we really don't even ...
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0 votes
1 answer
1k views

Why my files that Encrypted with EFS in Windows 8.1 shown in Linux ubuntu?

i Encrypted my files with EFS in windows 8.1 so i logged in ubuntu and without any warning , its shown my files actually not Exactly the file but shown the path of file and the name and i can ...
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11 votes
4 answers
1k views

What is Net-Worm.PHP.Mongiko trying to do?

I found several lines of this request in my web server access log: Source IP Dest IP Request Stat User agent 217.172.190.19 1.2....
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  • 111
1 vote
1 answer
1k views

strange web server log activity

I've noticed some suspicious activity in my webser logs: 188.165.66.110 - - [20/Feb/2015:03:58:28 +0000] "GET /?x=()?x=()?x=()?x=() {:; }; echo Content-type:text/plain;echo;echo;echo M`expr 1330 + 7`...
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  • 13
7 votes
2 answers
721 views

Invalid passwords leaked to logfiles

My company recently discovered that we're logging invalid login attempts, alongside with usernames and passwords. Those logfiles are stored on several machines and accessible to all team members. This ...
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  • 253
0 votes
3 answers
144 views

How to learn IP range from inside company

I'd like to block all users from inside Company X from visiting my website. However I don't work at Company X. Is there an efficient way to learn what the IP is when people inside Company X access the ...
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  • 433
4 votes
2 answers
5k views

How can I find out if someone has been on my home wifi network?

I am aware of DCHP tables, and apps that can scan your network to see who is "currently" on your wifi network, but I am more interested in how to tell if someone has been on my wifi network at some ...
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2 votes
1 answer
192 views

For PCI compliance, does every request need to be logged regardless of how it affects system performance?

Our cloud based service is currently undergoing changes with a view towards PCI compliance. It is a high throughput service, and there are concerns that enabling the right amount of logging on our ...
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27 votes
1 answer
3k views

What questions should be asked when joining a new security team? [closed]

I've accepted a position at a different company working on their security team and have been mentally putting together a list of questions to ask so I can rapidly get up to speed in the environment ...
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  • 434
4 votes
2 answers
2k views

PCI DSS - mask PAN and log individual access to PAN

How do you re-conciliate two PCI DSS requirements in applications: 3.3 Mask PAN when displayed (the first six and last four digits are the maximum number of digits to be displayed), such that only ...
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  • 41
0 votes
1 answer
144 views

How to log all resources my site needs from other sites? [closed]

is there any simple way to log/list all resources my website (wordpress & theme) needs from the outside? Like jquery, fonts and all this stuff. I want to host it on my own server. (doesn't matter ...
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  • 21
3 votes
2 answers
758 views

Regular Expressions for common exploits

I patched for shellshock and was barraged a few days later. However, I would not have known any attempts were made at all if not for a regular expression I found on the internet. This has inspired me ...
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2 votes
2 answers
740 views

Writing errors to Apache's log file from PHP - are there any pitfalls?

I'm updating an application to write slightly more verbose errors to the system log file (in this case, /var/log/apache2/mysite_error_log). I hope that I'm not asking the proverbial stupid question -...
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  • 211
0 votes
2 answers
21k views

Will an ISP give out network/traffic info upon request?

Nothing big, just a fear of embarrassment. I use my mom's (she pays for it) internet service to connect online and stuff. The thing is, I am nervous that she may possibly ask the ISP for some traffic ...
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  • 21
2 votes
2 answers
4k views

Log information for SIEM auditing in Linux

How can I know what all types of events generated by Linux. I can get this from the logs, but reading logs and noting ID's is very time consuming. All events might not be triggered. I need this ...
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  • 143
2 votes
3 answers
342 views

Is it dangerous for apache error_log to be writable?

I was reading an article about log files and referring to apache error log it mentioned that the logfiles should not be writeable by other users. How can this be dangerous? Is there a certain type of ...
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  • 125
3 votes
1 answer
226 views

Freezing creates unusual pattern in kern.log

My server freezed a few days ago. After restarting I immediately checked the logs and the only trace I saw were some dots in the kern.log. To my surprise, a day or two later these dots disappeared ...
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9 votes
4 answers
7k views

What do shellshock attacks look like in system logs? [closed]

I have some Linux servers, which from what I can tell are not vulnerable to the shellshock attack vector, but I am curious what the attack looks like in the logs. What does a successful attack look ...
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  • 301
0 votes
1 answer
196 views

Can Sagan block active acts once they've been detected?

I'm trying to determine if Sagan can do anything similar to fail2ban where detected attacks can be temporarily blacklisted, via a system's firewall (iptables). Does Sagan have any "countermeasures" or ...
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  • 245
2 votes
1 answer
571 views

Trying to GET "/iptac-xxxx" not found in nginx log. Is an attack?

I've found some messages like this one, in my nginx error.log. open() "[my-domain]/**iptac-***[a long long string]*/http:/[my-domain]/" failed (2: No such file or directory), client: , server: , ...
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  • 31
-1 votes
1 answer
262 views

Wiretapping requests to VPN providers [closed]

What are valid issuers of wiretapping requests aimed at VPN providers except the court of the provider's country? Is it possible that country in which jurisdiction VPN provider does not act will ...
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