Full Disclosure mailing list archives
Re: Using of the sites for attacks on other sites
From: Sébastien Duquette <ekse.0x () gmail com>
Date: Tue, 29 Jun 2010 21:12:53 -0400
Actually some of his articles were listed (76 to 80) and he said it was mentioned in the post, not the top 10. On Tue, Jun 29, 2010 at 4:41 PM, Chris Evans <scarybeasts () gmail com> wrote:
2010/6/28 MustLive <mustlive () websecurity com ua>:Hello participants of Full-Disclosure! For last two months I didn't post my articles to this list due to some not serious moaning in April on some of my articles (you always can find my articles at my site and in WASC Mailing List). But at the end of June I decided to remind you about my last articles. Recently I wrote new article Using of the sites for attacks on other sites (http://websecurity.com.ua/4322/). This is brief English version of it. Last year in article DoS attacks via Abuse of Functionality vulnerabilities (it was mentioned at http://jeremiahgrossman.blogspot.com/2010/01/top-ten-web-hacking-techniques-of-2009.html)I do not see your name anywhere in the top ten? Cheers ChrisI told about possibility of conducting of DoS attacks via Abuse of Functionality vulnerabilities at other sites. Particularly I showed examples of such vulnerabilities at web sites regex.info and www.slideshare.net. These attacks can be as unidirectional DoS, as bidirectional DoS, depending on capacities of both servers. And now I'll tell you about possibility of conducting of CSRF attacks on other sites via Abuse of Functionality vulnerabilities. Researching of such attacks I begun already at 2007 when found such vulnerability at regex.info. Using of Abuse of Functionality for attacks on other sites. Sites, which allow to make requests to other web sites (to arbitrary web pages), have Abuse of Functionality vulnerability and can be used for conducting of CSRF attacks on other sites. Including DoS attacks via Abuse of Functionality, as it was mentioned above. CSRF attacks can be made only to those pages, which don't require authorization. For these attacks it's possible to use as Abuse of Functionality vulnerabilities (similar to mentioned in this article), as Remote File Include vulnerabilities (like in PHP applications) - it's Abuse of Functionality via RFI. This attack method can be of use when it's needed to conduct invisible CSRF attack on other site (to not show yourself), for conducting of DoS and DDoS attacks and for conducting of other attacks, particularly for making different actions which need to be made from different IP. For example, at online voting, for turning of hits of counters and hits of advertising at the site, and also for turning of clicks (click fraud). Abuse of Functionality: Attack is going at request of one site (http://site) to another (http://another_site) at using of appropriate function of the site (http://site/script). http://site/script?url=http://another_site Advantages of this attack method. In this part of the article I wrote a list of advantages of this attack method. And I mentioned another two important paragraphs: Note, that this DoS attack is possible to use for attacks on redirectors, which I wrote about in my articles Redirector’s hell and Hellfire for redirectors. Also at conducting of DoS attacks it's possible to use several such servers at once and so to conduct DDoS attack. In such case these servers will be appearing as zombie-computers. I.e. botnet will be made from not home computers, but from web servers (which can have larger capacities and faster connections). So these vulnerabilities can lead to appearing of new class of botnets (with zombie-servers). Examples of vulnerable web sites and web services. In this part of the article I showed examples of different web sites and web services which could be used for conducting of attacks on other sites. Including regex.info, www.slideshare.net, anonymouse.org, www.google.com, translate.google.com, babelfish.altavista.com, babelfish.yahoo.com, keepvid.com, web application Firebook, W3C validators and iGoogle. Best wishes & regards, MustLive Administrator of Websecurity web site http://websecurity.com.ua _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/_______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
_______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
Current thread:
- Using of the sites for attacks on other sites MustLive (Jun 28)
- Re: Using of the sites for attacks on other sites musnt live (Jun 28)
- Re: Using of the sites for attacks on other sites MustLive (Jun 30)
- Re: Using of the sites for attacks on other sites Chris Evans (Jun 29)
- Re: Using of the sites for attacks on other sites Sébastien Duquette (Jun 29)
- Re: Using of the sites for attacks on other sites mrx (Jun 30)
- Re: Using of the sites for attacks on other sites mrx (Jun 30)
- Re: Using of the sites for attacks on other sites musnt live (Jun 28)