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San Francisco, USA

 

Checking for Cross-Site Scripting Vulnerability

Netcraft.com brings my attention to cross-site scripting security problem. I have examined this website for vulnerabilities. This problem is usually caused by systems not checking input received from user or third party before using it. One place this website receives input is the RSS new feeds. I have crafted a test RSS with embedded javascript. Some RSS feeder (including this website) display the content as is. They should have (arguably) strip off the embedded script before displaying it. I promptly plugged this by escaping the meta characters before outputting them on the web pages.

An important element for cross-site scripting is that a third party can use a reputable website as a conduit to inject questionable code in their context. In this case the news feeder's communication is only between this website and the news source. I am not aware of any loop hole for third party to get involved. But in the world of open communication it is better to be safe to test for all input before use.

2004.07.20 [, ] - comments

 

pyBlosxom Upgrade

I have finally ditched my home grown blog formatter for pyBlosxom, a very simple file based weblog server. It only take me several hours to setup and integrated with my web pages. Customization is fairly easy. I have designed the style to look, well, like the same old home page (pyBlosxom itself does not come with any decent template anyway). So far the only thing new is the calendar on the left. But I plan to add other features in the coming days.

I have downloaded Movable Type for months and never get to set it up. The database and third party library requirement really puts me off. Yet I am able to setup pyBlosxom within hours. I am really please with its light weight design and the text file based repository.

The main motivation for upgrade is the need to add permalink to the entries. I have some successful experimented with pyBlosxom but I still need some more work before publishing them. After all, permalinks means permanent. So I want to get it right.

2004.07.01 [] - comments

 

past articles »

 

BBC News

 

France church attack: Priest killed in hostage-taking near Rouen (26 Jul 2016)

 

US election: Michelle Obama denounces Trump 'hate' (26 Jul 2016)

 

Dutch men revealed as world's tallest (25 Jul 2016)

 

Japan knife attack: 19 killed at care centre in Sagamihara (26 Jul 2016)

 

Solar Impulse completes historic round-the-world trip (26 Jul 2016)

 

F1 chief Bernie Ecclestone's mother-in-law 'kidnapped in Sao Paulo' (26 Jul 2016)

 

Key Islamic State leader Saad Emarati 'killed in Afghanistan' (26 Jul 2016)

 

Rio Olympics 2016: Five Russian canoeists banned from Games (26 Jul 2016)

 

'Laughing gas' kills newborn in Sydney hospital (26 Jul 2016)

 

Somalia attack: Twin car bombs explode by Mogadishu airport (26 Jul 2016)

more »

 

SF Gate

 

Bay Area News (7 Jan 2012)

 

City Insider (11 Feb 2012)

 

Crime Scene (13 Feb 2012)

 

C.W Newius Column (10 Jan 2012)

 

C.W. Nevius Blog (11 Feb 2012)

 

Education News (10 Jan 2012)

 

KALW (11 Feb 2012)

 

Matier and Ross Blog (11 Feb 2012)

 

Photographic proof that driving in Calif. is more dangerous than ever (26 Jul 2016)

 

Business News Roundup, July 26 (25 Jul 2016)

 

Yahoo's evolution from rising to fading Internet star (25 Jul 2016)

 

With Yahoo buy, Verizon doubles down on Internet advertising (25 Jul 2016)

 

1st US system to keep drones away from wildfires kicks off (25 Jul 2016)

 

Smartphones move up in retail; NPR goofs; Redbox owner sold (25 Jul 2016)

more »

 


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