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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

 

US urges calm as Kirkuk crisis escalates (17 Oct 2017)

 

Catalonia: Spain detains two separatists (17 Oct 2017)

 

Trump denigrates Obama over false fallen soldier claim (16 Oct 2017)

 

Portugal fires: Three days of national mourning for wildfire victims (17 Oct 2017)

 

Malta blogger Daphne Caruana Galizia dies in car bomb attack (16 Oct 2017)

 

China congress: Why Beijing has banned hot air balloons (16 Oct 2017)

 

Philippine conflict: Duterte says Marawi is militant-free (17 Oct 2017)

 

Trump drug czar nominee accused of hindering opioid crackdown (16 Oct 2017)

 

Afghanistan Taliban 'suicide attack' on police centre (17 Oct 2017)

 

St Helena's new airport boosts tourism hopes (17 Oct 2017)

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)

 

California man cited for flying drone over airport, impeding firefighters (16 Oct 2017)

 

Court to rule on forcing tech firms to provide data held abroad (16 Oct 2017)

 

Fed’s Yellen says the economy remains in good health (16 Oct 2017)

 

After the smoke clears: Wine Country economy expected to rebound (15 Oct 2017)

 

Updated: Where fire victims can apply for tax relief and FEMA grants and loans (14 Oct 2017)

 

Twitter CEO Jack Dorsey promises tougher stance on abusive tweets (14 Oct 2017)

more »

 


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