Re: Web session tracking security prob. Vulnerable: IIS and ColdFusion (maybe others)

[Lincoln Yeoh <lyeoh () pop jaring my>]

At 02:25 PM 29-08-2001 -0400, Jeff Jancula wrote:
> BACKGROUND:
>
> When a Internet browser user visits IIS or ColdFusion hosted web sites,
the web server issues browser commands similar to:
> (for IIS) Set-Cookie: ASPSESSIONID=BBBBBBBBABCDEFGHIJKLMNOP
> (for CF)  Set-Cookie: CFID=123
> (for CF)  Set-Cookie: CFTOKEN=4567890
>
> The browser stores and returns the "ASPSESSIONID" or "CFID/CFTOKEN" values
with each subsequent request to the web server. IIS and ColdFusion use
these values to identify and track each user.
>

What does CFID=123 mean to cold fusion? Is that the user/session ID?

Does that mean an attacker can just send CFID=123 and CFTOKEN=ANYTHING and
Cold Fusion will think it's the same user/session?

If it does then it's a very big problem. If it doesn't, then it may not be
a problem unless your application assumes that just having a session means
it's a valid user.

Cheerio,
Link.