Beta

×

Welcome to the Slashdot Beta site -- learn more here. Use the link in the footer or click here to return to the Classic version of Slashdot.

Thank you!

Before you choose to head back to the Classic look of the site, we'd appreciate it if you share your thoughts on the Beta; your feedback is what drives our ongoing development.

Beta is different and we value you taking the time to try it out. Please take a look at the changes we've made in Beta and  learn more about it. Thanks for reading, and for making the site better!

cingular voicemail hack

Anonymous Coward writes | more than 7 years ago

Security

gomez writes "i have no idea where to let people know about this. but i'm loyal to slashhdot so why not here?

i'm an admin for a call center and i was messing around with caller id the other day. i remember dialing voicemail by pressing 1 on my cingular cell phone and getting straight in w/ out a verification of password. well i thought, what if i can change my outbound ISDN caller ID on my landline phone to a friends phone, figuring that if the mechanism is only checking caller ID why not fake it? it totally worked. i was in my friends voicemail checking his messages.

i thought, well who has the power to change caller id? only admins right? well i checked the client app for use with our PBX, and lo and behold they of course (with certain user privileges) have the power to change outbound caller ID on the fly. I think most phone systems these days in a business environment allow a user to do so, but again only if they have the privileges.

cingular has already been notified about this, i just thought i'd light the fire under their arses.

check your phone software to see if you can change your outbound caller id.. i bet you see the same result.

    — gomez"

cancel ×

comment

Slashdot Login

Need an Account?

Forgot your password?
or Connect with...

Don't worry, we never post anything without your permission.

Submission Text Formatting Tips

We support a small subset of HTML, namely these tags:

  • b
  • i
  • p
  • br
  • a
  • ol
  • ul
  • li
  • dl
  • dt
  • dd
  • em
  • strong
  • tt
  • blockquote
  • div
  • quote
  • ecode

"ecode" can be used for code snippets, for example:

<ecode>    while(1) { do_something(); } </ecode>