Rightfax Webclient Predictable Session Number Vulnerability

BID:953

Info

Rightfax Webclient Predictable Session Number Vulnerability

Bugtraq ID: 953
Class: Serialization Error
CVE:
Remote: Yes
Local: Yes
Published: Feb 01 2000 12:00AM
Updated: Feb 01 2000 12:00AM
Credit: Posted to bugtraq on Feb 1, 2000 by ET LoWNOISE <[email protected]>.
Vulnerable: AVT Rightfax 5.2
- Microsoft Windows NT 4.0
Not Vulnerable:

Discussion

Rightfax Webclient Predictable Session Number Vulnerability

The RightFax server uses a session ID to track users' connections to web-based fax services. This ID is predictable and legitimate session IDs can be generated arbitrarily. It is included in the URL, and by generating a session ID in use by another user it is possible to hijack their connection. This leads to the ability to send and read faxes as that user.

Exploit / POC

Rightfax Webclient Predictable Session Number Vulnerability

Currently the SecurityFocus staff are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected].

Solution / Fix

Rightfax Webclient Predictable Session Number Vulnerability

Solution:
Currently the SecurityFocus staff are not aware of any vendor supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected].

References

Rightfax Webclient Predictable Session Number Vulnerability

References:

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