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Vulnerability of Aastra IP Phone: password disclosure

Synthesis of the vulnerability 

An attacker can connect to the web service of the Aastra IP Phone, in order to read the user password.
Vulnerable systems: Aastra Phone.
Severity of this threat: 2/4.
Creation date: 09/06/2011.
Références of this weakness: BID-48264, VIGILANCE-VUL-10724.

Description of the vulnerability 

Each Aastra IP Phone is associated to a user, via his Caller ID and his Authentication Name/Password. These information are transmitted to the SIP server (PBX) during the initialization phase.

The phone has a web service, which displays its SIP configuration:
 - http://ip/globalSIPsettings.html
 - http://ip/SIPsettingsLine1.html
However, these pages contain the Caller ID and Authentication Name/Password fields.

An attacker can therefore connect to the web service of the Aastra IP Phone, in order to read the user password.
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This computer threat impacts software or systems such as Aastra Phone.

Our Vigil@nce team determined that the severity of this computer vulnerability alert is medium.

The trust level is of type unique source, with an origin of intranet client.

A proof of concept or an attack tool is available, so your teams have to process this alert. An attacker with a technician ability can exploit this cybersecurity weakness.

Solutions for this threat 

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