WengoPhone SIP phone INVITE denial of service

wengophone-sip-invite-dos (35967)

Medium Risk

Description:

The WengoPhone SIP phone is vulnerable to a denial of service, caused by the improper handling of packets by the SIP client. By sending a specially-crafted INVITE message, a remote attacker could exploit this vulnerability to crash the phone.

*CVSS:

Base Score:	3.5
Access Vector:	Remote
Access Complexity:	Low
Authentication:	Not Required
Confidentiality Impact:	None
Integrity Impact:	None
Availability Impact:	Partial
Temporal Score:	3.2
Exploitability:	Functional
Remediation Level:	Unavailable
Report Confidence:	Uncorroborated

Consequences:

Denial of Service

Remedy:

No remedy available as of May 1, 2013.

References:

• BugTraq Mailing List, Sat Aug 11 2007 - 23:41:13 CDT: WengoPhone SIP phone Remote Denial of Service vulnerability.
• WengoPhone Web site: WengoPHONE.
• BID-25300: WengoPhone SIP Soft Phone Malformed Packet Denial of Service Vulnerability
• CVE-2007-4366: WengoPhone 2.1 allows remote attackers to cause a denial of service (device crash) via a SIP INVITE message without a Content-Type header.
• OSVDB ID: 38540: WengoPhone SIP INVITE Message Header Content-Type Header Remote DoS

Platforms Affected:

• Wengo WengoPhone 2.x

Reported:

Aug 11, 2007

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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