Cisco IP Phone 7940/7960 SIP INVITE denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in Cisco IP Phone 7940/7960 and classified as problematic. Impacted is an unknown function of the component SIP INVITE Handler. Executing a manipulation can lead to denial of service. This vulnerability is handled as CVE-2007-1561. Additionally, an exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco IP Phone 7940/7960 (IP Phone Software). It has been declared as problematic. This vulnerability affects an unknown code of the component SIP INVITE Handler. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. CVE summarizes:

The channel driver in Asterisk before 1.2.17 and 1.4.x before 1.4.2 allows remote attackers to cause a denial of service (crash) via a SIP INVITE message with an SDP containing one valid and one invalid IP address.

The bug was discovered 03/19/2007. The weakness was released 03/21/2007 by Radu State Olivier Festor with Humberto J. Abdelnur (Website). The advisory is available at cisco.com. This vulnerability was named CVE-2007-1561 since 03/21/2007. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are unknown but a public exploit is available.

After 3 days, there has been an exploit disclosed. It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 27157 (openSUSE 10 Security Update : asterisk (asterisk-3543)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 165069 (SUSE Security Update for Asterisk (SUSE-SA:2007:034)).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at cisco.com. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published 2 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (33068), Exploit-DB (3566), Tenable (27157), SecurityFocus (BID 23031†) and OSVDB (34479†). Entries connected to this vulnerability are available at VDB-2984, VDB-35774, VDB-36613 and VDB-36430. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.9
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 27157
Nessus Name: openSUSE 10 Security Update : asterisk (asterisk-3543)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 9999992
OpenVAS Name: Asterisk PBX SDP Header Overflow Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Exploit Delay Time: 🔍

Patch: cisco.com
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

03/19/2007 🔍
03/19/2007 +0 days 🔍
03/19/2007 +0 days 🔍
03/20/2007 +1 days 🔍
03/21/2007 +1 days 🔍
03/21/2007 +0 days 🔍
03/21/2007 +0 days 🔍
03/21/2007 +0 days 🔍
03/24/2007 +2 days 🔍
03/30/2007 +6 days 🔍
04/02/2007 +3 days 🔍
04/03/2007 +1 days 🔍
04/10/2007 +7 days 🔍
10/17/2007 +190 days 🔍
01/20/2025 +6305 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco.com
Researcher: Radu State Olivier Festor
Organization: Humberto J. Abdelnur
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-1561 (🔍)
GCVE (CVE): GCVE-0-2007-1561
GCVE (VulDB): GCVE-100-2986

OVAL: 🔍

X-Force: 33068 - Asterisk SIP INVITE denial of service, Medium Risk
SecurityFocus: 23031 - Asterisk SIP Invite Message Remote Denial of Service Vulnerability
Secunia: 24719 - Gentoo update for asterisk, Moderately Critical
OSVDB: 34479 - Asterisk Malformed SIP INVITE Request DoS
SecurityTracker: 1017794
Vulnerability Center: 14790 - Asterisk Denial of Service via SIP INVITE Message, Medium
Vupen: ADV-2007-1039

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 03/30/2007 11:36
Updated: 01/20/2025 02:08
Changes: 03/30/2007 11:36 (113), 07/17/2019 16:22 (1), 01/20/2025 02:08 (16)
Complete: 🔍
Cache ID: 216:D48:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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