Digium Asterisk 1.8.7/10.0.0 Channel Driver chan_sip.c input validation

CVSS Meta Temp Score
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CTI Interest Score
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6.2$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Digium Asterisk 1.8.7/10.0.0. The affected element is an unknown function of the file chan_sip.c of the component Channel Driver. Such manipulation leads to input validation. This vulnerability is documented as CVE-2011-4063. The attack can be executed remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Digium Asterisk 1.8.7/10.0.0 (Communications System). Affected by this issue is an unknown functionality of the file chan_sip.c of the component Channel Driver. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. CVE summarizes:

chan_sip.c in the SIP channel driver in Asterisk Open Source 1.8.x before 1.8.7.1 and 10.x before 10.0.0-rc1 does not properly initialize variables during request parsing, which allows remote authenticated users to cause a denial of service (daemon crash) via a malformed request.

The weakness was released 10/21/2011 (Website). The advisory is available at xforce.iss.net. This vulnerability is handled as CVE-2011-4063. The exploitation is known to be easy. The attack may be launched remotely. The successful exploitation needs a simple authentication. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 56787 (Fedora 16 : asterisk-1.8.7.1-1.fc16 (2011-14480)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks.

Upgrading to version 1.8.7 eliminates this vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 12337.

The vulnerability is also documented in the databases at X-Force (70706), Tenable (56787), SecurityFocus (BID 50177†), SecurityTracker (ID 1026191†) and Vulnerability Center (SBV-33643†). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 56787
Nessus Name: Fedora 16 : asterisk-1.8.7.1-1.fc16 (2011-14480)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 70618
OpenVAS Name: FreeBSD Ports: asterisk18
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Asterisk 1.8.7
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

10/15/2011 🔍
10/17/2011 +2 days 🔍
10/21/2011 +4 days 🔍
10/21/2011 +0 days 🔍
10/21/2011 +0 days 🔍
10/30/2011 +9 days 🔍
11/14/2011 +15 days 🔍
03/23/2015 +1225 days 🔍
12/28/2024 +3568 days 🔍

Sourcesinfo

Vendor: digium.com

Advisory: xforce.iss.net
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2011-4063 (🔍)
GCVE (CVE): GCVE-0-2011-4063
GCVE (VulDB): GCVE-100-59186
X-Force: 70706
SecurityFocus: 50177 - Asterisk Uninitalized Variable SIP Channel Driver Denial of Service Vulnerability
Secunia: 46420
SecurityTracker: 1026191
Vulnerability Center: 33643 - Asterisk Open Source 1.8.x before 1.8.7.1 and 10.x before 10.0.0-rc1 SIP Channel Driver Remote DoS, Medium

Entryinfo

Created: 03/23/2015 16:50
Updated: 12/28/2024 21:32
Changes: 03/23/2015 16:50 (65), 12/24/2017 09:37 (11), 11/24/2021 14:47 (5), 11/24/2021 14:49 (1), 12/28/2024 21:32 (17)
Complete: 🔍
Cache ID: 216::103

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

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