Digium Asterisk up to 1.4.10 Channel Driver resource management

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Digium Asterisk up to 1.4.10. This affects an unknown function of the component Channel Driver. This manipulation causes resource management. This vulnerability is tracked as CVE-2009-2726. The attack is possible to be carried out remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in Digium Asterisk up to 1.4.10 (Communications System) and classified as critical. Affected by this vulnerability is some unknown functionality of the component Channel Driver. The manipulation with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect availability. The summary by CVE is:

The SIP channel driver in Asterisk Open Source 1.2.x before 1.2.34, 1.4.x before 1.4.26.1, 1.6.0.x before 1.6.0.12, and 1.6.1.x before 1.6.1.4; Asterisk Business Edition A.x.x, B.x.x before B.2.5.9, C.2.x before C.2.4.1, and C.3.x before C.3.1; and Asterisk Appliance s800i 1.2.x before 1.3.0.3 does not use a maximum width when invoking sscanf style functions, which allows remote attackers to cause a denial of service (stack memory consumption) via SIP packets containing large sequences of ASCII decimal characters, as demonstrated via vectors related to (1) the CSeq value in a SIP header, (2) large Content-Length value, and (3) SDP.

The weakness was disclosed 08/12/2009 with Mu Dynamics (Website). It is possible to read the advisory at vupen.com. This vulnerability is known as CVE-2009-2726. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 41632 (Fedora 10 : asterisk-1.6.0.15-1.fc10 (2009-9374)), 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 1.4.11 eliminates this vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 9199.

The vulnerability is also documented in the databases at X-Force (52391), Tenable (41632), SecurityFocus (BID 36015†), SecurityTracker (ID 1022705†) and Vulnerability Center (SBV-23384†). The entries VDB-47097 and VDB-49995 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
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: 41632
Nessus Name: Fedora 10 : asterisk-1.6.0.15-1.fc10 (2009-9374)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 64967
OpenVAS Name: Fedora Core 10 FEDORA-2009-9374 (asterisk)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Asterisk 1.4.11
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

Fortigate IPS: 🔍

Timelineinfo

08/10/2009 🔍
08/10/2009 +0 days 🔍
08/10/2009 +0 days 🔍
08/12/2009 +2 days 🔍
08/12/2009 +0 days 🔍
09/06/2009 +25 days 🔍
03/18/2015 +2019 days 🔍
12/29/2024 +3574 days 🔍

Sourcesinfo

Vendor: digium.com

Advisory: vupen.com⛔
Organization: Mu Dynamics
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2009-2726 (🔍)
GCVE (CVE): GCVE-0-2009-2726
GCVE (VulDB): GCVE-100-49387
X-Force: 52391
SecurityFocus: 36015 - Asterisk SIP Channel Driver 'scanf' Multiple Remote Denial of Service Vulnerabilities
SecurityTracker: 1022705
Vulnerability Center: 23384 - Asterisk Open Source, Business Edition and Appliance SIP Channel Driver Remote DoS Vulnerability, Medium

See also: 🔍

Entryinfo

Created: 03/18/2015 15:15
Updated: 12/29/2024 01:49
Changes: 03/18/2015 15:15 (62), 12/24/2017 09:37 (11), 08/14/2021 00:31 (4), 08/14/2021 00:46 (1), 12/29/2024 01:49 (17)
Complete: 🔍
Cache ID: 216::103

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