Digium Asterisk up to 1.4.10 IAX2 Channel Driver improper authentication

CVSS Meta Temp Score
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Digium Asterisk up to 1.4.10. It has been declared as problematic. The impacted element is an unknown function of the component IAX2 Channel Driver. Such manipulation leads to improper authentication. This vulnerability is traded as CVE-2008-1897. The attack may be launched remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Digium Asterisk up to 1.4.10 (Communications System). Affected by this issue is some unknown processing of the component IAX2 Channel Driver. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is availability. CVE summarizes:

The IAX2 channel driver (chan_iax2) in Asterisk Open Source 1.0.x, 1.2.x before 1.2.28, and 1.4.x before 1.4.19.1; Business Edition A.x.x, B.x.x before B.2.5.2, and C.x.x before C.1.8.1; AsteriskNOW before 1.0.3; Appliance Developer Kit 0.x.x; and s800i before 1.1.0.3, when configured to allow unauthenticated calls, does not verify that an ACK response contains a call number matching the server s reply to a NEW message, which allows remote attackers to cause a denial of service (traffic amplification) via a spoofed ACK response that does not complete a 3-way handshake. NOTE: this issue exists because of an incomplete fix for CVE-2008-1923.

The weakness was shared 04/23/2008 (Website). The advisory is shared for download at redhat.com. This vulnerability is handled as CVE-2008-1897. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 32098 (Fedora 7 : asterisk-1.4.19.1-1.fc7 (2008-3365)), 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 22612.

The vulnerability is also documented in the databases at X-Force (41966), Tenable (32098), SecurityFocus (BID 28901†), Secunia (SA29927†) and SecurityTracker (ID 1019918†). The entry VDB-42105 is related to this item. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Vendor

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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: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
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: Improper authentication
CWE: CWE-287
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: 32098
Nessus Name: Fedora 7 : asterisk-1.4.19.1-1.fc7 (2008-3365)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 60929
OpenVAS Name: Debian Security Advisory DSA 1563-1 (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: 🔍

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

Timelineinfo

04/20/2008 🔍
04/23/2008 +3 days 🔍
04/23/2008 +0 days 🔍
04/23/2008 +0 days 🔍
04/23/2008 +0 days 🔍
05/01/2008 +8 days 🔍
05/11/2008 +10 days 🔍
03/16/2015 +2500 days 🔍
02/27/2025 +3636 days 🔍

Sourcesinfo

Vendor: digium.com

Advisory: redhat.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2008-1897 (🔍)
GCVE (CVE): GCVE-0-2008-1897
GCVE (VulDB): GCVE-100-42104

OVAL: 🔍

X-Force: 41966
SecurityFocus: 28901 - Asterisk IAX2 Packet Amplification Remote Denial of Service Vulnerability
Secunia: 29927
SecurityTracker: 1019918
Vulnerability Center: 18334 - Digium Asterisk Products IAX2 Channel Driver Vulnerability Allows Remote DoS via a NEW Message, Low

See also: 🔍

Entryinfo

Created: 03/16/2015 17:00
Updated: 02/27/2025 10:30
Changes: 03/16/2015 17:00 (65), 12/24/2017 09:36 (12), 07/31/2021 19:47 (4), 07/31/2021 19:54 (1), 12/30/2024 01:50 (17), 02/27/2025 10:30 (1)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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