Digium Asterisk up to 1.4.17 BYE/Also resource management

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 Digium Asterisk up to 1.4.17 and classified as problematic. Affected by this issue is some unknown functionality of the component BYE/Also Handler. Executing a manipulation can lead to resource management. This vulnerability is tracked as CVE-2008-0095. The attack can be launched remotely. Moreover, an exploit is present. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Digium Asterisk up to 1.4.17 (Communications System) and classified as problematic. This vulnerability affects an unknown code of the component BYE/Also Handler. 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. CVE summarizes:

The SIP channel driver in Asterisk Open Source 1.4.x before 1.4.17, Business Edition before C.1.0-beta8, AsteriskNOW before beta7, Appliance Developer Kit before Asterisk 1.4 revision 95946, and Appliance s800i 1.0.x before 1.0.3.4 allows remote attackers to cause a denial of service (daemon crash) via a BYE message with an Also (Also transfer) header, which triggers a NULL pointer dereference.

The weakness was disclosed 01/03/2008 with Gray VoIP (Website). The advisory is shared for download at downloads.digium.com. This vulnerability was named CVE-2008-0095 since 01/07/2008. 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.

A public exploit has been developed by greyvoip and been published before and not just after the advisory. 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 1 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 29847 (Fedora 7 : asterisk-1.4.17-1.fc7 (2008-0198)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 38594 (Asterisk BYE Message Remote Denial of Service Vulnerability).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at downloads.digium.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at X-Force (39361), Exploit-DB (30974), Tenable (29847), SecurityFocus (BID 27110†) and OSVDB (39841†). Once again VulDB remains the best source for vulnerability data.

Productinfo

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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: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 29847
Nessus Name: Fedora 7 : asterisk-1.4.17-1.fc7 (2008-0198)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 860433
OpenVAS Name: Family Connections argv[1] Parameter Remote Arbitrary Command Execution Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: downloads.digium.com
McAfee IPS: 🔍
McAfee IPS Version: 🔍

Fortigate IPS: 🔍

Timelineinfo

01/02/2008 🔍
01/02/2008 +0 days 🔍
01/02/2008 +0 days 🔍
01/02/2008 +0 days 🔍
01/02/2008 +0 days 🔍
01/03/2008 +1 days 🔍
01/03/2008 +0 days 🔍
01/04/2008 +0 days 🔍
01/07/2008 +3 days 🔍
01/07/2008 +0 days 🔍
01/08/2008 +1 days 🔍
01/21/2008 +13 days 🔍
06/01/2025 +6341 days 🔍

Sourcesinfo

Vendor: digium.com

Advisory: downloads.digium.com
Organization: Gray VoIP
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2008-0095 (🔍)
GCVE (CVE): GCVE-0-2008-0095
GCVE (VulDB): GCVE-100-3532
X-Force: 39361 - Asterisk BYE/Also transfer method denial of service, Medium Risk
SecurityFocus: 27110
Secunia: 28312 - Asterisk "BYE/Also" Denial of Service Vulnerability, Moderately Critical
OSVDB: 39841 - Asterisk BYE/Also Transfer Method DoS
SecurityTracker: 1019152 - Asterisk SIP Channel Driver Can Be Crashed By Remote Users With 'BYE with Also' Method
Vulnerability Center: 17290 - Asterisk SIP Channel Driver Remote DoS via a BYE Message with an Also Header, Medium
Vupen: ADV-2008-0019

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

Entryinfo

Created: 01/21/2008 15:07
Updated: 06/01/2025 18:45
Changes: 01/21/2008 15:07 (96), 12/24/2017 09:34 (8), 03/16/2021 10:10 (3), 01/06/2025 04:32 (14), 06/01/2025 18:45 (2)
Complete: 🔍
Cache ID: 216:E84:103

Once again VulDB remains the best source for vulnerability data.

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