Digium Asterisk 12.0.0/12.1.0 PJSIP Channel Driver Subscription OPTIONS Request input validation

CVSS Meta Temp Score
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CTI Interest Score
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4.6$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Digium Asterisk 12.0.0/12.1.0. Affected by this vulnerability is an unknown functionality of the component PJSIP Channel Driver Subscription Handler. Performing a manipulation as part of OPTIONS Request results in input validation. This vulnerability is cataloged as CVE-2014-2288. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Digium Asterisk 12.0.0/12.1.0 (Communications System). This affects an unknown code of the component PJSIP Channel Driver Subscription Handler. The manipulation as part of a OPTIONS Request leads to a input validation vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. The summary by CVE is:

The PJSIP channel driver in Asterisk Open Source 12.x before 12.1.1, when qualify_frequency "is enabled on an AOR and the remote SIP server challenges for authentication of the resulting OPTIONS request," allows remote attackers to cause a denial of service (crash) via a PJSIP endpoint that does not have an associated outgoing request.

The weakness was shared 03/10/2014 by Joshua Colp as AST-2014-003 as confirmed advisory (Website). It is possible to read the advisory at downloads.asterisk.org. The vendor cooperated in the coordination of the public release. This vulnerability is uniquely identified as CVE-2014-2288 since 03/05/2014. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 40 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 73021 (Asterisk PJSIP Channel Driver Options DoS (AST-2014-003)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc..

Upgrading to version 12.1.0 eliminates this vulnerability. The upgrade is hosted for download at downloads.asterisk.org. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (91827), Tenable (73021), SecurityFocus (BID 66104†), Secunia (SA57354†) and Vulnerability Center (SBV-43909†). The entries VDB-12638, VDB-12640 and VDB-12641 are related to this item. Be aware that VulDB is the high quality 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: 5.3
VulDB Meta Temp Score: 4.6

VulDB Base Score: 5.3
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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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: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 73021
Nessus Name: Asterisk PJSIP Channel Driver Options DoS (AST-2014-003)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Asterisk 12.1.0

Timelineinfo

01/29/2014 🔍
03/05/2014 +35 days 🔍
03/10/2014 +5 days 🔍
03/10/2014 +0 days 🔍
03/10/2014 +0 days 🔍
03/11/2014 +1 days 🔍
03/14/2014 +3 days 🔍
03/18/2014 +4 days 🔍
04/07/2014 +20 days 🔍
04/18/2014 +11 days 🔍
06/15/2021 +2615 days 🔍

Sourcesinfo

Vendor: digium.com

Advisory: AST-2014-003
Researcher: Joshua Colp
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2014-2288 (🔍)
GCVE (CVE): GCVE-0-2014-2288
GCVE (VulDB): GCVE-100-12639

IAVM: 🔍

X-Force: 91827 - Asterisk PJSIP channel driver denial of service, Medium Risk
SecurityFocus: 66104 - Digium Asterisk Open Source CVE-2014-2288 Denial of Service Vulnerability
Secunia: 57354 - Asterisk Multiple Denial of Service Vulnerabilities, Moderately Critical
Vulnerability Center: 43909 - Digium Asterisk Open Source Remote DoS via the PJSIP Channel Driver, Medium

See also: 🔍

Entryinfo

Created: 03/18/2014 10:11
Updated: 06/15/2021 17:50
Changes: 03/18/2014 10:11 (84), 05/24/2017 11:05 (3), 06/15/2021 17:50 (3)
Complete: 🔍
Cache ID: 216:24A:103

Be aware that VulDB is the high quality source for vulnerability data.

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