Digium Asterisk 1.8.15/11.6 HTTPS Connection denial of service

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

Summaryinfo

A vulnerability identified as problematic has been detected in Digium Asterisk 1.8.15/11.6. This issue affects some unknown processing of the component HTTPS Connection Handler. The manipulation leads to denial of service. This vulnerability is traded as CVE-2014-4047. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Digium Asterisk 1.8.15/11.6 (Communications System). It has been rated as problematic. This issue affects some unknown functionality of the component HTTPS Connection Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability.

The weakness was shared 05/09/2014 by Richard Mudgett as AST-2014-007 as confirmed advisory (Website). The advisory is shared at downloads.asterisk.org. The vendor cooperated in the coordination of the public release. The identification of this vulnerability is CVE-2014-4047 since 06/12/2014. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 76088 (Asterisk HTTP Session Handling DoS (AST-2014-007)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc..

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

The patched versions now have a session_inactivity timeout option in http.conf that defaults to 30000 ms. Users should upgrade to a corrected version, apply the released patches, or disable HTTP support.

The vulnerability is also documented in the databases at X-Force (93797), Tenable (76088), SecurityTracker (ID 1030427†) and Vulnerability Center (SBV-45085†). issues.asterisk.org is providing further details. The entries VDB-13591, VDB-13590 and VDB-13588 are related to this item. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Digium Asterisk Open Source 1.8.x/11.x/12.x
  • Digium Asterisk 1.8.15/11.6

Productinfo

Type

Vendor

Name

Version

License

Website

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
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: 76088
Nessus Name: Asterisk HTTP Session Handling DoS (AST-2014-007)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

05/09/2014 🔍
05/09/2014 +0 days 🔍
05/25/2014 +16 days 🔍
06/12/2014 +18 days 🔍
06/12/2014 +0 days 🔍
06/13/2014 +1 days 🔍
06/13/2014 +0 days 🔍
06/17/2014 +4 days 🔍
06/17/2014 +0 days 🔍
06/23/2014 +6 days 🔍
06/22/2021 +2556 days 🔍

Sourcesinfo

Vendor: digium.com

Advisory: AST-2014-007
Researcher: Richard Mudgett
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2014-4047 (🔍)
GCVE (CVE): GCVE-0-2014-4047
GCVE (VulDB): GCVE-100-13589

IAVM: 🔍

X-Force: 93797 - Asterisk connections denial of service, Medium Risk
SecurityTracker: 1030427 - Asterisk HTTP Connection Processing Flaw Lets Remote Users Exhaust Available HTTP Sessions
Vulnerability Center: 45085 - Asterisk Open Source 1.8, 11, 12 and Certified Asterisk 1.8, 11 Remote DoS via Crafted TCP or TLS Connection, Medium

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 06/13/2014 17:43
Updated: 06/22/2021 21:20
Changes: 06/13/2014 17:43 (74), 05/31/2017 08:58 (7), 06/22/2021 21:06 (3), 06/22/2021 21:20 (1)
Complete: 🔍
Cache ID: 216::103

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