Digium Asterisk up to 1.8.20.1 Error information disclosure

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

Summaryinfo

A vulnerability classified as critical has been found in Digium Asterisk up to 1.8.20.1. Affected by this issue is some unknown functionality of the component Error Handler. This manipulation causes information disclosure. The identification of this vulnerability is CVE-2013-2264. It is possible to initiate the attack remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Digium Asterisk up to 1.8.20.1 (Communications System). Affected by this vulnerability is some unknown processing of the component Error Handler. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality. The summary by CVE is:

The SIP channel driver in Asterisk Open Source 1.8.x before 1.8.20.2, 10.x before 10.12.2, and 11.x before 11.2.2; Certified Asterisk 1.8.15 before 1.8.15-cert2; Asterisk Business Edition (BE) C.3.x before C.3.8.1; and Asterisk Digiumphones 10.x-digiumphones before 10.12.2-digiumphones exhibits different behavior for invalid INVITE, SUBSCRIBE, and REGISTER transactions depending on whether the user account exists, which allows remote attackers to enumerate account names by (1) reading HTTP status codes, (2) reading additional text in a 403 (aka Forbidden) response, or (3) observing whether certain retransmissions occur.

The weakness was shared 02/21/2013 by Walter Doekes with OSSO BV as confirmed advisory (Website). It is possible to read the advisory at issues.asterisk.org. The vendor cooperated in the coordination of the public release. This vulnerability is known as CVE-2013-2264 since 02/20/2013. 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 attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 66152 (Mandriva Linux Security Advisory : asterisk (MDVSA-2013:140)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Mandriva Local Security Checks.

Upgrading to version 1.8.20.2 eliminates this vulnerability. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (83127), Tenable (66152), SecurityFocus (BID 58756†), OSVDB (91752†) and Secunia (SA52776†). The entries VDB-8120 and VDB-8121 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: 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: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
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: 66152
Nessus Name: Mandriva Linux Security Advisory : asterisk (MDVSA-2013:140)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 865538
OpenVAS Name: Fedora Update for asterisk FEDORA-2013-4528
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Asterisk 1.8.20.2

Timelineinfo

02/20/2013 🔍
02/21/2013 +1 days 🔍
02/21/2013 +0 days 🔍
03/27/2013 +34 days 🔍
03/27/2013 +0 days 🔍
03/27/2013 +0 days 🔍
03/28/2013 +1 days 🔍
04/01/2013 +4 days 🔍
04/02/2013 +1 days 🔍
04/14/2013 +12 days 🔍
04/20/2013 +6 days 🔍
05/06/2021 +2938 days 🔍

Sourcesinfo

Vendor: digium.com

Advisory: issues.asterisk.org
Researcher: Walter Doekes
Organization: OSSO BV
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2013-2264 (🔍)
GCVE (CVE): GCVE-0-2013-2264
GCVE (VulDB): GCVE-100-8119

IAVM: 🔍

X-Force: 83127
SecurityFocus: 58756 - Multiple Asterisk Products CVE-2013-2686 'Content-Length' Header Denial of Service Vulnerability
Secunia: 52776 - Asterisk Multiple Vulnerabilities, Highly Critical
OSVDB: 91752
SecurityTracker: 1028361 - Asterisk SIP Channel Driver Discloses Username Information to Remote Users
Vulnerability Center: 39100 - Digium Asterisk Multiple Products Remote Leakage of Account Names via SIP Transactions, Medium

See also: 🔍

Entryinfo

Created: 04/02/2013 15:40
Updated: 05/06/2021 16:36
Changes: 04/02/2013 15:40 (82), 12/24/2017 09:40 (11), 05/06/2021 16:36 (2)
Complete: 🔍
Committer:
Cache ID: 216::103

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

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