Digium Asterisk up to 1.8.4.2 handle_request_info information disclosure

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Digium Asterisk up to 1.8.4.2. It has been classified as problematic. Affected by this issue is the function handle_request_info. The manipulation leads to information disclosure. This vulnerability is uniquely identified as CVE-2011-4598. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in Digium Asterisk up to 1.8.4.2 (Communications System). It has been rated as problematic. This issue affects the function handle_request_info. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is availability. The summary by CVE is:

The handle_request_info function in channels/chan_sip.c in Asterisk Open Source 1.6.2.x before 1.6.2.21 and 1.8.x before 1.8.7.2, when automon is enabled, allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted sequence of SIP requests.

The weakness was disclosed 12/14/2011 (Website). It is possible to read the advisory at debian.org. The identification of this vulnerability is CVE-2011-4598. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 57289 (Asterisk Multiple Vulnerabilities (AST-2011-013 / AST-2011-014)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Misc..

Upgrading to version 1.8.4.3 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (71839), Tenable (57289), SecurityFocus (BID 50989†), OSVDB (77598†) and Vulnerability Center (SBV-34078†). The entry VDB-59686 is pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

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: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 57289
Nessus Name: Asterisk Multiple Vulnerabilities (AST-2011-013 / AST-2011-014)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 70579
OpenVAS Name: Debian Security Advisory DSA 2367-1 (asterisk)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Asterisk 1.8.4.3

Timelineinfo

11/29/2011 🔍
12/14/2011 +15 days 🔍
12/14/2011 +0 days 🔍
12/14/2011 +0 days 🔍
12/19/2011 +5 days 🔍
03/23/2015 +1190 days 🔍
11/28/2021 +2442 days 🔍

Sourcesinfo

Vendor: digium.com

Advisory: dsa-2367
Status: Not defined
Confirmation: 🔍

CVE: CVE-2011-4598 (🔍)
GCVE (CVE): GCVE-0-2011-4598
GCVE (VulDB): GCVE-100-59687
X-Force: 71839
SecurityFocus: 50989
Secunia: 47273
OSVDB: 77598
Vulnerability Center: 34078 - Asterisk Open Source 1.6.2.x and 1.8.x Remote Null Pointer Dereference Vulnerability, Low

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 11/28/2021 10:25
Changes: 03/23/2015 16:50 (42), 07/08/2015 15:49 (18), 11/28/2021 10:14 (5), 11/28/2021 10:19 (8), 11/28/2021 10:25 (1)
Complete: 🔍
Cache ID: 216::103

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

Discussion

No comments yet. Languages: en.

Please log in to comment.

Do you know our Splunk app?

Download it now for free!