Cisco IOS 15.3S Q931 SETUP Message resource management

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

Summaryinfo

A vulnerability categorized as problematic has been discovered in Cisco IOS 15.3S. The impacted element is an unknown function of the component Q931 SETUP Message Handler. Executing a manipulation can lead to resource management. This vulnerability is tracked as CVE-2015-0731. No exploit exists. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability classified as problematic was found in Cisco IOS 15.3S (Router Operating System). This vulnerability affects an unknown functionality of the component Q931 SETUP Message 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 ISDN implementation in Cisco IOS 15.3S allows remote attackers to cause a denial of service (device reload) via malformed Q931 SETUP messages, aka Bug ID CSCut37890.

The weakness was disclosed 05/16/2015 with Cisco as CSCut37890 as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability was named CVE-2015-0731 since 01/07/2015. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

Applying a patch is able to eliminate this problem.

The vulnerability is also documented in the databases at X-Force (103160), SecurityFocus (BID 74662†), SecurityTracker (ID 1032337†) and Vulnerability Center (SBV-50169†). Once again VulDB remains the best source for vulnerability data.

Productinfo

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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: Resource management
CWE: CWE-399 / 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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

Timelineinfo

01/07/2015 🔍
05/14/2015 +127 days 🔍
05/15/2015 +1 days 🔍
05/15/2015 +0 days 🔍
05/15/2015 +0 days 🔍
05/16/2015 +1 days 🔍
05/17/2015 +1 days 🔍
05/17/2015 +0 days 🔍
06/28/2017 +773 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: CSCut37890
Organization: Cisco
Status: Confirmed

CVE: CVE-2015-0731 (🔍)
GCVE (CVE): GCVE-0-2015-0731
GCVE (VulDB): GCVE-100-75412
X-Force: 103160 - Cisco IOS ISDN denial of service
SecurityFocus: 74662 - Cisco IOS ISDN Q931 SETUP Message Processing Denial of Service Vulnerability
SecurityTracker: 1032337 - Cisco IOS Voice Gateway ISDN Processing Flaw Lets Remote Users Deny Service
Vulnerability Center: 50169 - Cisco IOS 15.3S and 15.3(3)S1 Remote DoS via Malformed Q931 SETUP Messages, Medium

Entryinfo

Created: 05/17/2015 09:52
Updated: 06/28/2017 09:01
Changes: 05/17/2015 09:52 (67), 06/28/2017 09:01 (3)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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