Cisco IOS 15.3(3)M/15.3(3)M1 SIP input validation

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Cisco IOS 15.3(3)M/15.3(3)M1. Impacted is an unknown function of the component SIP Handler. Performing a manipulation results in input validation. This vulnerability is cataloged as CVE-2014-2106. There is no exploit available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability classified as critical has been found in Cisco IOS 15.3(3)M/15.3(3)M1 (Router Operating System). This affects an unknown functionality of the component SIP Handler. The manipulation with an unknown input 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:

Cisco IOS 15.3M before 15.3(3)M2 and IOS XE 3.10.xS before 3.10.2S allow remote attackers to cause a denial of service (device reload) via crafted SIP messages, aka Bug ID CSCug45898.

The weakness was shared 03/26/2014 with Cisco as cisco-sa-20140326-sip as confirmed advisory (Website). It is possible to read the advisory at tools.cisco.com. This vulnerability is uniquely identified as CVE-2014-2106 since 02/25/2014. 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 scanner Nessus provides a plugin with the ID 73346 (Cisco IOS XE Software Session Initiation Protocol Denial of Service (cisco-sa-20140326-sip)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO. The commercial vulnerability scanner Qualys is able to test this issue with plugin 43376 (Cisco IOS Software Session Initiation Protocol Denial of Service Vulnerability (cisco-sa-20140326-sip)).

Applying the patch cisco-sa-20140326-sip is able to eliminate this problem. The bugfix is ready for download at tools.cisco.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (92055), Tenable (73346), SecurityFocus (BID 66465†), Secunia (SA57632†) and SecurityTracker (ID 1029957†). The entries VDB-12703 and VDB-12702 are related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • Cisco IOS 15.3(3)M/15.3(3)M1
  • Cisco IOS XE 3.10.0S/3.10.1S1

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 7.5
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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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: 73346
Nessus Name: Cisco IOS XE Software Session Initiation Protocol Denial of Service (cisco-sa-20140326-sip)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

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

Patch: cisco-sa-20140326-sip

Timelineinfo

02/25/2014 🔍
03/26/2014 +29 days 🔍
03/26/2014 +0 days 🔍
03/26/2014 +0 days 🔍
03/26/2014 +0 days 🔍
03/26/2014 +0 days 🔍
03/27/2014 +1 days 🔍
03/27/2014 +0 days 🔍
03/27/2014 +0 days 🔍
04/04/2014 +8 days 🔍
05/09/2026 +4418 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20140326-sip
Organization: Cisco
Status: Confirmed

CVE: CVE-2014-2106 (🔍)
GCVE (CVE): GCVE-0-2014-2106
GCVE (VulDB): GCVE-100-12699

IAVM: 🔍

X-Force: 92055 - Cisco IOS SIP messages denial of service, High Risk
SecurityFocus: 66465 - Cisco IOS SIP Message Processing Denial of Service Vulnerability
Secunia: 57632
SecurityTracker: 1029957 - Cisco IOS SIP Processing Flaw Lets Remote Users Deny Service
Vulnerability Center: 43764 - [cisco-sa-20140326-sip] Cisco IOS and IOS XE Remote Denial of Service Vulnerability in SIP Implementation - CVE-2014-2106, High

See also: 🔍

Entryinfo

Created: 03/27/2014 11:52
Updated: 05/09/2026 03:13
Changes: 03/27/2014 11:52 (49), 05/24/2017 10:37 (36), 06/16/2021 09:01 (3), 12/20/2024 01:22 (16), 05/09/2026 03:13 (1)
Complete: 🔍
Cache ID: 216::103

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