Cisco IOS 15.4/15.5/15.6 IKEv1 State Machine data processing

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 problematic has been found in Cisco IOS 15.4/15.5/15.6. This impacts an unknown function of the component IKEv1 State Machine. Performing a manipulation results in data processing. This vulnerability is cataloged as CVE-2015-6429. It is possible to initiate the attack remotely. There is no exploit available. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Cisco IOS 15.4/15.5/15.6 (Router Operating System). This affects some unknown processing of the component IKEv1 State Machine. The manipulation with an unknown input leads to a data processing vulnerability. CWE is classifying the issue as CWE-19. This is going to have an impact on availability. The summary by CVE is:

The IKEv1 state machine in Cisco IOS 15.4 through 15.6 and IOS XE 3.15 through 3.17 allows remote attackers to cause a denial of service (IPsec connection termination) via a crafted IKEv1 packet to a tunnel endpoint, aka Bug ID CSCuw08236.

The weakness was shared 12/19/2015 as CSCuw08236 as confirmed advisory (Website). The advisory is shared at tools.cisco.com. This vulnerability is uniquely identified as CVE-2015-6429 since 08/17/2015. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 87820 (Cisco IOS Software IKEv1 State Machine DoS (CSCuw08236)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO and running in the context l.

Applying a patch is able to eliminate this problem. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (87820), SecurityFocus (BID 79745†) and Vulnerability Center (SBV-55338†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Affected

  • Cisco IOS 15.4/15.5/15.6
  • Cisco IOS XE 3.15/3.16/3.17

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
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Data processing
CWE: CWE-19
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: 87820
Nessus Name: Cisco IOS Software IKEv1 State Machine DoS (CSCuw08236)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 103403
OpenVAS Name: Cisco IOS and IOS XE Software IKEv1 State Machine Denial of Service Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/17/2015 🔍
12/18/2015 +123 days 🔍
12/18/2015 +0 days 🔍
12/19/2015 +1 days 🔍
12/19/2015 +0 days 🔍
12/20/2015 +1 days 🔍
12/22/2015 +2 days 🔍
01/08/2016 +17 days 🔍
07/01/2022 +2366 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: CSCuw08236
Status: Confirmed

CVE: CVE-2015-6429 (🔍)
GCVE (CVE): GCVE-0-2015-6429
GCVE (VulDB): GCVE-100-79869

OVAL: 🔍

SecurityFocus: 79745
SecurityTracker: 1034505
Vulnerability Center: 55338 - [cisco-sa-20151218-ios] Cisco IOS, IOS XE Remote DoS in IKEv1 State Machine, Medium

Entryinfo

Created: 12/22/2015 10:16
Updated: 07/01/2022 13:18
Changes: 12/22/2015 10:16 (49), 06/19/2018 21:01 (23), 07/01/2022 13:18 (2)
Complete: 🔍
Cache ID: 216::103

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