Cisco IOS/IOS XE IPv6 Snooping input validation

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

Summaryinfo

A vulnerability marked as problematic has been reported in Cisco IOS and IOS XE. This affects an unknown function of the component IPv6 Snooping. Performing a manipulation results in input validation. This vulnerability is known as CVE-2015-6279. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Cisco IOS and IOS XE (Router Operating System). This affects an unknown code of the component IPv6 Snooping. 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:

The IPv6 snooping functionality in the first-hop security subsystem in Cisco IOS 12.2, 15.0, 15.1, 15.2, 15.3, 15.4, and 15.5 and IOS XE 3.2SE, 3.3SE, 3.3XO, 3.4SG, 3.5E, and 3.6E before 3.6.3E; 3.7E before 3.7.2E; 3.9S and 3.10S before 3.10.6S; 3.11S before 3.11.4S; 3.12S and 3.13S before 3.13.3S; and 3.14S before 3.14.2S allows remote attackers to cause a denial of service (device reload) via a malformed ND packet with the Cryptographically Generated Address (CGA) option, aka Bug ID CSCuo04400.

The weakness was published 09/28/2015 with Cisco (Website). It is possible to read the advisory at tools.cisco.com. This vulnerability is uniquely identified as CVE-2015-6279 since 08/17/2015. 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 86246 (Cisco IOS IPv6 Snooping DoS (cisco-sa-20150923-fhs)), 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 43036 (Cisco IOS Software IPv6 First Hop Security Denial of Service Vulnerabilities (cisco-sa-20150923-fhs)).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (86246), SecurityFocus (BID 76829†) and Vulnerability Center (SBV-52944†). Similar entry is available at VDB-78074. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • Cisco IOS 12.2 up to 15.5
  • Cisco IOS XE

Productinfo

Type

Vendor

Name

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: Input validation
CWE: CWE-20
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: 86246
Nessus Name: Cisco IOS IPv6 Snooping DoS (cisco-sa-20150923-fhs)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 103403
OpenVAS Name: Cisco IOS and IOS XE Software IPv6 First Hop Security Denial of Service Vulnerabilities
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Timelineinfo

08/17/2015 🔍
09/23/2015 +37 days 🔍
09/23/2015 +0 days 🔍
09/24/2015 +1 days 🔍
09/27/2015 +3 days 🔍
09/28/2015 +1 days 🔍
09/28/2015 +0 days 🔍
06/19/2022 +2456 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: tools.cisco.com
Organization: Cisco
Status: Not defined
Confirmation: 🔍

CVE: CVE-2015-6279 (🔍)
GCVE (CVE): GCVE-0-2015-6279
GCVE (VulDB): GCVE-100-78075
SecurityFocus: 76829 - Cisco IOS and IOS XE Software IPv6 Snooping Multiple Denial of Service Vulnerabilities
SecurityTracker: 1033647
Vulnerability Center: 52944 - [cisco-sa-20150923-fhs] Cisco IOS and IOS-XE Remote DoS Vulnerability due to Insufficient Validation of IPv6 ND Packets, High

scip Labs: https://www.scip.ch/en/?labs.20150108
See also: 🔍

Entryinfo

Created: 09/28/2015 09:30
Updated: 06/19/2022 09:29
Changes: 09/28/2015 09:30 (56), 01/03/2018 09:54 (15), 06/19/2022 09:25 (3), 06/19/2022 09:29 (1)
Complete: 🔍
Cache ID: 216:6B8:103

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