VDB-94028 · CVE-2016-6474 · BID 94773

Cisco IOS/IOS XE 15.5(2.25)T X.509v3 SSH Authentication improper authentication

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Cisco IOS and IOS XE 15.5(2.25)T and classified as critical. Affected by this vulnerability is an unknown functionality of the component X.509v3 SSH Authentication. Such manipulation leads to improper authentication. This vulnerability is listed as CVE-2016-6474. The attack may be performed from remote. There is no available exploit. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco IOS and IOS XE 15.5(2.25)T (Router Operating System) and classified as critical. Affected by this issue is an unknown code of the component X.509v3 SSH Authentication. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability.

The bug was discovered 12/07/2016. The weakness was presented 12/07/2016 as cisco-sa-20161207-ios-xe-x509 as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability is handled as CVE-2016-6474 since 07/26/2016. The attack may be launched remotely. A simple authentication is needed for exploitation. There are neither technical details nor an exploit publicly available.

Upgrading eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at SecurityFocus (BID 94773†) and SecurityTracker (ID 1037420†). See VDB-94027 for similar entry. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.1

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.3
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
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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OpenVAS ID: 65708
OpenVAS Name: Cisco IOS Software SSH X.509 Authentication Bypass Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Timelineinfo

07/26/2016 🔍
12/07/2016 +134 days 🔍
12/07/2016 +0 days 🔍
12/07/2016 +0 days 🔍
12/07/2016 +0 days 🔍
12/09/2016 +2 days 🔍
12/10/2016 +1 days 🔍
12/13/2016 +3 days 🔍
10/05/2022 +2122 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20161207-ios-xe-x509
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-6474 (🔍)
GCVE (CVE): GCVE-0-2016-6474
GCVE (VulDB): GCVE-100-94028

OVAL: 🔍

SecurityFocus: 94773 - Cisco IOS and IOS XE Software CVE-2016-6474 Authentication Bypass Vulnerability
SecurityTracker: 1037420

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

Entryinfo

Created: 12/10/2016 18:33
Updated: 10/05/2022 13:54
Changes: 12/10/2016 18:33 (64), 06/23/2019 09:31 (13), 10/05/2022 13:54 (3)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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