VDB-94027 · CVE-2016-9201 · BID 94811

Cisco IOS/IOS XE 15.3(3)M3 Zone-Based Firewall input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.3$0-$5k0.00

A vulnerability has been found in Cisco IOS and IOS XE 15.3(3)M3 (Router Operating System) and classified as critical. Affected by this vulnerability is an unknown part of the component Zone-Based Firewall. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability.

The bug was discovered 12/07/2016. The weakness was disclosed 12/07/2016 with Cisco as cisco-sa-20161207-ios-zbf as confirmed advisory (Website). It is possible to read the advisory at tools.cisco.com. This vulnerability is known as CVE-2016-9201 since 11/06/2016. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available. The advisory points out:

The vulnerability is due to a logic flaw in a corner case scenario. An attacker could exploit this vulnerability by sending traffic that would have been dropped by the policy.

Upgrading to version 15.5(3)M4.1, 15.6(2)T0.1, 15.6(2.0.1a)T0, 15.6(2.19)T or 15.6(3)M 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 94811†) and SecurityTracker (ID 1037419†). The entry VDB-94028 is pretty similar.

Productinfo

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

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: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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OpenVAS ID: 892641
OpenVAS Name: Cisco IOS Software Zone-Based Firewall Feature 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: 🔍

Upgrade: IOS/IOS XE 15.5(3)M4.1/15.6(2)T0.1/15.6(2.0.1a)T0/15.6(2.19)T/15.6(3)M

Timelineinfo

11/06/2016 🔍
12/07/2016 +31 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-zbf
Organization: Cisco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-9201 (🔍)
OVAL: 🔍

SecurityFocus: 94811 - Cisco IOS and Cisco IOS XE Software CVE-2016-9201 Security Bypass Vulnerability
SecurityTracker: 1037419

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

Entryinfo

Created: 12/10/2016 06:32 PM
Updated: 10/05/2022 01:48 PM
Changes: 12/10/2016 06:32 PM (65), 06/23/2019 09:26 AM (14), 10/05/2022 01:48 PM (3)
Complete: 🔍
Cache ID: 18:FC1:40

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