Cisco IOS Common Industrial Protocol Request resource management

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

A vulnerability, which was classified as critical, has been found in Cisco IOS (Router Operating System) (version now known). Affected by this issue is some unknown processing of the component Common Industrial Protocol Request Handler. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. CVE summarizes:

Cisco IOS 12.2 and 15.0 through 15.3 allows remote attackers to cause a denial of service (traffic-processing outage) via a crafted series of Common Industrial Protocol (CIP) requests, aka Bug ID CSCur69036.

The weakness was disclosed 09/28/2016 with Cisco as cisco-sa-20160928-cip as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability is handled as CVE-2016-6391 since 07/26/2016. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 94252 (Cisco IOS Software CIP Request DoS (cisco-sa-20160928-cip)), 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 c. The commercial vulnerability scanner Qualys is able to test this issue with plugin 316033 (Cisco IOS Software Common Industrial Protocol Request Denial of Service Vulnerability (cisco-sa-20160928-cip)).

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 Tenable (94252), SecurityFocus (BID 93197†) and SecurityTracker (ID 1036914†). tools.cisco.com is providing further details. The entries VDB-92251, VDB-92253, VDB-92254 and VDB-92255 are pretty similar.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 94252
Nessus Name: Cisco IOS Software CIP Request DoS (cisco-sa-20160928-cip)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 103403
OpenVAS Name: Cisco IOS Software Common Industrial Protocol Request Denial of Service Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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Timelineinfo

07/26/2016 🔍
09/28/2016 +64 days 🔍
09/28/2016 +0 days 🔍
09/28/2016 +0 days 🔍
09/28/2016 +0 days 🔍
09/30/2016 +2 days 🔍
10/05/2016 +5 days 🔍
10/25/2016 +20 days 🔍
09/24/2024 +2891 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20160928-cip
Organization: Cisco
Status: Confirmed

CVE: CVE-2016-6391 (🔍)
OVAL: 🔍

SecurityFocus: 93197 - Cisco IOS Software CVE-2016-6391 Remote Denial of Service Vulnerability
SecurityTracker: 1036914

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 09/30/2016 10:16 AM
Updated: 09/24/2024 09:31 PM
Changes: 09/30/2016 10:16 AM (73), 04/29/2019 10:27 AM (11), 09/24/2024 09:31 PM (18)
Complete: 🔍
Cache ID: 18:A11:40

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