Cisco IOS up to 15.6 Common Industrial Protocol CIP Packet input validation

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
6.3$5k-$25k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Cisco IOS up to 15.6. This affects an unknown function of the component Common Industrial Protocol Handler. Executing a manipulation as part of CIP Packet can lead to input validation. This vulnerability is handled as CVE-2017-12234. The attack can be executed remotely. Additionally, an exploit exists. The application of restrictive firewalling is recommended.

Detailsinfo

A vulnerability classified as problematic was found in Cisco IOS up to 15.6 (Router Operating System). This vulnerability affects an unknown part of the component Common Industrial Protocol Handler. The manipulation as part of a CIP Packet 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 availability. CVE summarizes:

Multiple vulnerabilities in the implementation of the Common Industrial Protocol (CIP) feature in Cisco IOS 12.4 through 15.6 could allow an unauthenticated, remote attacker to cause an affected device to reload, resulting in a denial of service (DoS) condition. The vulnerabilities are due to the improper parsing of crafted CIP packets destined to an affected device. An attacker could exploit these vulnerabilities by sending crafted CIP packets to be processed by an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Cisco Bug IDs: CSCvc43709.

The bug was discovered 09/27/2017. The weakness was released 09/29/2017 with Cisco (Website). The advisory is shared for download at securitytracker.com. This vulnerability was named CVE-2017-12234 since 08/03/2017. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Technical details are unknown but an exploit is available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 09/09/2024).

It is declared as attacked. The vulnerability scanner Nessus provides a plugin with the ID 103668 (Cisco IOS Software CIP Multiple Vulnerabilities (cisco-sa-20170927-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 l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 316155 (Cisco IOS Software Common Industrial Protocol Request Denial of Service Vulnerabilities (cisco-sa-20170927-cip)). This issue was added on 03/03/2022 to the CISA Known Exploited Vulnerabilities Catalog with a due date of 03/24/2022:

Apply updates per vendor instructions.

Proper firewalling of is able to address this issue. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (103668) and SecurityFocus (BID 101038†). Entry connected to this vulnerability is available at VDB-107235. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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: Attacked

EPSS Score: 🔍
EPSS Percentile: 🔍

KEV Added: 🔍
KEV Due: 🔍
KEV Remediation: 🔍
KEV Ransomware: 🔍
KEV Notice: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 103668
Nessus Name: Cisco IOS Software CIP Multiple Vulnerabilities (cisco-sa-20170927-cip)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Firewall
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/03/2017 🔍
09/27/2017 +55 days 🔍
09/27/2017 +0 days 🔍
09/27/2017 +0 days 🔍
09/28/2017 +1 days 🔍
09/29/2017 +1 days 🔍
09/29/2017 +0 days 🔍
10/05/2017 +6 days 🔍
09/09/2024 +2531 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: securitytracker.com⛔
Researcher: Cisco
Organization: Cisco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-12234 (🔍)
GCVE (CVE): GCVE-0-2017-12234
GCVE (VulDB): GCVE-100-107236

OVAL: 🔍

SecurityFocus: 101038 - Cisco IOS Software Common Industrial Protocol Multiple Denial of Service Vulnerabilities
SecurityTracker: 1039459

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 09/29/2017 12:00
Updated: 09/09/2024 22:29
Changes: 09/29/2017 12:00 (72), 11/20/2019 13:07 (6), 01/14/2021 17:42 (3), 01/14/2021 17:46 (1), 04/23/2024 19:12 (27), 07/17/2024 02:26 (1), 09/09/2024 22:29 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Want to know what is going to be exploited?

We predict KEV entries!