Allen Bradley MicroLogix 1400 up to 21.2 File Permission Crafted Packet access control

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.0$0-$5k0.00

Summaryinfo

A vulnerability was found in Allen Bradley MicroLogix 1400 up to 21.2. It has been classified as critical. This vulnerability affects unknown code of the component File Permission. This manipulation as part of Crafted Packet causes access control. This vulnerability is registered as CVE-2017-14467. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability was found in Allen Bradley MicroLogix 1400 up to 21.2. It has been declared as critical. Affected by this vulnerability is an unknown code block of the component File Permission. The manipulation as part of a Crafted Packet leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

An exploitable access control vulnerability exists in the data, program, and function file permissions functionality of Allen Bradley Micrologix 1400 Series B FRN 21.2 and before. A specially crafted packet can cause a read or write operation resulting in disclosure of sensitive information, modification of settings, or modification of ladder logic. An attacker can send unauthenticated packets to trigger this vulnerability. Required Keyswitch State: REMOTE Description: Live rung edits are able to be made by an unauthenticated user allowing for addition, deletion, or modification of existing ladder logic. Additionally, faults and cpu state modification can be triggered if specific ladder logic is used.

The bug was discovered 03/28/2018. The weakness was published 04/05/2018 (Website). It is possible to read the advisory at talosintelligence.com. This vulnerability is known as CVE-2017-14467 since 09/13/2017. The exploitation appears to be easy. 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 attack technique deployed by this issue is T1068 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 8 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Similar entries are available at VDB-115850, VDB-115851, VDB-115852 and VDB-115853. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.0
VulDB Meta Temp Score: 9.0

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

NVD Base Score: 9.8
NVD Vector: 🔍

CNA Base Score: 10.0
CNA Vector (Talos): 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/13/2017 🔍
03/28/2018 +196 days 🔍
04/05/2018 +8 days 🔍
04/05/2018 +0 days 🔍
04/06/2018 +1 days 🔍
02/27/2023 +1788 days 🔍

Sourcesinfo

Advisory: talosintelligence.com
Status: Not defined

CVE: CVE-2017-14467 (🔍)
GCVE (CVE): GCVE-0-2017-14467
GCVE (VulDB): GCVE-100-115855
See also: 🔍

Entryinfo

Created: 04/06/2018 09:00
Updated: 02/27/2023 08:36
Changes: 04/06/2018 09:00 (59), 01/22/2020 15:20 (1), 02/27/2023 08:36 (14)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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