Rockwell MicroLogix 1100 1763-L16AWA/1763-L16BBB/1763-L16BWA/1763-L16DWD PCCC Packet input validation
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
6.4 | $0-$5k | 0.00 |
A vulnerability classified as problematic has been found in Rockwell MicroLogix 1100 1763-L16AWA/1763-L16BBB/1763-L16BWA/1763-L16DWD. Affected is an unknown functionality of the component PCCC Packet Handler. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. CVE summarizes:
An Improper Input Validation issue was discovered in Rockwell Automation MicroLogix 1100 controllers 1763-L16BWA, 1763-L16AWA, 1763-L16BBB, and 1763-L16DWD. A remote, unauthenticated attacker could send a single, specially crafted Programmable Controller Communication Commands (PCCC) packet to the controller that could potentially cause the controller to enter a DoS condition.
The bug was discovered 07/18/2017. The weakness was shared 09/20/2017 with Cisco (Website). The advisory is shared for download at securityfocus.com. This vulnerability is traded as CVE-2017-7924 since 04/18/2017. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.
It is declared as highly functional. The vulnerability was handled as a non-public zero-day exploit for at least 64 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.
Product
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 6.4VulDB Meta Temp Score: 6.4
VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.5
NVD Vector: 🔍
CVSSv2
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: Input validationCWE: CWE-20
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Status: Highly functional
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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MetaSploit ID: allen_bradley_pccc.rb
MetaSploit Name: DoS Exploitation of Allen-Bradleys Legacy Protocol (PCCC)
MetaSploit File: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
04/18/2017 🔍07/18/2017 🔍
07/18/2017 🔍
09/20/2017 🔍
09/20/2017 🔍
09/20/2017 🔍
01/13/2021 🔍
Sources
Advisory: securityfocus.com⛔Researcher: Mark Gondree
Organization: Cisco
Status: Not defined
CVE: CVE-2017-7924 (🔍)
SecurityFocus: 99622 - Rockwell Automation MicroLogix 1100 CVE-2017-7924 Remote Denial of Service Vulnerability
Entry
Created: 09/20/2017 23:19Updated: 01/13/2021 14:49
Changes: 09/20/2017 23:19 (57), 11/18/2019 08:25 (8), 01/13/2021 14:49 (3)
Complete: 🔍
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