Vulnerability Report

CVE-2017-7901

Title: Rockwellautomation 1763-L16Dwd Series B Denial of Service (DoS)

DoS

Proof Of Concept

No public PoC currently indexed for CVE-2017-7901.

CWE Category CWE-330
Published Date Jun 30, 2017
Modified Date Jun 17, 2026
Exploit Status Not Found
Score 8.6 CVSS v3.0
Exploit Probability (EPSS)
6.62%

Vulnerability Summary

CVE-2017-7901: A Predictable Value Range from Previous Values issue was discovered in Rockwell Automation Allen-Bradley MicroLogix 1100 programmable-logic controllers 1763-L16AWA, Series A and B, Version 16.00 and prior versions; 1763-L16BBB, Series A and B, Version 16.00 and prior versions; 1763-L16BWA, Series A and B, Version 16.00 and prior versions; and 1763-L16DWD, Series A and B, Version 16.00 and prior versions and Allen-Bradley MicroLogix 1400 programmable logic controllers 1766-L32AWA, Series A and B, Version 16.00 and prior versions; 1766-L32BWA, Series A and B, Version 16.00 and prior versions; 1766-L32BWAA, Series A and B, Version 16.00 and prior versions; 1766-L32BXB, Series A and B, Version 16.00 and prior versions; 1766-L32BXBA, Series A and B, Version 16.00 and prior versions; and 1766-L32AWAA, Series A and B, Version 16.00 and prior versions. Insufficiently random TCP initial sequence numbers are generated, which may allow an attacker to predict the numbers from previous values. This may allow an attacker to spoof or disrupt TCP connections, resulting in a denial of service for the target device.

Impacted Vendors

R
rockwellautomation 21

Reference Links

http://www.securitytracker.com/id/1038546 https://ics-cert.us-cert.gov/advisories/ICSA-17-115-04 http://www.securitytracker.com/id/1038546 https://ics-cert.us-cert.gov/advisories/ICSA-17-115-04
CVSS v3.0
Source Entity [email protected]
Severity HIGH
8.6
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
CVSS v2.0
Source Entity [email protected]
Severity HIGH
9.0
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:N/AC:L/Au:N/C:P/I:P/A:C

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2017-7901 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

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Vulnerability data updated via NVD.

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Vulnerability data updated via NVD.

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Vulnerability data updated via NVD.

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Vulnerability data updated via NVD.

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Vulnerability data updated via NVD.

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Vulnerability data updated via NVD.

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Vulnerability data updated via NVD.

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Vulnerability data updated via NVD.

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Vulnerability data updated via NVD.

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Vulnerability data updated via NVD.

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Vulnerability data updated via NVD.

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Vulnerability data updated via NVD.

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Vulnerability data updated via NVD.

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Vulnerability data updated via NVD.

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Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

Affected Stack

No specific products linked.