PT-2020-5520 · Rockwell Automation · Factorytalk Linx

Published 2020-12-29 · Updated 2020-12-30 · CVE-2020-5806

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions FactoryTalk Linx (affected versions not specified)

Description The issue is related to the CServerManager::HandleBrowseLoadIconStreamRequest function in messaging.dll, which can lead to unlimited resource allocation. An attacker can exploit this by sending a specially crafted message to the "127.0.0.1:7153" endpoint, potentially causing a denial of service. The CServerManager::HandleBrowseLoadIconStreamRequest function is vulnerable due to the ability to pass an attacker-controlled memory allocation size to the C++ new operator.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Allocation of Resources Without Limits

Weakness Enumeration

CWE-770

Related Identifiers

BDU:2021-01032

CVE-2020-5806

Affected Products

Factorytalk Linx

References · 7

• https://osv.dev/vulnerability/CVE-2020-5806 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-5806 · Security Note
• https://bdu.fstec.ru/vul/2021-01032 · Security Note
• https://t.me/cibsecurity/21386 · Telegram Post
• https://tenable.com/security/research/tra-2020-71 · Note
• https://t.me/cvenotify/7883 · Telegram Post
• https://us-cert.gov/ics/advisories/icsa-21-028-01 · Note