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CVE-2019-19101— Incomplete communication encryption and validation in B&R Automation Studio upgrade service

Quick assessment

Affected
B&R Automation Studio
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

B&r Automation B&R Automation Studio是奥地利贝加莱工业自动化（B&r Automation）公司的一套集成化的软件开发环境。 B＆R Automation Studio中存在信任管理问题漏洞，该漏洞源于更新服务中缺少安全通信定义和完整的TLS检查。攻击者可借助B＆R更新服务器利用该漏洞实施中间人攻击。以下产品及版本受到影响：Automation Studio 4.0.x版本，4.1.x版本，4.2.x版本，4.3.11SP之前版本，4.4.9SP之前版本，4.5.4SP

CVSS 6.5 · Medium EPSS 0.53% · P43
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I. Basic Information for CVE-2019-19101

Vulnerability Information
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Vulnerability Title
Incomplete communication encryption and validation in B&R Automation Studio upgrade service
Source: CVE Program / CVE List V5
Vulnerability Description
A missing secure communication definition and an incomplete TLS validation in the upgrade service in B&R Automation Studio versions 4.0.x, 4.1.x, 4.2.x, < 4.3.11SP, < 4.4.9SP, < 4.5.5SP, < 4.6.4 and < 4.7.2 enable unauthenticated users to perform MITM attacks via the B&R upgrade server.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
不充分的加密强度
Source: CVE Program / CVE List V5
Vulnerability Title
B&R Automation Studio 信任管理问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
B&r Automation B&R Automation Studio是奥地利贝加莱工业自动化（B&r Automation）公司的一套集成化的软件开发环境。 B＆R Automation Studio中存在信任管理问题漏洞，该漏洞源于更新服务中缺少安全通信定义和完整的TLS检查。攻击者可借助B＆R更新服务器利用该漏洞实施中间人攻击。以下产品及版本受到影响：Automation Studio 4.0.x版本，4.1.x版本，4.2.x版本，4.3.11SP之前版本，4.4.9SP之前版本，4.5.4SP
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
B&R Automation Studio 4.0.x -

II. Public POCs for CVE-2019-19101

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III. Intelligence Information for CVE-2019-19101

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Other References for CVE-2019-19101 (1)

Same Patch Batch · B&R · 2020-04-29 · 3 CVEs total

CVE-2019-19100 7.5 HIGH Privilege escalation via B&R Automation Studio upgrade service
CVE-2019-19102 5.5 MEDIUM Zip Slip vulnerability in 3rd-Party library in B&R Automation Studio upgrade service

IV. Related Vulnerabilities

Same product: Automation Studio
Same vendor: B&R
Same weakness: CWE-326

V. Comments for CVE-2019-19101

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