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CVE-2019-19102— Zip Slip vulnerability in 3rd-Party library 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 Studio是奥地利B&R Automation公司的一套集成化的软件开发环境。SharpZipLib（#ziplib，前称NZipLib）是ICSharpCode团队的一个开源的用在.NET平台中的C#压缩解压库，它支持解压和压缩Zip、GZip、BZip2、Tar等格式的文件。 B&R Automation Studio 4.0.x版本、4.1.x版本和4.2.x版本的更新服务中使用的SharpZipLib库存在路径遍历漏洞。攻击者可利用该漏洞对一些本地目录进行写入操作。

CVSS 5.5 · Medium EPSS 1.28% · P69

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2019-19102

Vulnerability Information
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Vulnerability Title
Zip Slip vulnerability in 3rd-Party library in B&R Automation Studio upgrade service
Source: CVE Program / CVE List V5
Vulnerability Description
A directory traversal vulnerability in SharpZipLib used in the upgrade service in B&R Automation Studio versions 4.0.x, 4.1.x and 4.2.x allow unauthenticated users to write to certain local directories. The vulnerability is also known as zip slip.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
B&R Automation Studio 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
B&R Automation Studio是奥地利B&R Automation公司的一套集成化的软件开发环境。SharpZipLib（#ziplib，前称NZipLib）是ICSharpCode团队的一个开源的用在.NET平台中的C#压缩解压库，它支持解压和压缩Zip、GZip、BZip2、Tar等格式的文件。 B&R Automation Studio 4.0.x版本、4.1.x版本和4.2.x版本的更新服务中使用的SharpZipLib库存在路径遍历漏洞。攻击者可利用该漏洞对一些本地目录进行写入操作。
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-2019-19102

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III. Intelligence Information for CVE-2019-19102

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Other References for CVE-2019-19102 (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-2019-19101 6.5 MEDIUM Incomplete communication encryption and validation in B&R Automation Studio upgrade servic

IV. Related Vulnerabilities

Same product: Automation Studio
Same vendor: B&R
Same weakness: CWE-22

V. Comments for CVE-2019-19102

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