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CVE-2021-4105— Unauthenticated Remote Code Execution on COSLAT Firewall

Quick assessment

Affected
BG-TEK COSLAT Firewall
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.

BG-TEK COSLAT Firewall是土耳其BG-TEK公司的一系列防火墙。 BG-TEK COSLAT Firewall 5.24.0.R.20180630 到 5.24.0.R.20210727 版本存在安全漏洞，该漏洞源于防火墙中的参数处理不当，导致远程代码执行。

CVSS 9.8 · Critical EPSS 0.87% · P57

Affected Version Matrix 1

VendorProduct Version RangeStatus
BG-TEK COSLAT Firewall 5.24.0.r.20180630< 5.24.0.r.20210727 affected
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I. Basic Information for CVE-2021-4105

Vulnerability Information
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Vulnerability Title
Unauthenticated Remote Code Execution on COSLAT Firewall
Source: CVE Program / CVE List V5
Vulnerability Description
Improper Handling of Parameters vulnerability in BG-TEK COSLAT Firewall allows Remote Code Inclusion. This issue affects COSLAT Firewall: from 5.24.0.R.20180630 before 5.24.0.R.20210727.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对异常条件的处理不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
BG-TEK COSLAT Firewall 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
BG-TEK COSLAT Firewall是土耳其BG-TEK公司的一系列防火墙。 BG-TEK COSLAT Firewall 5.24.0.R.20180630 到 5.24.0.R.20210727 版本存在安全漏洞，该漏洞源于防火墙中的参数处理不当，导致远程代码执行。
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
BG-TEK COSLAT Firewall 5.24.0.r.20180630 ~ 5.24.0.r.20210727 -

II. Public POCs for CVE-2021-4105

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III. Intelligence Information for CVE-2021-4105

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Vendor Advisories for CVE-2021-4105 (1)

Security Blog Posts for CVE-2021-4105 (1)

Other References for CVE-2021-4105 (1)

IV. Related Vulnerabilities

Same vendor: BG-TEK
Same weakness: CWE-755

V. Comments for CVE-2021-4105

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