Home/CVE/Improper Handling of Parameters vulnerability in BG-TEK COSLAT Firewall allows Remote Code Inclusion. This issue affect
CVE

CVE-2021-4105

Improper Handling of Parameters vulnerability in BG-TEK COSLAT Firewall allows Remote Code Inclusion. This issue affect

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.

CRITICAL · CVSS 9.8 EPSS 0.00725
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-755Improper Handling of Exceptional Conditions
▤

Affected Products & Versions

8
bg-tek coslat bx5s1d3 firmware>= 5.24.0.r.20180630 and < 5.24.0.r.20210727
bg-tek coslat bx5s1d4 firmware>= 5.24.0.r.20180630 and < 5.24.0.r.20210727
bg-tek coslat bx5s1d5 firmware>= 5.24.0.r.20180630 and < 5.24.0.r.20210727
bg-tek coslat rm1ds1000 firmware>= 5.24.0.r.20180630 and < 5.24.0.r.20210727
bg-tek coslat rm2ds2000 firmware>= 5.24.0.r.20180630 and < 5.24.0.r.20210727
bg-tek coslat rm2s200 firmware>= 5.24.0.r.20180630 and < 5.24.0.r.20210727
bg-tek coslat rm3s300 firmware>= 5.24.0.r.20180630 and < 5.24.0.r.20210727
bg-tek coslat rm4s500 firmware>= 5.24.0.r.20180630 and < 5.24.0.r.20210727
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · iletisim@usom.gov.tr
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD24 Feb 2023 · 12:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://blog.coslat.com/2021/07/onemli-kritik-guncelleme-2021-07-27.htmlVendor Advisory
https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-23-0108
https://www.usom.gov.tr/bildirim/tr-23-0108Third Party Advisory
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