Home/CVE/Improper validation of the server’s certificate chain in secure traffic scanning feature considered intermediate certi
CVE

CVE-2023-5594

Improper validation of the server’s certificate chain in secure traffic scanning feature considered intermediate certi

Improper validation of the server’s certificate chain in secure traffic scanning feature considered intermediate certificate signed using the MD5 or SHA1 algorithm as trusted.

HIGH · CVSS 7.5 EPSS 0.00102
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules6 YARA rules0
⬡

Weakness Classification

CWE-295Improper Certificate Validation
CWE-295Improper Certificate Validation
▤

Affected Products & Versions

11
eset endpoint antivirus>= 10.0
eset endpoint antivirusall versions
eset endpoint securityall versions
eset file securityall versions
eset internet securityall versions
eset mail securityall versions
eset nod32 antivirusall versions
eset securityall versions
◈

Sigma Hunt Rules

6
Exact rules name this CVE ID. Product rules name an affected product in their title. Related rules cover techniques used by actors who exploited this CVE. Showing the most relevant matches; the complete related set is on the full drill-down.
producthighKaspersky Endpoint Security Stopped Via CommandLine - Linux
producthighPotential Persistence Via Security Descriptors - ScriptBlock
producthighAllow Service Access Using Security Descriptor Tampering Via Sc.EXE
producthighDeny Service Access Using Security Descriptor Tampering Via Sc.EXE
producthighPython Function Execution Security Warning Disabled In Excel
producthighSecurity Service Disabled Via Reg.EXE
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · security@eset.com
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 NVD21 Dec 2023 · 12:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://support.eset.com/en/ca8562-eset-customer-advisory-improper-following-of-a-certificates-chain-of-trust-in-eset-security-products-fixedVendor Advisory
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