CVE-2023-5594 Improper following of a certificate's chain of trust in ESET security products

High 7.5 Published Updated

Attackers can bypass secure traffic scanning by using certificates signed with weak MD5 or SHA1 algorithms, requiring users to update ESET products.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2023-5594?

CVE-2023-5594 is a high-severity vulnerability in ESET, spol. s r.o. ESET Endpoint Antivirus, published on 21 Dec 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

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.

Weakness: CWE-295

Which versions are affected by CVE-2023-5594?

It affects 9 products.

Products include Eset Endpoint Antivirus, Eset Endpoint Security, Eset File Security, Eset Internet Security, Eset Mail Security, Eset Nod32 Antivirus and 3 more.

How do I fix CVE-2023-5594?

No fix has been published for CVE-2023-5594 yet. Limit exposure of the affected software until one is available.

Is CVE-2023-5594 being exploited?

There is no known exploitation of CVE-2023-5594 in the wild and no public exploit code.

Sources

Also known as GHSA-4mwg-64w4-5g5m.

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