CVE-2020-25843 CHANGING Inc. NHIServiSignAdapter Windows Versions - Heap Overflow

High 8.1 Published Updated

Remote attackers can execute arbitrary code via a heap overflow in NHIServiSignAdapter caused by improper path length verification.

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-2020-25843?

CVE-2020-25843 is a high-severity memory corruption vulnerability in CHANGING Inc. NHIServiSignAdapter, published on 31 Dec 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

NHIServiSignAdapter fails to verify the length of digital credential files’ path which leads to a heap overflow loophole. Remote attackers can use the leak to execute code without privilege.

Weakness: CWE-787, CWE-122

Which versions are affected by CVE-2020-25843?

It affects 1 product.

Products include Panorama Nhiservisignadapter.

How do I fix CVE-2020-25843?

No fix has been published for CVE-2020-25843 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2020-25843 being exploited?

There is no known exploitation of CVE-2020-25843 in the wild and no public exploit code.

Sources

Also known as GHSA-6x24-83hx-xqw8.

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