CVE-2017-12706 Memory corruption in Advantech WebAccess

Critical 9.8 Published Updated

Stack-based buffer overflow in Advantech WebAccess allows attackers to execute arbitrary code via improper validation of user-supplied data.

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-2017-12706?

CVE-2017-12706 is a critical memory corruption vulnerability in Advantech Webaccess, published on 30 Aug 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A stack-based buffer overflow issue was discovered in Advantech WebAccess versions prior to V8.2_20170817. Researchers have identified multiple vulnerabilities where there is a lack of proper validation of the length of user-supplied data prior to copying it to a stack-based buffer, which could allow an attacker to execute arbitrary code under the context of the process.

Weakness: CWE-119, CWE-121

Which versions are affected by CVE-2017-12706?

It affects 1 product.

Products include Advantech Webaccess.

How do I fix CVE-2017-12706?

No fix has been published for CVE-2017-12706 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-2017-12706 being exploited?

There is no known exploitation of CVE-2017-12706 in the wild and no public exploit code.

All Advantech Webaccess vulnerabilities

Sources

Also known as GHSA-3fq7-vqr9-hr59.

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