CVE-2021-31520 Auth bypass in Trend Micro IM Security

High 8.1 Published Updated

Remote attackers can guess weak session tokens to bypass authentication and access the web management interface of Trend Micro IM Security.

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-2021-31520?

CVE-2021-31520 is a high-severity authentication bypass vulnerability in Trend Micro IM Security, published on 10 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A weak session token authentication bypass vulnerability in Trend Micro IM Security 1.6 and 1.6.5 could allow an remote attacker to guess currently logged-in administrators' session session token in order to gain access to the product's web management interface.

Weakness: CWE-287

Which versions are affected by CVE-2021-31520?

It affects 1 product.

Products include Trendmicro Im Security.

How do I fix CVE-2021-31520?

No fix has been published for CVE-2021-31520 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2021-31520 being exploited?

There is no known exploitation of CVE-2021-31520 in the wild and no public exploit code.

Sources

Also known as GHSA-f4cv-895p-vw62.

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