CVE-2021-20473 Auth bypass in Sterling File Gateway

Medium 6.3 Published 7 Oct 2021 Updated 16 Sep 2024

Failure to invalidate sessions on logout allows authenticated users to impersonate others, requiring a patch for IBM Sterling File Gateway.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-20473?

CVE-2021-20473 is a medium-severity authentication bypass vulnerability in Ibm Sterling File Gateway, published on 7 Oct 2021. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

IBM Sterling File Gateway User Interface 2.2.0.0 through 6.1.1.0 does not invalidate session after logout which could allow an authenticated user to impersonate another user on the system. IBM X-Force ID: 196944.

Weakness: CWE-613

Which versions are affected by CVE-2021-20473?

It affects 1 product.

Products include Ibm Sterling File Gateway.

How do I fix CVE-2021-20473?

No fix has been published for CVE-2021-20473 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-2021-20473 being exploited?

There is no known exploitation of CVE-2021-20473 in the wild and no public exploit code.

All Ibm Sterling File Gateway vulnerabilities

Sources

Also known as GHSA-332g-g9j2-2jvj.