CVE-2020-4555 Auth bypass in Financial Transaction Manager

Medium 6.3 Published 21 Dec 2020 Updated 17 Sep 2024

Failure to invalidate sessions on logout allows authenticated users to impersonate others, requiring a patch for IBM Financial Transaction Manager.

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-2020-4555?

CVE-2020-4555 is a medium-severity authentication bypass vulnerability in Ibm Financial Transaction Manager, published on 21 Dec 2020. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

IBM Financial Transaction Manager 3.0.6 and 3.1.0 does not invalidate session after logout which could allow an authenticated user to impersonate another user on the system. IBM X-Force ID: 183328.

Weakness: CWE-384

Which versions are affected by CVE-2020-4555?

It affects 1 product.

Products include Ibm Financial Transaction Manager.

How do I fix CVE-2020-4555?

No fix has been published for CVE-2020-4555 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-2020-4555 being exploited?

There is no known exploitation of CVE-2020-4555 in the wild and no public exploit code.

All Ibm Financial Transaction Manager vulnerabilities

Sources

Also known as GHSA-32xw-6g8c-rxjj.