CVE-2021-21559 Security feature bypass in NetWorker
An unauthenticated attacker can perform man-in-the-middle attacks to intercept and tamper with traffic between the NetWorker client and server due to improper certificate validation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-21559?
CVE-2021-21559 is a high-severity vulnerability in Dell NetWorker, published on 8 Jun 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Dell EMC NetWorker, versions 18.x, 19.1.x, 19.2.x 19.3.x, 19.4, and 19.4.0.1 contain an Improper Certificate Validation vulnerability in the client (NetWorker Management Console) components which uses SSL encrypted connection in order to communicate with the application server. An unauthenticated attacker in the same network collision domain as the NetWorker Management Console client could potentially exploit this vulnerability to perform man-in-the-middle attacks to intercept and tamper the traffic between the client and the application server.
Weakness: CWE-295
Which versions are affected by CVE-2021-21559?
It affects 1 product.
Products include Dell Emc Networker.
How do I fix CVE-2021-21559?
No fix has been published for CVE-2021-21559 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-21559 being exploited?
There is no known exploitation of CVE-2021-21559 in the wild and no public exploit code.
Other vulnerabilities in Dell NetWorker
Sources
Also known as GHSA-jqfx-r8vc-qw5m.