CVE-2021-43928 Command injection in Mail Station
Remote authenticated users can execute arbitrary OS commands in Synology Mail Station via improper neutralization of special elements.
- 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-2021-43928?
CVE-2021-43928 is a critical command injection vulnerability in Synology Mail Station, published on 7 Feb 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Improper neutralization of special elements used in an OS command ('OS Command Injection') vulnerability in mail sending and receiving component in Synology Mail Station before 20211105-10315 allows remote authenticated users to execute arbitrary commands via unspecified vectors.
Weakness: CWE-78
Which versions are affected by CVE-2021-43928?
It affects 1 product.
Products include Synology Mail Station.
How do I fix CVE-2021-43928?
No fix has been published for CVE-2021-43928 yet. Limit exposure of the affected software until one is available.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2021-43928 being exploited?
There is no known exploitation of CVE-2021-43928 in the wild and no public exploit code.
Sources
Also known as GHSA-xcmm-3w7w-cqq9.