CVE-2020-27652 Weak cryptography in DiskStation Manager (DSM)

High 8.3 Published Updated

Man-in-the-middle attackers can downgrade encryption algorithms in Synology DSM QuickConnect to spoof servers and obtain sensitive information.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
A user has to click or open something
Fix
None listed

What is CVE-2020-27652?

CVE-2020-27652 is a high-severity vulnerability in Synology Diskstation Manager, published on 29 Oct 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

Algorithm downgrade vulnerability in QuickConnect in Synology DiskStation Manager (DSM) before 6.2.3-25426-2 allows man-in-the-middle attackers to spoof servers and obtain sensitive information via unspecified vectors.

Weakness: CWE-327

Which versions are affected by CVE-2020-27652?

It affects 2 products.

Products include Synology Diskstation Manager, Synology Skynas Firmware.

How do I fix CVE-2020-27652?

No fix has been published for CVE-2020-27652 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-27652 being exploited?

There is no known exploitation of CVE-2020-27652 in the wild and no public exploit code.

All Synology Diskstation Manager vulnerabilities

Sources

Also known as GHSA-c4cp-hjxc-9m9g.

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