CVE-2020-27656 Information disclosure in DiskStation Manager (DSM)
Man-in-the-middle attackers can eavesdrop on cleartext DNSExit authentication credentials transmitted by Synology DSM DDNS services.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-27656?
CVE-2020-27656 is a medium-severity vulnerability in Synology Diskstation Manager, published on 29 Oct 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Cleartext transmission of sensitive information vulnerability in DDNS in Synology DiskStation Manager (DSM) before 6.2.3-25426-2 allows man-in-the-middle attackers to eavesdrop authentication information of DNSExit via unspecified vectors.
Weakness: CWE-319
Which versions are affected by CVE-2020-27656?
It affects 1 product.
Products include Synology Diskstation Manager.
How do I fix CVE-2020-27656?
No fix has been published for CVE-2020-27656 yet. Limit exposure of the affected software until one is available.
Is CVE-2020-27656 being exploited?
There is no known exploitation of CVE-2020-27656 in the wild and no public exploit code.
Other vulnerabilities in Synology Diskstation Manager
Sources
Also known as GHSA-8mf3-6333-x5rm.