Cleartext transmission of sensitive information in DiskStation Manager (DSM) - CVE-2021-26565
Published: April 20, 2021
Vulnerability identifier: #VU52353
CSH Severity: Medium
CVSS v4: 5.9 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-26565
CWE-ID: CWE-319
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to software uses insecure communication channel to transmit sensitive information in synorelayd. A remote attacker can perform a man-in-the-middle attack to obtain sensitive information via an HTTP session.
Affected software
DiskStation Manager (DSM)
How to mitigate CVE-2021-26565
Install updates from vendor's website.
DiskStation Manager (DSM) - update to 6.2.3-25426-3