The Multicast DNS (mDNS) responder in Synology DiskStation Manager (DSM) before 3.1 inadvertently responds to unicast queries with source addresses that are not link-local, which allows remote attackers to cause a denial of service (traffic amplification) or obtain potentially sensitive information via port-5353 UDP packets to the Avahi component.

The DS audio (aka com.synology.DSaudio) application 3.4 for Android does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

The DS file (aka com.synology.DSfile) application 4.1.1 for Android does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

The DS photo+ (aka com.synology.dsphoto) application 3.3 for Android does not verify X.509 certificates from SSL servers, which allows man-in-the-middle attackers to spoof servers and obtain sensitive information via a crafted certificate.

Cross-site scripting (XSS) vulnerability in Synology Photo Station 5 for DiskStation Manager (DSM) 3.2-1955 allows remote attackers to inject arbitrary web script or HTML via the name parameter to photo/photo_one.php.

The OpenVPN module in Synology DiskStation Manager (DSM) 4.3-3810 update 1 has a hardcoded root password of synopass, which makes it easier for remote attackers to obtain access via a VPN session.

webman/imageSelector.cgi in Synology DiskStation Manager (DSM) 4.0 before 4.0-2259, 4.2 before 4.2-3243, and 4.3 before 4.3-3810 Update 1 allows remote attackers to append data to arbitrary files, and consequently execute arbitrary code, via a pathname in the SLICEUPLOAD X-TMP-FILE HTTP header.

Multiple directory traversal vulnerabilities in the FileBrowser components in Synology DiskStation Manager (DSM) before 4.3-3810 Update 3 allow remote attackers to read, write, and delete arbitrary files via a .. (dot dot) in the (1) path parameter to file_delete.cgi or (2) folder_path parameter to file_share.cgi in webapi/FileStation/; (3) dlink parameter to fbdownload/; or unspecified parameters to (4) html5_upload.cgi, (5) file_download.cgi, (6) file_sharing.cgi, (7) file_MVCP.cgi, or (8) file_rename.cgi in webapi/FileStation/.

The FTP authentication module in Synology Disk Station 2.x logs passwords to the web application interface in cases of incorrect login attempts, which allows local users to obtain sensitive information by reading a log, a different vulnerability than CVE-2010-2453.

Multiple cross-site scripting (XSS) vulnerabilities in Synology Disk Station 2.x before DSM3.0-1337 allow remote attackers to inject arbitrary web script or HTML by connecting to the FTP server and providing a crafted (1) USER or (2) PASS command, which is written by the FTP logging module to a web-interface log window, related to a "web commands injection" issue.