As Synology explains in security advisories published two days after the flaws were demoed at Pwn2Own Ireland 2024 to hijack a Synology BeeStation BST150-4T device, the security flaws enable remote attackers to gain remote code execution as root on vulnerable NAS appliances exposed online.
“The vulnerability was initially discovered, within just a few hours, as a replacement for another Pwn2Own submission. The issue was disclosed to Synology immediately after demonstration, and within 48 hours a patch was made available which resolves the vulnerability,” Midnight Blue said.
From a different source:
Synology proactively sponsors and works with security researchers as part of product security initiatives. At this year’s Pwn2Own Ireland 2024 event, which took place in late October, we successfully discovered and resolved multiple security vulnerabilities.
While these vulnerabilities are not being exploited, we recommend all Synology device administrators immediately take action to secure their systems by updating due to the scope and severity of specific issues.
FYI, in case anyone is running 7.2.1, just be aware that you have to MANUALLY update because you need to agree to new terms that removes local hardware processing of some media types.
https://www.synology.com/en-global/releaseNote/DSM
7.2.2-72806 Update 1 is the update with the new patches.
If you’re running Plex locally (i.e. - not in docker) you’ll need to manually install the updated 7.2.2 patch. You need to download it locally, then push it back up to your NAS bypassing the normal process. You can’t use the plex client to prompt the update, and you can’t use the synology package manager to update.
The package links on Reddit and some other sites are older versions that may not install
https://www.plex.tv/media-server-downloads/?cat=nas&plat=synology-dsm72&signUp=0
September 27th, 2024 release is currently the latest non-beta version - v.1.41.1.9057-af5eaea7a
AMD/Intel
https://downloads.plex.tv/plex-media-server-new/1.41.1.9057-af5eaea7a/synology-dsm72/PlexMediaServer-1.41.1.9057-af5eaea7a-x86_64_DSM72.spk
ARMv8
https://downloads.plex.tv/plex-media-server-new/1.41.1.9057-af5eaea7a/synology-dsm72/PlexMediaServer-1.41.1.9057-af5eaea7a-aarch64_DSM72.spk
ARMv7
https://downloads.plex.tv/plex-media-server-new/1.41.1.9057-af5eaea7a/synology-dsm72/PlexMediaServer-1.41.1.9057-af5eaea7a-armv7neon_DSM72.spk
I updated to 7.2.2 this morning and it prompted me to update Plex and then gave a message about what to do if Plex couldn’t see my library. It seems to be ok.
So they’ve just decided that all devices now support HEVC (H.265) and they’ll just disable transcoding? My media centre is on a Pi 3B and that can’t play h265 smoothly. If I had a Synology I’d be pretty annoyed!