Code signing issue in Mac server

Plex Media Server Desktops & Laptops
1

Server Version#: 1.2.6.0.5715

Today, I downloaded Plex Media Server for the first time. On unzipping the file and double-clicking the app, I get a code-signing error: “Plex Media Server.app” can’t be opened because the identity of the developer cannot be confirmed.

(I know how I can bypass the error, but don’t like doing that and wanted to flag the problem to the developers.)

I’m on Mojave (10.14.6). I checked the SHA sum of the zip that I downloaded, and it matches what’s on the page (17c326fe66afa65cb70c645b432805a59481a3f3).

2

As a long time Plex subscriber, I can assure you it is safe to accept ALLOW from the Gatekeeper in System preferences in this case. As long as you downloaded Plex from.

3

That’s really interesting and weird, because the app is codesigned by Plex. I wonder if it has anything to do with the no-longer-supported-by-Apple version of the OS?

I assume you’ve already got Security set to “App Store & Identified Developers”, or whatever the verbiage is.

Can you post the output from this?

codesign -dv --verbose=4 "/Applications/Plex Media Server.app"

Here’s mine:

Executable=/Users/[blah]/Downloads/Plex Media Server.app/Contents/MacOS/Plex Media Server
Identifier=com.plexapp.plexmediaserver
Format=app bundle with Mach-O thin (x86_64)
CodeDirectory v=20500 size=131207 flags=0x10000(runtime) hashes=4093+3 location=embedded
VersionPlatform=1
VersionMin=657664
VersionSDK=721152
Hash type=sha256 size=32
CandidateCDHash sha1=61b79a44d8abc586e15b39b2347367e1f9a806dc
CandidateCDHashFull sha1=61b79a44d8abc586e15b39b2347367e1f9a806dc
CandidateCDHash sha256=cb706729f436feb3b3ecdaa874f890cdfbbd5109
CandidateCDHashFull sha256=cb706729f436feb3b3ecdaa874f890cdfbbd5109aad47123fceb25aa91dcd354
Hash choices=sha1,sha256
CMSDigest=199289861154b7b13bc5efeb3721158684aef93fdc82eaee2450f1ba84f2f559
CMSDigestType=2
Executable Segment base=0
Executable Segment limit=15810560
Executable Segment flags=0x1
Page size=4096
CDHash=cb706729f436feb3b3ecdaa874f890cdfbbd5109
Signature size=9050
Authority=Developer ID Application: Plex Inc. (K4QJ56KR4A)
Authority=Developer ID Certification Authority
Authority=Apple Root CA
Timestamp=Apr 4, 2022 at 10:48:53 AM
Info.plist entries=19
TeamIdentifier=K4QJ56KR4A
Runtime Version=11.1.0
Sealed Resources version=2 rules=13 files=2197
Internal requirements count=1 size=220
4

Weirdly, the codesign tool seems to indicate no problems. Yes, the security setting is to allow signed apps. Along with codesign and spctl, I checked system.log and found no relevant errors. Could be the old OS, though this is the first time I’ve encountered this problem (and I’ve downloaded many an application before). I suppose I’ll just chalk it up to OS weirdness and bypass Gatekeeper…

5

Oddddd.

I’d love to know more if you ever happen to figure it out.

Why the old os - ancient hackintosh?

6

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