this post was submitted on 06 Jan 2025
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Beim Lesen des zugehörigen Issues zur Signaturproblematik bei F-Droid habe ich den Eindruck, dass das Problem dort entweder nicht verstanden oder heruntergespielt wird. Das ist besorgniserregend. :think_bread:

https://gitlab.com/fdroid/fdroidserver/-/merge_requests/1466

#fdroid #android #security #sicherheit #poc

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[–] [email protected] 0 points 3 weeks ago (1 children)
[–] [email protected] 1 points 3 weeks ago (1 children)

@[email protected] @[email protected] @[email protected] Nein, das wird da genauso dargestellt. Das ursprüngliche Problem wurde durch Änderungen, die die F-Droid-Entwickler selbst gemacht haben behoben, die patches des Entdeckers der Lücke wurden nicht genutzt. Bei den Änderungen von F-Droid selbst gab es bekannte Probleme, die aber keine Sicherheitslücken darstellten. Eine Sicherheitslücke darin wurde erst mit Datum 2024-12-30 gefunden und direkt veröffentlicht. Der Finder selbst sieht den impact aber "lower".

[–] [email protected] 1 points 3 weeks ago (1 children)

@[email protected] @[email protected] @[email protected] Ich interpretiere das anders: "Instead of adopting the fixes we proposed, F-Droid wrote and merged their own patch [10], ignoring repeated warnings it had significant flaws (including an incorrect implementation of v1 signature verification and making it impossible to have APKs with rotated keys in a repository). [...]

[–] [email protected] 1 points 3 weeks ago

@[email protected] @[email protected] @[email protected] Naja, man muss dazu natürlich wissen, dass die "significant flaws" eben keine Sicherheitslücken sind; das wird ja auch nicht behauptet. Es werden halt technisch korrekte APKs als ungültig abgelehnt. Ist ein Problem, sollte man auch beheben, aber ist eben keine Sicherheitslücke.