NIXPKGS-2026-2338
GitHub issue
published 3 hours ago
Data::Entropy versions before 0.010 for Perl read remote entropy sources over plain HTTP
by @LeSuisse Activity log
- Created suggestion
- @LeSuisse accepted
- @LeSuisse published on GitHub
Data::Entropy versions before 0.010 for Perl read remote entropy sources over plain HTTP
Data::Entropy versions before 0.010 for Perl read remote entropy sources over plain HTTP. The Data::Entropy::RawSource::RandomOrg and Data::Entropy::RawSource::RandomnumbersInfo remote sources are accessed over plain HTTP. The Data::Entropy::RawSource::RandomOrg integrity check trivially matches any non-empty byte string. Any on-path attacker, such as open WiFi, a compromised ISP, captive portal, or a hostile egress proxy substitutes the response and thereby chooses the bytes returned by rand_bits and rand_int for every application that selected one of these sources via with_entropy_source. The _checkbuf method response is equally attacker-controlled, so the retry/sleep behaviour is steerable too.
References
-
https://security.metacpan.org/docs/guides/random-data-for-security.html technical-description
Affected products
Data-Entropy
- <0.010
Matching in nixpkgs
pkgs.perlPackages.DataEntropy
Entropy (randomness) management