CVE-2026-2439
Concierge::Sessions versions from 0.8.1 before 0.8.5 for Perl generate insecure session ids
概要
Concierge::Sessions versions from 0.8.1 before 0.8.5 for Perl generate insecure session ids
原文の説明
取得元が公開している説明をそのまま載せています (多くは英語)。
Concierge::Sessions versions from 0.8.1 before 0.8.5 for Perl generate insecure session ids. The generate_session_id function in Concierge::Sessions::Base defaults to using the uuidgen command to generate a UUID, with a fallback to using Perl's built-in rand function. Neither of these methods are secure, and attackers are able to guess session_ids that can grant them access to systems. Specifically,
- There is no warning when uuidgen fails. The software can be quietly using the fallback rand() function with no warnings if the command fails for any reason.
- The uuidgen command will generate a time-based UUID if the system does not have a high-quality random number source, because the call does not explicitly specify the --random option. Note that the system time is shared in HTTP responses.
- UUIDs are identifiers whose mere possession grants access, as per RFC 9562.
- The output of the built-in rand() function is predictable and unsuitable for security applications.
参照URL
- advisory github.com
- advisory nvd.nist.gov
- package github.com
- patch github.com
- web cpan.org
- web metacpan.org
- web perldoc.perl.org
- web security.metacpan.org
- web rfc-editor.org