2022-12-20 02:19:21 +00:00
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<!-- Inferencium - Website - Blog - #1 -->
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2023-11-19 19:37:09 +00:00
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2022-12-20 02:19:21 +00:00
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2023-05-19 06:04:03 +01:00
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<!-- Copyright 2022 Jake Winters -->
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2022-12-20 02:19:21 +00:00
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2023-11-16 16:01:42 +00:00
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2023-06-23 00:35:16 +01:00
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<title>Inferencium - Blog - systemd Insecurity</title>
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2023-06-23 00:35:16 +01:00
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2023-11-16 16:42:54 +00:00
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2023-11-16 15:02:24 +00:00
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2023-10-30 23:11:20 +00:00
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2023-11-16 15:19:34 +00:00
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2023-06-23 00:35:16 +01:00
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<h1>Blog - #1</h1>
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<h2>systemd Insecurity</h2>
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<p class="update_date">Posted: 2022-01-29 (UTC+00:00)</p>
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2023-11-14 19:25:20 +00:00
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<p class="update_date">Updated: 2023-10-31 (UTC+00:00)</p>
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2023-11-16 15:52:59 +00:00
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<nav id="toc">
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2023-09-02 14:22:13 +01:00
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<h2 id="toc"><a href="#toc">Table of Contents<a/></h2>
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<ul>
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2023-10-31 02:28:35 +00:00
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<li><a href="#issue-0">Issue #0 - Against CVE Assignment</a></li>
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<li><a href="#issue-1">Issue #1 - CVEs Are Not Useful</a></li>
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<li><a href="#issue-2">Issue #2 - Security is a Circus</a></li>
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<li><a href="#issue-3">Issue #3 - Blaming the User</a></li>
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</ul>
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2023-11-16 15:52:59 +00:00
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</nav>
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2023-10-31 02:51:29 +00:00
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<p>Anyone who cares about security may want to switch from systemd as soon as possible;
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its lead developer doesn't care about your security at all.</p>
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2023-10-31 02:28:35 +00:00
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<section id="issue-0">
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<h2 id="issue-0"><a href="#issue-0">Issue #0 - Against CVE Assignment</a></h2>
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2023-10-31 02:51:29 +00:00
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<blockquote>"You don't assign CVEs to every single random bugfix we do, do
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you?"</blockquote>
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<p>- Lennart Poettering, systemd lead developer</p>
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2023-10-31 02:57:38 +00:00
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<p><b>My thoughts:</b> Yes, if they're security-related.</p>
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<p>Source:
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<a href="https://github.com/systemd/systemd/pull/5998#issuecomment-303782334">systemd GitHub Issue 5998</a></p>
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</section>
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<section id="issue-1">
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<h2 id="issue-1"><a href="#issue-1">Issue #1 - CVEs Are Not Useful</a></h2>
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2023-10-31 02:51:29 +00:00
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<blockquote>"Humpf, I am not convinced this is the right way to announce this.
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We never did that, and half the CVEs aren't useful anyway, hence I am not sure
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we should start with that now, because it is either inherently incomplete or
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blesses the nonsensical part of the CVE circus which we really shouldn't
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bless..."</blockquote>
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<p>- Lennart Poettering, systemd lead developer</p>
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2023-10-31 02:57:38 +00:00
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<p><b>My thoughts:</b> CVEs are supposed to be for security, and a log of when they
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2023-10-31 02:54:52 +00:00
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were found and their severity, so yes, it <em>is</em> the correct way to
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announce it. It seems as if over 95 security-concious people think the same.</p>
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<p>Source:
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<a href="https://github.com/systemd/systemd/pull/6225#issuecomment-311739869">systemd GitHub Issue 6225</a></p>
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</section>
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<section id="issue-2">
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<h2 id="issue-2"><a href="#issue-2">Issue #2 - Security is a Circus</a></h2>
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2023-10-31 02:51:29 +00:00
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<blockquote>"I am not sure I buy enough into the security circus to do that
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though for any minor issue..."</blockquote>
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<p>- Lennart Poettering, systemd lead developer</p>
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2023-10-31 02:51:29 +00:00
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<p>Source:
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<a href="https://github.com/systemd/systemd/issues/5144#issuecomment-276740654">systemd GitHub Issue 5144</a></p>
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</section>
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<section id="issue-3">
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<h2 id="issue-3"><a href="#issue-3">Issue #3 - Blaming the User</a></h2>
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2023-10-31 02:51:29 +00:00
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<blockquote>"Yes, as you found out "0day" is not a valid username. I wonder
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which tool permitted you to create it in the first place. Note that not
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permitting numeric first characters is done on purpose: to avoid ambiguities
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between numeric UID and textual user names.<br>
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<br>
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systemd will validate all configuration data you drop at it, making it hard to
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generate invalid configuration. Hence, yes, it's a feature that we don't permit
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invalid user names, and I'd consider it a limitation of xinetd that it doesn't
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refuse an invalid username.<br>
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<br>
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So, yeah, I don't think there's anything to fix in systemd here. I understand
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this is annoying, but still: the username is clearly not valid."</blockquote>
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2023-06-23 18:29:16 +01:00
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<p>- Lennart Poettering, systemd lead developer</p>
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2023-10-31 02:57:38 +00:00
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<p><b>My thoughts:</b> systemd was the thing that allowed root access just because a
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2023-10-31 02:51:29 +00:00
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username started with a number, then Poettering blamed the user.</p>
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<p>Source:
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<a href="https://github.com/systemd/systemd/issues/6237#issuecomment-311900864">systemd GitHub Issue 6237</a></p>
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</section>
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2023-06-23 00:35:16 +01:00
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2022-12-20 02:19:21 +00:00
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