diff --git a/blog/systemd_insecurity.html b/blog/systemd_insecurity.html index 59b4f8e..2f89bdc 100644 --- a/blog/systemd_insecurity.html +++ b/blog/systemd_insecurity.html @@ -5,142 +5,94 @@ - + - - - Inferencium - Blog - systemd Insecurity - - - - - - - - -

Blog - #1

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-
-
- -

systemd Insecurity

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Posted: 2022-01-29 (UTC+00:00)

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Updated: 2022-11-14 (UTC+00:00)

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-
- - -

Table of Contents

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Anyone who cares about security may want to switch from systemd as soon as possible; its lead - developer doesn't care about your security at all.

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-
- -

Issue #0 - Against CVE Assignment

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"You don't assign CVEs to every single random bugfix we do, do you?"
-

- Lennart Poettering, systemd lead developer

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-

My thoughts:
- Yes, if they're security-related.

-
-

Source:
- systemd GitHub Issue 5998

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-
-
- -

Issue #1 - CVEs Are Not Useful

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"Humpf, I am not convinced this is the right way to announce this. We never did that, and half the - CVEs aren't useful anyway, hence I am not sure we should start with that now, because it is either - inherently incomplete or blesses the nonsensical part of the CVE circus which we really shouldn't - bless..."
-

- Lennart Poettering, systemd lead developer

-
-

My thoughts:
- CVEs are supposed to be for security, and a log of when they were found and their severity, so yes, - it *is* the correct way to announce it. It seems as if over 95 security-concious people think the - same.

-
-

Source:
- systemd GitHub Issue 6225

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-
-
- -

- Issue #2 - Security is a Circus

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-
"I am not sure I buy enough into the security circus to do that though for any minor - issue..."
-

- Lennart Poettering, systemd lead developer

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-

Source:
- systemd GitHub Issue 5144

-
-
-
- -

Issue #3 - Blaming the User

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-
"Yes, as you found out "0day" is not a valid username. I wonder which tool permitted you to create - it in the first place. Note that not permitting numeric first characters is done on purpose: to - avoid ambiguities between numeric UID and textual user names. -
- systemd will validate all configuration data you drop at it, making it hard to generate invalid - configuration. Hence, yes, it's a feature that we don't permit invalid user names, and I'd consider - it a limitation of xinetd that it doesn't refuse an invalid username.
-
- So, yeah, I don't think there's anything to fix in systemd here. I understand this is annoying, but - still: the username is clearly not valid."
-

- Lennart Poettering, systemd lead developer

-
-

My thoughts:
- systemd was the thing that allowed root access just because a username started with a number, then - Poettering blamed the user.

-
-

Source:
- systemd GitHub Issue 6237

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-
- - + + Inferencium - Blog - systemd Insecurity + + + + + + +

Blog - #1

+

systemd Insecurity

+

Posted: 2022-01-29 (UTC+00:00)

+

Updated: 2022-11-14 (UTC+00:00)

+ +
+

Table of Contents

+ +
+

Anyone who cares about security may want to switch from systemd as soon as possible; its lead + developer doesn't care about your security at all.

+
+

Issue #0 - Against CVE Assignment

+
+
"You don't assign CVEs to every single random bugfix we do, do you?"
+

- Lennart Poettering, systemd lead developer

+

My thoughts:
+ Yes, if they're security-related.

+

Source:
+ systemd GitHub Issue 5998

+
+
+

Issue #1 - CVEs Are Not Useful

+
"Humpf, I am not convinced this is the right way to announce this. We never did that, and half the + CVEs aren't useful anyway, hence I am not sure we should start with that now, because it is either + inherently incomplete or blesses the nonsensical part of the CVE circus which we really shouldn't + bless..."
+

- Lennart Poettering, systemd lead developer

+

My thoughts:
+ CVEs are supposed to be for security, and a log of when they were found and their severity, so yes, + it *is* the correct way to announce it. It seems as if over 95 security-concious people think the + same.

+

Source:
+ systemd GitHub Issue 6225

+
+
+

Issue #2 - Security is a Circus

+
"I am not sure I buy enough into the security circus to do that though for any minor + issue..."
+

- Lennart Poettering, systemd lead developer

+

Source:
+ systemd GitHub Issue 5144

+
+
+

Issue #3 - Blaming the User

+
"Yes, as you found out "0day" is not a valid username. I wonder which tool permitted you to create + it in the first place. Note that not permitting numeric first characters is done on purpose: to + avoid ambiguities between numeric UID and textual user names. +
+ systemd will validate all configuration data you drop at it, making it hard to generate invalid + configuration. Hence, yes, it's a feature that we don't permit invalid user names, and I'd consider + it a limitation of xinetd that it doesn't refuse an invalid username.
+
+ So, yeah, I don't think there's anything to fix in systemd here. I understand this is annoying, but + still: the username is clearly not valid."
+

- Lennart Poettering, systemd lead developer

+

My thoughts:
+ systemd was the thing that allowed root access just because a username started with a number, then + Poettering blamed the user.

+

Source:
+ systemd GitHub Issue 6237

+
+