yahoo-eng-team team mailing list archive

[Brandon Checketts <1541196@xxxxxxxxxxxxxxxxxx>]

Public bug reported:

It seems that both /var/log/cloud-init.log and /var/log/cloud-init-
output.log files are created with the files as publicly readable
(specifically 0644 file permissions)

```
brandon@:~$ ls -al /var/log/cloud-init*
-rw-r--r-- 1 syslog adm  1060887 Jan 26 05:23 /var/log/cloud-init.log
-rw-r--r-- 1 root   root   18666 Jan 26 05:23 /var/log/cloud-init-output.log
```
Are there concerns with these being publicly readable?  I don't have any specific examples of confidential information that may be exposed via these logs, but wouldn't it seem prudent to limit file permissions in case there was some unintended secrets output from another application or user-defined scripts that are run via cloudinit?

** Affects: cloud-init
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1541196

Title:
  Limit file permissions on /var/log/cloud-init.log

Status in cloud-init:
  New

Bug description:
  It seems that both /var/log/cloud-init.log and /var/log/cloud-init-
  output.log files are created with the files as publicly readable
  (specifically 0644 file permissions)

  ```
  brandon@:~$ ls -al /var/log/cloud-init*
  -rw-r--r-- 1 syslog adm  1060887 Jan 26 05:23 /var/log/cloud-init.log
  -rw-r--r-- 1 root   root   18666 Jan 26 05:23 /var/log/cloud-init-output.log
  ```
  Are there concerns with these being publicly readable?  I don't have any specific examples of confidential information that may be exposed via these logs, but wouldn't it seem prudent to limit file permissions in case there was some unintended secrets output from another application or user-defined scripts that are run via cloudinit?

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