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Bug #12463: introduce better, and more secure, file handling abstractions, then use them in our code
Insecure handling of file writes in k5login type
|Assignee:||Dominic Maraglia||% Done:|
|Affected Puppet version:||Branch:||https://github.com/puppetlabs/puppet-cve-test/commits/security/2.6.x/suidmanager-security|
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The k5login type and provider write to an untrusted location, typically a user home direction. They need to be reviewed to make sure they do the right thing around securely handling file replacement; they used to be vulnerable to a symlink attack, and could probably be improved overall.
#1 Updated by Anonymous about 4 years ago
- Branch set to https://github.com/puppetlabs/puppet-cve-test/commits/security/2.6.x/suidmanager-security
https://github.com/puppetlabs/puppet-cve-test/commits/security/2.6.x/suidmanager-security includes an implementation of
replace_file as a helper, and moves from
replace_file in k5login. It also adds testing – any testing – for the type and provider.
This isn’t much of a change compared to the previous change I made, using
secure_open there, but it does make for a more uniform and clear API around behaviour of that type / provider. Needs review, the tests validated, and the code merged.
#4 Updated by Deepak Giridharagopal about 4 years ago
- Assignee changed from Deepak Giridharagopal to Dominic Maraglia