Impact
A file disclosure vulnerability was discovered in Autolab's remote handin feature, whereby users are able to hand-in assignments using paths outside their submission directory. Users can then view the submission to view the file's contents.
Patches
The vulnerability has been patched in v2.10.0.
Workarounds
Ensure that the field for the remote handin feature is empty (Edit Assessment > Advanced > Remote handin path), and that you are not running Autolab as root (or any user that has write access to /).
Alternatively, disable the remote handin feature if it is unneeded by replacing the body of local_submit in app/controllers/assessment/handin.rb with render(plain: "Feature disabled", status: :bad_request) && return.
References
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If you have any questions or comments about this advisory:
p- Analyst
Impact
A file disclosure vulnerability was discovered in Autolab's remote handin feature, whereby users are able to hand-in assignments using paths outside their submission directory. Users can then view the submission to view the file's contents.
Patches
The vulnerability has been patched in v2.10.0.
Workarounds
Ensure that the field for the remote handin feature is empty (Edit Assessment > Advanced > Remote handin path), and that you are not running Autolab as
root(or any user that has write access to/).Alternatively, disable the remote handin feature if it is unneeded by replacing the body of
local_submitinapp/controllers/assessment/handin.rbwithrender(plain: "Feature disabled", status: :bad_request) && return.References
For more information
If you have any questions or comments about this advisory: