[Bug 1803441] Re: BASH_CMDS is writable in restricted bash shells (fixed upstream, need to backport patch)
Andrew Zonenberg
azonenberg at drawersteak.com
Wed Mar 27 09:02:16 UTC 2019
@Ricardo: Yes, that was my intent with the original report. I didn't
even know about the other issue when I submitted this issue.
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https://bugs.launchpad.net/bugs/1803441
Title:
BASH_CMDS is writable in restricted bash shells (fixed upstream, need
to backport patch)
Status in bash package in Ubuntu:
New
Bug description:
In 14.04 LTS, the BASH_CMDS variable is writable in rbash. This allows
a trivial escape from rbash to run arbitrary shell commands.
This issue is fixed upstream:
http://git.savannah.gnu.org/cgit/bash.git/tree/CHANGES?h=bash-4.4-testing#n65
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