Date: Wed, 15 Apr 2015 12:55:53 -0700 From: Tavis Ormandy <taviso@...gle.com> To: Tyler Hicks <tyhicks@...onical.com> Cc: oss-security@...ts.openwall.com, Assign a CVE Identifier <cve-assign@...re.org>, security <security@...ntu.com>, Stéphane Graber <stgraber@...ntu.com> Subject: Re: Re: Problems in automatic crash analysis frameworks On Wed, Apr 15, 2015 at 11:48 AM, Tavis Ormandy <taviso@...gle.com> wrote: > FWIW, I verified this is exploitable. > Here's the script I used to verify, it should create the file /etc/rootfiletest. By using the partial trick or creating parse errors, this is easy to turn into a root shell. Note: I'm a c programmer, I don't know python at all, it's probably the worlds worst python code - I used python because I was reading the python3-lxc code. taviso@...ntu:~/tmp$ ls -l /etc/rootfiletest ls: cannot access /etc/rootfiletest: No such file or directory taviso@...ntu:~/tmp$ rm -rf /tmp/?0* /tmp/exploit/ taviso@...ntu:~/tmp$ python3 test.py taviso@...ntu:~/tmp$ ls -l /etc/rootfiletest -rw-rw---- 1 root root 0 Apr 15 12:53 /etc/rootfiletest Tavis. View attachment "exploit.py" of type "text/x-python" (811 bytes)
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