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But the filtering requirements are going to be different for different
front ends, and we can't hope to catch them all. Trying to do any filtering
at the cinder/nova API level just provides a false sense of security -
horizon and other UI *have* to get their escaping right. If you put
incomplete filtering at the cinder level, it becomes more likely that
consumers will assume they don't need to bother.

On 20 Nov 2017 2:18 am, "TommyLike Hu" <tommylikehu at gmail.com> wrote:

> Our API service is open to any client or any API consumer. We can not
> guarantee every frontend has the ability to protect themself from script
> injections. Although the specific cases would differ, the security issue is
> the same. If we have to keep asking them to add this support repeatedly,
> Can we just define the BASIC limitation for the input?
>
> Tristan Cacqueray <tdecacqu at redhat.com>于2017年11月17日周五 下午11:55写道：
>
>> On November 17, 2017 1:56 pm, Jeremy Stanley wrote:
>> > On 2017-11-17 12:47:34 +0000 (+0000), Luke Hinds wrote:
>> >> This will need the VMT's attention, so please raise as an issue on
>> >> launchpad and we can tag it as for the vmt members as a possible OSSA.
>> > [...]
>> >
>> > Ugh, looks like someone split this thread, and I already replied to
>> > the original thread. In short, I don't think it's safe to assume we
>> > know what's going to be safe for different frontends and consuming
>> > applications, so trying to play whack-a-mole with various unsafe
>> > sequences at the API side puts the responsibility for safe filtering
>> > in the wrong place and can lead to lax measures in the software
>> > which should actually be taking on that responsibility.
>> >
>> > Of course, I'm just one voice. Others on the VMT certainly might
>> > disagree with my opinion on this.
>>
>> We had similar issues[0][1] in the past where we already draw the line
>> that it is the client responsibility to filter out API response.
>>
>> Thus I agree with Jeremy, perhaps it is not ideal, but at least it
>> doesn't give a false sense of security if^Wwhen the server side
>> filtering let unpredicted malicious content through.
>>
>> -Tristan
>>
>> [0] https://launchpad.net/bugs/1486565
>> [1] https://launchpad.net/bugs/1649248
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