Tuesday, 2016-05-31

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openstackgerritOpenStack Proposal Bot proposed openstack/anchor: Updated from global requirements  https://review.openstack.org/31434702:58
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tmcpeakchair6, sigmavirus24: https://review.openstack.org/#/c/322558/ :\16:56
tmcpeakdo something sigma! :P16:57
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ccneillhttps://github.com/dxa4481/Pastejacking19:00
ccneill:X19:00
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tmcpeakccneill: yeah, saw that.  Definitely undesirable property of JS19:03
ccneillyep19:03
ccneilland the mitigation is "be careful"19:04
ccneillwhich is always super helpful to non-technical people19:04
ccneilllol19:04
tmcpeak"I'd like JS to be able to add things to my clipboard with no user intervention" — said nobody ever19:04
ccneill+119:04
ccneillI mean.. I guess I'm happy that it's not happening in flash?19:04
ccneill¯\_(ツ)_/¯19:04
ccneill https://randywestergren.com/widespread-vulnerable-ads-part-two-flash-edition-facebooks-liverail-akamai-adobe-products-affected/19:04
ccneillthis looks fun too19:04
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tristanCheh, you may also be interested in https://conference.hitb.org/hitbsecconf2016ams/materials/D2T2%20-%20Shangcong%20Luan%20-%20Xen%20Hypervisor%20VM%20Escape.pdf19:16
tmcpeaktristanC: ++19:19
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ccneilltristanC: will definitely have to check that out. this is another one that's been in my nightmares for a while: https://arxiv.org/abs/1507.0695520:03
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tristanCccneill: oh right, we are getting down the rabbit hole now :) But isn't rowhammer mitigated by ecc or bios upgrade ?20:27
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tristanCnote that there isn't much in the hitb slides, but a reminder that hypervisor aren't bug-free20:28
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ccneilltristanC: my understanding is ECC is an effective mitigation, I'm not sure about BIOS upgrades though20:47
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tristanCwell http://googleprojectzero.blogspot.ca/2015/03/exploiting-dram-rowhammer-bug-to-gain.html says so...20:55
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tristanCand ecc may not help according to http://blog.erratasec.com/2015/03/some-notes-on-dram-rowhammer.html20:56
ccneillyeah, that's most of why it haunts my nightmares haha20:56
ccneillit seems to be in a sort of "unresolved" state, where some people are looking into it, but it's not generally appreciated20:57
ccneillGPZ's research was very interesting20:57
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tristanCso... does any of you guys use monitoring probe to check for high rate of cache miss ?21:01
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ccneill<_< probably should..21:05
tristanCwould be nice to know if it's noticable without false positive on a typical openstack compute node21:08
ccneillwonder how widely it's being exploited in the wild21:13
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