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Perhaps you’re confusing OLT with ONT? An OLT is a “curbside” distribution node, the ONT is the CPE. The vulnerability is in the distribution node, not the CPE. No provider with any sense exposes their distribution node admin interface to the Internet. <br>
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<div dir="ltr">-mel via cell</div>
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<blockquote type="cite">On Jul 10, 2020, at 1:01 PM, mel@beckman.org wrote:<br>
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<div dir="ltr">The “WAN” port of an OLT _is_ it’s management port. Data, IPTV, and VoIP traffic pass on VLANs, typically encrypted. These are passive optical network (PON) devices, where all CPE in a group of, say, 32 premises receive the same light via an
optical splitter. Thus network partitioning is a requirement of the architecture. There is no concept of a traditional “WAN” port facing the Internet. <br>
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<div dir="ltr">-mel via cell</div>
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<blockquote type="cite">On Jul 10, 2020, at 12:21 PM, Owen DeLong <owen@delong.com> wrote:<br>
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<div class="">Um, from the article it appears that this isn’t on the Management interface, but the WAN port of the OLT.</div>
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<div class="">Owen</div>
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<div class="">On Jul 10, 2020, at 11:01 , Mel Beckman <<a href="mailto:mel@beckman.org" class="">mel@beckman.org</a>> wrote:</div>
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<div dir="auto" class="">But who, who I ask, opens their management interface to the public Internet?!?!
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<div class="">Maybe this is vulnerability if you have a compromised management network, but anybody who opens CPE up to the Internet is just barking mad :-)<br class="">
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<div dir="ltr" class="">-mel via cell</div>
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<blockquote type="cite" class="">On Jul 10, 2020, at 10:00 AM, Owen DeLong <<a href="mailto:owen@delong.com" class="">owen@delong.com</a>> wrote:<br class="">
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<div dir="ltr" class=""> <a href="https://www.zdnet.com/article/backdoor-accounts-discovered-in-29-ftth-devices-from-chinese-vendor-c-data/?ftag=TRE-03-10aaa6b&bhid=29077120342825113007211255328545&mid=12920625&cid=2211510872" class="">
https://www.zdnet.com/article/backdoor-accounts-discovered-in-29-ftth-devices-from-chinese-vendor-c-data/?ftag=TRE-03-10aaa6b&bhid=29077120342825113007211255328545&mid=12920625&cid=2211510872</a>
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<div class="">Wow… Just wow.</div>
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<div class="">Owen</div>
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