The New Oil<p><a href="https://mastodon.thenewoil.org/tags/Cisco" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Cisco</span></a> <a href="https://mastodon.thenewoil.org/tags/IOSXR" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>IOSXR</span></a> vulnerability lets attackers crash <a href="https://mastodon.thenewoil.org/tags/BGP" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BGP</span></a> on routers</p><p><a href="https://www.bleepingcomputer.com/news/security/cisco-vulnerability-lets-attackers-crash-bgp-on-ios-xr-routers/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">bleepingcomputer.com/news/secu</span><span class="invisible">rity/cisco-vulnerability-lets-attackers-crash-bgp-on-ios-xr-routers/</span></a></p><p><a href="https://mastodon.thenewoil.org/tags/cybersecurity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>cybersecurity</span></a></p>
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#IOSXR
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:atari: :neovim: :terminal:<p>Continuing with my <a href="https://fosstodon.org/tags/pyats" class="mention hashtag" rel="tag">#<span>pyats</span></a> journey. <a href="https://fosstodon.org/tags/IPSLA" class="mention hashtag" rel="tag">#<span>IPSLA</span></a> on <a href="https://fosstodon.org/tags/IOSXR" class="mention hashtag" rel="tag">#<span>IOSXR</span></a> is on today's todo list.</p>
Łukasz Bromirski :unverified:<p>Annual reminder: I'm running various free projects for networking community - BGP feeds with bogons, FlowSpec, geo information for country filtering, full IPv4/IPv6 global table, RPKI RSes and AS112 sinkholes. All documented here: <a href="https://lukasz.bromirski.net/projects/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">lukasz.bromirski.net/projects/</span><span class="invisible"></span></a> <a href="https://infosec.exchange/tags/bgp" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>bgp</span></a> <a href="https://infosec.exchange/tags/as112" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>as112</span></a> <a href="https://infosec.exchange/tags/anycast" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>anycast</span></a> <a href="https://infosec.exchange/tags/freebsd" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>freebsd</span></a> <a href="https://infosec.exchange/tags/iosxr" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>iosxr</span></a> <a href="https://infosec.exchange/tags/xrv9000" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>xrv9000</span></a> <a href="https://infosec.exchange/tags/pushdastuff" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>pushdastuff</span></a></p>
Łukasz Bromirski :unverified:<p>Even seasoned network engineers can make mistakes. Mistakes are good, they make us learn things and remind we should stay humble. And if you waste hours troubleshooting... you write a post ;) <a href="https://lukasz.bromirski.net/post/xr-route-internal/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">lukasz.bromirski.net/post/xr-r</span><span class="invisible">oute-internal/</span></a> <a href="https://infosec.exchange/tags/iosxr" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>iosxr</span></a> <a href="https://infosec.exchange/tags/routing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>routing</span></a></p>
Łukasz Bromirski :unverified:<p>Doing geoblocking is generally doing 'security by building false sense of it'. However, sometimes somebody forces you to do it anyway. If you know what you're doing, take a look here - any feedback on this is great! <a href="https://lukasz.bromirski.net/bgp-geo-blackholing/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">lukasz.bromirski.net/bgp-geo-b</span><span class="invisible">lackholing/</span></a> <a href="https://infosec.exchange/tags/bgp" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>bgp</span></a> <a href="https://infosec.exchange/tags/geoblocking" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>geoblocking</span></a> <a href="https://infosec.exchange/tags/iosxr" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>iosxr</span></a> <a href="https://infosec.exchange/tags/pushdastuff" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>pushdastuff</span></a></p>
Łukasz Bromirski :unverified:<p>If You want to experiment with BGP FlowSpec on your router, there's alpha version of my BGP Blackholing FlowSpec server at 85.232.240.180 & 2001:1a68:2c:2::180. You'll get 1345 IPv4 FlowSpec AF prefixes and 45 in IPv6 FlowSpec AF. The rest of configuration is the same as in main project: <a href="https://lukasz.bromirski.net/bgp-blackholing/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">lukasz.bromirski.net/bgp-black</span><span class="invisible">holing/</span></a> Please ping me directly and share your feedback (with your platform details if possible - thanks!) <a href="https://infosec.exchange/tags/iosxr" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>iosxr</span></a> <a href="https://infosec.exchange/tags/pushdastuff" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>pushdastuff</span></a> <a href="https://infosec.exchange/tags/bgp" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>bgp</span></a> <a href="https://infosec.exchange/tags/blackholing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>blackholing</span></a></p>
Łukasz Bromirski :unverified:<p>You *may* have noticed small disturbance of the force with regards to BGP Full Feed and BGP Blackholing projects. That's because over last two nights I migrated all infra to... this ;) <a href="https://infosec.exchange/tags/iosxr" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>iosxr</span></a> <a href="https://infosec.exchange/tags/xrv9000" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>xrv9000</span></a> <a href="https://infosec.exchange/tags/pushdastuff" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>pushdastuff</span></a></p>
Łukasz Bromirski :unverified:<p>Logging to IOS XR using SSH keys - 7.0+ edition howto: lukasz.bromirski.net/post/ios-xr-au… <a href="https://infosec.exchange/tags/iosxr" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>iosxr</span></a> <a href="https://infosec.exchange/tags/ssh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ssh</span></a> <a href="https://infosec.exchange/tags/openssh" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>openssh</span></a> <a href="https://infosec.exchange/tags/hardening" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>hardening</span></a> <a href="https://infosec.exchange/tags/security" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>security</span></a> <a href="https://infosec.exchange/tags/pushdastuff" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>pushdastuff</span></a></p>
Łukasz Bromirski :unverified:<p>I decided to upgrade my home internet router before Easter while visiting local PC shop. Seller gave me that. I'm not sure if it supports WPA3 or UPnP though... ;) <a href="https://infosec.exchange/tags/iosxr" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>iosxr</span></a> <a href="https://infosec.exchange/tags/cisconcs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>cisconcs</span></a> <a href="https://infosec.exchange/tags/100ge" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>100ge</span></a> <a href="https://infosec.exchange/tags/400ge" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>400ge</span></a></p>
heise online (inoffiziell)Es gibt wichtige Sicherheitsupdates für Ciscos Netzwerkbetriebssystem IOS XR. Keine der Lücken gilt als kritisch. <br><a href="https://www.heise.de/news/Angreifer-koennten-Cisco-Router-mit-IOS-XR-Software-lahmlegen-6188776.html" rel="nofollow noopener noreferrer" target="_blank">Angreifer könnten Cisco-Router mit IOS XR Software lahmlegen</a><br>
heise online (inoffiziell)Admins sollten professionelle Router von Cisco aus Sicherheitsgründe auf den aktuellen Stand bringen. Angreifer nutzen die Lücken derzeit aus.<br><a href="https://www.heise.de/news/Jetzt-patchen-Cisco-liefert-Sicherheitsupdates-fuer-Router-nach-4916417.html" rel="nofollow noopener noreferrer" target="_blank">Jetzt patchen! Cisco liefert Sicherheitsupdates für Router nach</a><br>
heise online (inoffiziell)Cisco hat Sicherheitsupdates für unter anderem Jabber, IOS XR und Webex Meetings veröffentlicht.<br><a href="https://www.heise.de/security/meldung/Sicherheitsupdates-Cisco-Jabber-praeparierte-Nachricht-Schadcode-4884609.html" rel="nofollow noopener noreferrer" target="_blank">Cisco Sicherheitsupdates: Jabber + präparierte Nachricht = Schadcode</a><br><a href="https://squeet.me/search?tag=Cisco" rel="nofollow noopener noreferrer" target="_blank">#Cisco</a> <a href="https://squeet.me/search?tag=IOSXR" rel="nofollow noopener noreferrer" target="_blank">#IOSXR</a> <a href="https://squeet.me/search?tag=Jabber" rel="nofollow noopener noreferrer" target="_blank">#Jabber</a> <a href="https://squeet.me/search?tag=Patchday" rel="nofollow noopener noreferrer" target="_blank">#Patchday</a> <a href="https://squeet.me/search?tag=Sicherheitsl%C3%BCcken" rel="nofollow noopener noreferrer" target="_blank">#Sicherheitslücken</a> <a href="https://squeet.me/search?tag=Updates" rel="nofollow noopener noreferrer" target="_blank">#Updates</a> <a href="https://squeet.me/search?tag=WebexMeetings" rel="nofollow noopener noreferrer" target="_blank">#WebexMeetings</a>
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