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CIRCLE WITH A DOT

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  3. #copyfail

#copyfail

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copyfail
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  • viss@mastodon.socialV This user is from outside of this forum
    viss@mastodon.socialV This user is from outside of this forum
    viss@mastodon.social
    wrote last edited by
    #10

    @elebertus they are absolutely one of them, sure - chuck in some openclaw malicious skills and youre off to the races

    1 Reply Last reply
    0
    • viss@mastodon.socialV viss@mastodon.social

      #copyfail

      just to chime in on the copyfail thing, while, yes, it is a very big deal, the prerequisite is that you have a shell on the box you wish to exploit.

      so keep that in mind when doing risk register stuff.

      attackers will aim for shit like jumpboxes, shared hosting environments, multi-tennancy environments, and places they can get a shell, then move laterally to get you.

      shops doing yolo devops are gonna get targeted, and I wouldnt be surprised to see openclaw malicious skills too

      mustardfacial@infosec.exchangeM This user is from outside of this forum
      mustardfacial@infosec.exchangeM This user is from outside of this forum
      mustardfacial@infosec.exchange
      wrote last edited by
      #11

      @Viss It might also become a big deal for IoT devices that are running linux and give you shell access to a very limited user account for configuration or diagnostic purposes.

      Devices like that rarely get patched.

      viss@mastodon.socialV 1 Reply Last reply
      0
      • viss@mastodon.socialV viss@mastodon.social

        yes, i can help,

        phobos has your back, remember?

        sempf@infosec.exchangeS This user is from outside of this forum
        sempf@infosec.exchangeS This user is from outside of this forum
        sempf@infosec.exchange
        wrote last edited by
        #12

        @Viss SAVE ME VISS!!!

        1 Reply Last reply
        0
        • mustardfacial@infosec.exchangeM mustardfacial@infosec.exchange

          @Viss It might also become a big deal for IoT devices that are running linux and give you shell access to a very limited user account for configuration or diagnostic purposes.

          Devices like that rarely get patched.

          viss@mastodon.socialV This user is from outside of this forum
          viss@mastodon.socialV This user is from outside of this forum
          viss@mastodon.social
          wrote last edited by
          #13

          @Mustardfacial it'll depend entirely on the kernel: https://ubuntu.com/security/CVE-2026-31431

          mustardfacial@infosec.exchangeM 1 Reply Last reply
          0
          • viss@mastodon.socialV viss@mastodon.social

            @Mustardfacial it'll depend entirely on the kernel: https://ubuntu.com/security/CVE-2026-31431

            mustardfacial@infosec.exchangeM This user is from outside of this forum
            mustardfacial@infosec.exchangeM This user is from outside of this forum
            mustardfacial@infosec.exchange
            wrote last edited by
            #14

            @Viss I don’t have enough fingers or toes to count how many vendor-supplied appliances run on Ubuntu.

            But yes, the older IoT devices won’t be affected, but I’ve seen my fair share of them which are not much more than a raspberry pi and a couple of relays

            1 Reply Last reply
            0
            • viss@mastodon.socialV viss@mastodon.social

              yes, i can help,

              phobos has your back, remember?

              viss@mastodon.socialV This user is from outside of this forum
              viss@mastodon.socialV This user is from outside of this forum
              viss@mastodon.social
              wrote last edited by
              #15

              this fixed it for me:

              cat >/etc/modprobe.d/disable-algif-aead.conf <<'EOF'
              install algif_aead /bin/false
              blacklist algif_aead
              EOF

              depmod -a

              rmmod algif_aead

              i tested with this: https://github.com/rootsecdev/cve_2026_31431

              mirabilos@toot.mirbsd.orgM 1 Reply Last reply
              1
              0
              • viss@mastodon.socialV viss@mastodon.social

                #copyfail

                just to chime in on the copyfail thing, while, yes, it is a very big deal, the prerequisite is that you have a shell on the box you wish to exploit.

                so keep that in mind when doing risk register stuff.

                attackers will aim for shit like jumpboxes, shared hosting environments, multi-tennancy environments, and places they can get a shell, then move laterally to get you.

                shops doing yolo devops are gonna get targeted, and I wouldnt be surprised to see openclaw malicious skills too

                rootwyrm@weird.autosR This user is from outside of this forum
                rootwyrm@weird.autosR This user is from outside of this forum
                rootwyrm@weird.autos
                wrote last edited by
                #16

                @Viss so, yeah, about that?

                You actually 100% do not need a shell to exploit. Maybe to gain root, but not necessarily.

                You just need something that calls the crypto API in a way that creates a scatterlist with the broken function.

                Which can be done by literally any program in userland.

                If anyone needs me, I'm going to be chugging bottles of hemlock and strychnine and bleach.

                viss@mastodon.socialV 1 Reply Last reply
                0
                • viss@mastodon.socialV viss@mastodon.social

                  right now, every single remote code vuln that will lead to command injection or rce will make this #copyfail thing a very very big deal.

                  so all those qa servers and staging servers and test boxes you think nobody gives a shit about that are just flapping out there in the public, not being logged, not in the siem, not getting alerted on, not getting patched?

                  all those are gonna catch the "oops attackers overwrote sshd to steal creds" disease.

                  or cryptominers. or proxies.

                  scott@mastodon.clitheroe.caS This user is from outside of this forum
                  scott@mastodon.clitheroe.caS This user is from outside of this forum
                  scott@mastodon.clitheroe.ca
                  wrote last edited by
                  #17

                  @Viss I keep saying at work "it should be considered production the second it's on the network", but it gets shot down because of ... existing PROCESSES. The easy, human, tribal knowledge shit that we could fix with the snap of our fingers and a couple meetings.

                  1 Reply Last reply
                  0
                  • rootwyrm@weird.autosR rootwyrm@weird.autos

                    @Viss so, yeah, about that?

                    You actually 100% do not need a shell to exploit. Maybe to gain root, but not necessarily.

                    You just need something that calls the crypto API in a way that creates a scatterlist with the broken function.

                    Which can be done by literally any program in userland.

                    If anyone needs me, I'm going to be chugging bottles of hemlock and strychnine and bleach.

                    viss@mastodon.socialV This user is from outside of this forum
                    viss@mastodon.socialV This user is from outside of this forum
                    viss@mastodon.social
                    wrote last edited by
                    #18

                    @rootwyrm im sure youre right, and that there will be edge cases where some one-off webhosted thinger or weirdo node app bullshit or custom binary doodad will have some path to trigger this thing - but the most commonly exploited scenario based on what ive seen the last few years in consulting land is gonna be shops with very lax security, shared accounts, injectable automated processing, ci/cd pipelines, and llm craps

                    viss@mastodon.socialV 1 Reply Last reply
                    0
                    • viss@mastodon.socialV viss@mastodon.social

                      @rootwyrm im sure youre right, and that there will be edge cases where some one-off webhosted thinger or weirdo node app bullshit or custom binary doodad will have some path to trigger this thing - but the most commonly exploited scenario based on what ive seen the last few years in consulting land is gonna be shops with very lax security, shared accounts, injectable automated processing, ci/cd pipelines, and llm craps

                      viss@mastodon.socialV This user is from outside of this forum
                      viss@mastodon.socialV This user is from outside of this forum
                      viss@mastodon.social
                      wrote last edited by
                      #19

                      @rootwyrm the nation states are 100% gonna go for those edge cases tho. and its gonna hit shit like fortinets and ciscos and panw and ... hey @cR0w and @da_667 and @reverseics get in here, we're back to ../ again!

                      rootwyrm@weird.autosR 1 Reply Last reply
                      0
                      • viss@mastodon.socialV viss@mastodon.social

                        @rootwyrm the nation states are 100% gonna go for those edge cases tho. and its gonna hit shit like fortinets and ciscos and panw and ... hey @cR0w and @da_667 and @reverseics get in here, we're back to ../ again!

                        rootwyrm@weird.autosR This user is from outside of this forum
                        rootwyrm@weird.autosR This user is from outside of this forum
                        rootwyrm@weird.autos
                        wrote last edited by
                        #20

                        @Viss @cR0w @da_667 @reverseics well yeah, I thought that was kinda obvious when I said basically anything that uses the crypto API could be exploited and www:www still has access to ../../../bin/bash

                        viss@mastodon.socialV 1 Reply Last reply
                        0
                        • rootwyrm@weird.autosR rootwyrm@weird.autos

                          @Viss @cR0w @da_667 @reverseics well yeah, I thought that was kinda obvious when I said basically anything that uses the crypto API could be exploited and www:www still has access to ../../../bin/bash

                          viss@mastodon.socialV This user is from outside of this forum
                          viss@mastodon.socialV This user is from outside of this forum
                          viss@mastodon.social
                          wrote last edited by
                          #21

                          @rootwyrm @cR0w @da_667 @reverseics its amusing that "firewall appliances" are going to have more surfaces exposed to exploit this thing than linux boxes

                          cr0w@infosec.exchangeC paul_ipv6@infosec.exchangeP 2 Replies Last reply
                          0
                          • viss@mastodon.socialV viss@mastodon.social

                            @rootwyrm @cR0w @da_667 @reverseics its amusing that "firewall appliances" are going to have more surfaces exposed to exploit this thing than linux boxes

                            cr0w@infosec.exchangeC This user is from outside of this forum
                            cr0w@infosec.exchangeC This user is from outside of this forum
                            cr0w@infosec.exchange
                            wrote last edited by
                            #22

                            @Viss @rootwyrm @da_667 @reverseics you think it's funny? joker quote

                            viss@mastodon.socialV 1 Reply Last reply
                            0
                            • cr0w@infosec.exchangeC cr0w@infosec.exchange

                              @Viss @rootwyrm @da_667 @reverseics you think it's funny? joker quote

                              viss@mastodon.socialV This user is from outside of this forum
                              viss@mastodon.socialV This user is from outside of this forum
                              viss@mastodon.social
                              wrote last edited by
                              #23

                              @cR0w @rootwyrm @da_667 @reverseics yes

                              da_667@infosec.exchangeD 1 Reply Last reply
                              0
                              • viss@mastodon.socialV viss@mastodon.social

                                @cR0w @rootwyrm @da_667 @reverseics yes

                                da_667@infosec.exchangeD This user is from outside of this forum
                                da_667@infosec.exchangeD This user is from outside of this forum
                                da_667@infosec.exchange
                                wrote last edited by
                                #24

                                @Viss @cR0w @rootwyrm @reverseics and I'm tired of pretending its not

                                1 Reply Last reply
                                0
                                • viss@mastodon.socialV viss@mastodon.social

                                  @rootwyrm @cR0w @da_667 @reverseics its amusing that "firewall appliances" are going to have more surfaces exposed to exploit this thing than linux boxes

                                  paul_ipv6@infosec.exchangeP This user is from outside of this forum
                                  paul_ipv6@infosec.exchangeP This user is from outside of this forum
                                  paul_ipv6@infosec.exchange
                                  wrote last edited by
                                  #25

                                  @Viss @rootwyrm @cR0w @da_667 @reverseics

                                  *what*? perimeter and middleware boxen as platforms to exploite? surely not. they are *security* devices, so they must be more secure!

                                  *choke* *gasp* *cough*

                                  ok. couldn't get that all out with a straight face...

                                  🍿🍿🍿

                                  viss@mastodon.socialV 1 Reply Last reply
                                  0
                                  • viss@mastodon.socialV viss@mastodon.social

                                    right now, every single remote code vuln that will lead to command injection or rce will make this #copyfail thing a very very big deal.

                                    so all those qa servers and staging servers and test boxes you think nobody gives a shit about that are just flapping out there in the public, not being logged, not in the siem, not getting alerted on, not getting patched?

                                    all those are gonna catch the "oops attackers overwrote sshd to steal creds" disease.

                                    or cryptominers. or proxies.

                                    bhhaskin@social.bitsofsimplicity.comB This user is from outside of this forum
                                    bhhaskin@social.bitsofsimplicity.comB This user is from outside of this forum
                                    bhhaskin@social.bitsofsimplicity.com
                                    wrote last edited by
                                    #26

                                    @Viss just think of all the WordPress sites with RCE there where pretty useless up until now.

                                    viss@mastodon.socialV 1 Reply Last reply
                                    0
                                    • viss@mastodon.socialV viss@mastodon.social

                                      this is why ive been on a tear about architectural defensive measures, and adversarial defensive measures.

                                      because when you build shit from the ground up to be defensively positioned at the architecture layer, this shit is way harder to exploit - purely because its way less accessible.

                                      every k8s cluster out there right now with alpine linux rocking kernel 6.7 or whatever is kindling for this thing.

                                      onyxraven@hachyderm.ioO This user is from outside of this forum
                                      onyxraven@hachyderm.ioO This user is from outside of this forum
                                      onyxraven@hachyderm.io
                                      wrote last edited by
                                      #27

                                      @Viss or be ready for supply chain exploits doing this to dependencies or typosquats. Then pushing that into containers. That’s the path I’m concerned about

                                      viss@mastodon.socialV 1 Reply Last reply
                                      0
                                      • onyxraven@hachyderm.ioO onyxraven@hachyderm.io

                                        @Viss or be ready for supply chain exploits doing this to dependencies or typosquats. Then pushing that into containers. That’s the path I’m concerned about

                                        viss@mastodon.socialV This user is from outside of this forum
                                        viss@mastodon.socialV This user is from outside of this forum
                                        viss@mastodon.social
                                        wrote last edited by
                                        #28

                                        @onyxraven there are so many angles on this thing

                                        1 Reply Last reply
                                        0
                                        • bhhaskin@social.bitsofsimplicity.comB bhhaskin@social.bitsofsimplicity.com

                                          @Viss just think of all the WordPress sites with RCE there where pretty useless up until now.

                                          viss@mastodon.socialV This user is from outside of this forum
                                          viss@mastodon.socialV This user is from outside of this forum
                                          viss@mastodon.social
                                          wrote last edited by
                                          #29

                                          @bhhaskin yeah now you can shell the host its on, theeeeeeeen its a party

                                          bhhaskin@social.bitsofsimplicity.comB 1 Reply Last reply
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