Finding ID | Version | Rule ID | IA Controls | Severity |
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V-239547 | VROM-SL-000640 | SV-239547r662092_rule | Medium |
Description |
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6to4 is an IPv6 transition mechanism that involves tunneling IPv6 packets encapsulated in IPv4 packets on an ad hoc basis. This is not a preferred transition strategy and increases the attack surface of SLES for vRealize. |
STIG | Date |
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VMware vRealize Operations Manager 6.x SLES Security Technical Implementation Guide | 2021-07-01 |
Check Text ( C-42780r662090_chk ) |
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Check SLES for vRealize for any active "6to4" tunnels without specific remote addresses: # ip tun list | grep "remote any" | grep "ipv6/ip" If any results are returned the "tunnel" is the first field. If any results are returned, this is a finding. |
Fix Text (F-42739r662091_fix) |
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Disable the active "6to4" tunnel: # ip link set Add this command to a startup script, or remove the configuration creating the tunnel. |