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☎ 03 60 47 09 81 - info@securiteinfo.com
The recv_msg_userauth_request function in svr-auth.c in Dropbear through 2018.76 is prone to a user enumeration vulnerability because username validity affects how fields in SSH_MSG_USERAUTH messages are handled, a similar issue to CVE-2018-15473 in an unrelated codebase.
- http://lists.ucc.gu.uwa.edu.au/pipermail/dropbear/2018q3/002108.html
- https://old.reddit.com/r/blackhat/comments/97ywnm/openssh_username_enumeration/e4e05n2/
- https://github.com/ARPSyndicate/cvemon
- https://github.com/odolezal/silvercrest_zigbee_gateway
- https://github.com/xtaran/dist-detect