CVE-2016-1561

ExaGrid appliances with firmware before 4.8 P26 have a default SSH public key in the authorized_keys file for root, which allows remote attackers to obtain SSH access by leveraging knowledge of a private key from another installation or a firmware image.

• CWE-200

• http://packetstormsecurity.com/files/136634/ExaGrid-Known-SSH-Key-Default-Password.htmlExploit, Third Party Advisory, VDB Entry
• http://www.rapid7.com/db/modules/exploit/linux/ssh/exagrid_known_privkeyThird Party Advisory
• https://community.rapid7.com/community/infosec/blog/2016/04/07/r7-2016-04-exagrid-backdoor-ssh-keys-and-hardcoded-credentialsExploit, Mitigation, Third Party Advisory
• http://packetstormsecurity.com/files/136634/ExaGrid-Known-SSH-Key-Default-Password.htmlExploit, Third Party Advisory, VDB Entry
• http://www.rapid7.com/db/modules/exploit/linux/ssh/exagrid_known_privkeyThird Party Advisory
• https://community.rapid7.com/community/infosec/blog/2016/04/07/r7-2016-04-exagrid-backdoor-ssh-keys-and-hardcoded-credentialsExploit, Mitigation, Third Party Advisory

Published

Apr 21, 2017

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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