CVE-2016-1561

Severity: high (CVSS 7.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 74.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2017-04-21 · updated 2026-06-17
Weakness: CWE-200

Description

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.

Affected products

Exagrid Ex10000E Firmware: 4.8
Exagrid Ex13000E Firmware: 4.8
Exagrid Ex21000E Firmware: 4.8
Exagrid Ex3000 Firmware: 4.8
Exagrid Ex32000E Firmware: 4.8
Exagrid Ex40000E Firmware: 4.8
Exagrid Ex5000 Firmware: 4.8
Exagrid Ex7000 Firmware: 4.8

References

http://packetstormsecurity.com/files/136634/ExaGrid-Known-SSH-Key-Default-Password.html
http://www.rapid7.com/db/modules/exploit/linux/ssh/exagrid_known_privkey
https://community.rapid7.com/community/infosec/blog/2016/04/07/r7-2016-04-exagrid-backdoor-ssh-keys-and-hardcoded-credentials
http://packetstormsecurity.com/files/136634/ExaGrid-Known-SSH-Key-Default-Password.html
http://www.rapid7.com/db/modules/exploit/linux/ssh/exagrid_known_privkey
https://community.rapid7.com/community/infosec/blog/2016/04/07/r7-2016-04-exagrid-backdoor-ssh-keys-and-hardcoded-credentials

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