8.5high

CVE-2017-5243

The default SSH configuration in Rapid7 Nexpose hardware appliances shipped before June 2017 does not specify desired algorithms for key ex…

Published 9 y ago · modified 4 mo ago · JSON

CVSS
8.5
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
0.5%
percentile 43%
Public exploits
0
none known

Summary

The default SSH configuration in Rapid7 Nexpose hardware appliances shipped before June 2017 does not specify desired algorithms for key exchange and other important functions. As a result, it falls back to allowing ALL algorithms supported by the relevant version of OpenSSH and makes the installations vulnerable to a range of MITM, downgrade, and decryption attacks.

Exploit prediction (EPSS)

0.51% probability of exploitation in the next 30 days, higher than 43% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.08.5CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
NVD2.06.8AV:N/AC:M/Au:N/C:P/I:P/A:P

Affected products

  • Rapid7 Nexpose hardware appliance

Classification

Weakness
  • CWE-327 Use of a Broken or Risky Cryptographic Algorithm

References

  • community.rapid7.com /community/nexpose/blog/2017/05/31/r7-2017-13-nexpose-hardware-appliance-ssh-enabled-obsol · x_refsource_CONFIRM, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.