All vulnerabilities

Servers and applications

CVE-2001-1585

SSH protocol 2 (aka SSH-2) public key authentication in the development snapshot of OpenSSH 2.3.1, available from 2001-01-18 through 2001-02-08, does not perform a challenge-response step to ensure that the client has the proper private key, which allows remote attackers to bypass authentication as other users by supplying a public key from that user's authorized_keys file.

Severity
Medium 6.8
Published
31 Dec 2001
Last changed
16 Jun 2026
Added to UpHeron
21 Oct 2026
Exploit chance
1.9% in the next 30 daysHigher than 80% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Improper authentication (CWE-287)
Attack
Over the network · No login needed
Attacker can
Read some data · Change some data · Slow it down
CVSS vector
AV:N/AC:M/Au:N/C:P/I:P/A:P
Sources
NVD

Affected software

SoftwareAffected versions
OpenSSHServers and applications · cpe:a:openbsd:openssh
  • Version 2.3.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2001-1585
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2001-1585