CVE-2001-0572

Name: CVE-2001-0572
Creator: NVD / NIST
Published: 2001-08-22T04:00:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 7.03%

Last modified Jun 16, 2026

CVE-2001-0572 is a vulnerability of currently unknown severity. The SSH protocols 1 and 2 (aka SSH-2) as implemented in OpenSSH and other packages have various weaknesses which can allow a remote attacker to obtain the following information via sniffing: (1) password lengths or ranges of lengths, which simplifies brute force password guessing, (2) whether RSA or DSA authentication is being used, (3) the number of authorized_keys in RSA authentication, or (4) the lengths of shell commands.. EPSS estimates a 7.03% chance of exploitation in the next 30 days.

Description

The SSH protocols 1 and 2 (aka SSH-2) as implemented in OpenSSH and other packages have various weaknesses which can allow a remote attacker to obtain the following information via sniffing: (1) password lengths or ranges of lengths, which simplifies brute force password guessing, (2) whether RSA or DSA authentication is being used, (3) the number of authorized_keys in RSA authentication, or (4) the lengths of shell commands.

Metrics

EPSS Probability

7.03%

93.4th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Openbsd	Openssh	4.5
Ssh	Ssh	1.2.24
Ssh	Ssh	1.2.25
Ssh	Ssh	1.2.26
Ssh	Ssh	1.2.27
Ssh	Ssh	1.2.28
Ssh	Ssh	1.2.29
Ssh	Ssh	1.2.30
Ssh	Ssh	1.2.31

References

http://archives.neohapsis.com/archives/bugtraq/2001-03/0225.htmlExploit, Patch, Vendor Advisory
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000391Vendor Advisory
http://www.kb.cert.org/vuls/id/596827US Government Resource
http://www.linux-mandrake.com/en/security/2001/MDKSA-2001-033.php3Patch, Vendor Advisory
http://www.redhat.com/support/errata/RHSA-2001-033.htmlPatch, Vendor Advisory
http://archives.neohapsis.com/archives/bugtraq/2001-03/0225.htmlExploit, Patch, Vendor Advisory
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000391Vendor Advisory
http://www.kb.cert.org/vuls/id/596827US Government Resource
http://www.linux-mandrake.com/en/security/2001/MDKSA-2001-033.php3Patch, Vendor Advisory
http://www.redhat.com/support/errata/RHSA-2001-033.htmlPatch, Vendor Advisory

Timeline

Published: Aug 22, 2001
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2001-0572?

How severe is CVE-2001-0572?

Severity scoring for CVE-2001-0572 is pending analysis. The EPSS model estimates a 7.03% probability of exploitation in the next 30 days.

How do I fix CVE-2001-0572?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST