CVE-2001-0572

Severity

75%

Complexity

99%

Confidentiality

106%

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.

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.

CVSS 2.0 Base Score 7.5. CVSS Attack Vector: network. CVSS Attack Complexity: low. CVSS Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P).

Overview

First reported 23 years ago

2001-08-22 04:00:00

Last updated 16 years ago

2008-09-05 20:24:00

Affected Software

OpenBSD OpenSSH 4.5

4.5

SSH Communications Security SSH daemon 1.2.24

1.2.24

SSH Communications Security SSH daemon 1.2.25

1.2.25

SSH Communications Security SSH daemon 1.2.26

1.2.26

SSH Communications Security SSH daemon 1.2.27

1.2.27

SSH Communications Security SSH daemon 1.2.28

1.2.28

SSH Communications Security SSH daemon 1.2.29

1.2.29

SSH Communications Security SSH daemon 1.2.30

1.2.30

SSH Communications Security SSH daemon 1.2.31

1.2.31

References

20010318 Passive Analysis of SSH (Secure Shell) Traffic

Exploit, Patch, Vendor Advisory

CLA-2001:391

Vendor Advisory

VU#596827

US Government Resource

MDKSA-2001:033

Patch, Vendor Advisory

RHSA-2001:033

Patch, Vendor Advisory

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