CVE-2007-2243

medium
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

Description

OpenSSH 4.6 and earlier, when ChallengeResponseAuthentication is enabled, allows remote attackers to determine the existence of user accounts by attempting to authenticate via S/KEY, which displays a different response if the user account exists, a similar issue to CVE-2001-1483.

References

http://lists.grok.org.uk/pipermail/full-disclosure/2007-April/053906.html

http://lists.grok.org.uk/pipermail/full-disclosure/2007-April/053951.html

http://securityreason.com/securityalert/2631

http://www.osvdb.org/34600

http://www.securityfocus.com/bid/23601

https://exchange.xforce.ibmcloud.com/vulnerabilities/33794

Details

Source: MITRE

Published: 2007-04-25

Updated: 2017-07-29

Type: CWE-287

Risk Information

CVSS v2

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

Vulnerable Software

Configuration 1

OR

cpe:2.3:a:openbsd:openssh:1.2:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:1.2.1:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:1.2.2:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:1.2.3:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:1.2.27:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:2.1:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:2.1.1:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:2.2:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:2.3:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:2.5:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:2.5.1:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:2.5.2:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:2.9:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:2.9.9:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:2.9.9p2:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:2.9p1:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:2.9p2:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:3.0:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:3.0.1:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:3.0.1p1:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:3.0.2:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:3.0.2p1:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:3.0p1:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:3.1:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:3.1p1:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:3.2:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:3.2.2:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:3.2.2p1:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:3.2.3p1:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:3.3:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:3.3p1:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:3.4:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:3.4p1:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:3.5:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:3.5p1:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:3.6:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:3.6.1:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:3.6.1p1:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:3.6.1p2:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:3.7:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:3.7.1:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:3.7.1p1:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:3.7.1p2:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:3.8:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:3.8.1:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:3.8.1p1:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:3.9:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:3.9.1:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:3.9.1p1:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:4.0:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:4.0p1:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:4.1:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:4.1p1:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:4.2:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:4.2p1:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:4.3:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:4.3p1:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:4.3p2:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:4.4:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:4.4p1:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:4.5:*:*:*:*:*:*:*

cpe:2.3:a:openbsd:openssh:4.6:*:*:*:*:*:*:*

Tenable Plugins

View all (4 total)

IDNameProductFamilySeverity
17704OpenSSH S/KEY Authentication Account EnumerationNessusMisc.
medium
44078OpenSSH < 4.7 Trusted X11 Cookie Connection Policy BypassNessusMisc.
high
55992SunSSH < 1.1.1 / 1.3 CBC Plaintext DisclosureNessusMisc.
critical
4209OpenSSH < 4.7 Trusted X11 Cookie Connection Policy BypassNessus Network MonitorSSH
high