Unrated severityNVD Advisory· Published Apr 25, 2007· Updated Apr 23, 2026
CVE-2007-2243
CVE-2007-2243
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.
Affected products
62cpe:2.3:a:openbsd:openssh:1.2:*:*:*:*:*:*:*+ 61 more
- 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:1.2.27:*:*:*:*:*:*:*
- cpe:2.3:a:openbsd:openssh:1.2.3:*:*:*:*:*:*:*
- 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:*:*:*:*:*:*:*
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
7- lists.grok.org.uk/pipermail/full-disclosure/2007-April/053906.htmlnvd
- lists.grok.org.uk/pipermail/full-disclosure/2007-April/053951.htmlnvd
- securityreason.com/securityalert/2631nvd
- www.osvdb.org/34600nvd
- www.securityfocus.com/bid/23601nvd
- exchange.xforce.ibmcloud.com/vulnerabilities/33794nvd
- security.netapp.com/advisory/ntap-20191107-0003/nvd
News mentions
0No linked articles in our index yet.