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CVE-2007-2243

Date: April 25, 2007

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.

Severity Score

Related Resources (10)

https://nvd.nist.gov/vuln/detail/CVE-2007-2243
http://securityreason.com/securityalert/2631
http://www.securityfocus.com/bid/23601
http://www.osvdb.org/34600
https://security.netapp.com/advisory/ntap-20191107-0003/
https://security-tracker.debian.org/tracker/CVE-2007-2243
http://lists.grok.org.uk/pipermail/full-disclosure/2007-April/053906.html
https://exchange.xforce.ibmcloud.com/vulnerabilities/33794
http://lists.grok.org.uk/pipermail/full-disclosure/2007-April/053951.html
https://www.mend.io/vulnerability-database/CVE-2007-2243

Severity Score

Weakness Type (CWE)

Authentication Issues

CWE-287

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): LOW
Integrity (I): NONE
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): NONE
Availability (A): NONE
Additional information:

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