CVE-2003-0190

Current Description

OpenSSH-portable (OpenSSH) 3.6.1p1 and earlier with PAM support enabled immediately sends an error message when a user does not exist, which allows remote attackers to determine valid usernames via a timing attack.

Referenced by CVEs:CVE-2003-1562, CVE-2004-2760

Basic Data

PublishedMay 12, 2003
Last ModifiedOctober 11, 2017
Assignercve@mitre.org
Data TypeCVE
Data FormatMITRE
Data Version4.0
Problem TypeNVD-CWE-Other
CVE Data Version4.0

Base Metric V2

CVSS 2 - Version2.0
CVSS 2 - Vector StringAV:N/AC:L/Au:N/C:P/I:N/A:N
CVSS 2 - Access VectorNETWORK
CVSS 2 - Access ComplexityLOW
CVSS 2 - AuthenticationNONE
CVSS 2 - Confidentiality ImpactPARTIAL
CVSS 2 - Availability ImpactNONE
CVSS 2 - Base Score5.0
SeverityMEDIUM
Exploitability Score10.0
Impact Score2.9
Obtain All Privilegefalse
Obtain User Privilegefalse
Obtain Other Privilegefalse

Base Metric V3

No data provided.

Configurations

  • OR - Configuration 1
    Cpe VersionPartVendorProductVersionUpdateEditionLanguageSW EditionTarget SWTarget HWOtherVersion Start IncludingVersion End IncludingVersion Start ExcludingVersion End Excluding
    2.3ApplicationOpenbsdOpenssh3.4p1*******
    2.3ApplicationOpenbsdOpenssh3.6.1p1*******

Vulnerable Software List

VendorProductVersions
Openbsd Openssh 3.4p1, 3.6.1p1

References

NameSourceURLTags
http://lab.mediaservice.net/advisory/2003-01-openssh.txthttp://lab.mediaservice.net/advisory/2003-01-openssh.txtMISC
20030430 OpenSSH/PAM timing attack allows remote users identificationhttp://lists.grok.org.uk/pipermail/full-disclosure/2003-April/004815.htmlFULLDISC
20030430 OpenSSH/PAM timing attack allows remote users identificationhttp://marc.info/?l=bugtraq&m=105172058404810&w=2BUGTRAQ
20030806 [OpenPKG-SA-2003.035] OpenPKG Security Advisory (openssh)http://marc.info/?l=bugtraq&m=106018677302607&w=2BUGTRAQ
RHSA-2003:222http://www.redhat.com/support/errata/RHSA-2003-222.htmlREDHAT
RHSA-2003:224http://www.redhat.com/support/errata/RHSA-2003-224.htmlREDHAT
7467http://www.securityfocus.com/bid/7467BIDExploit Patch Vendor Advisory
TLSA-2003-31http://www.turbolinux.com/security/TLSA-2003-31.txtTURBO
oval:org.mitre.oval:def:445https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A445OVAL