CVE-2013-4434

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2013-4434
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2013-10-25 23:55:03 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionDropbear SSH Server before 2013.59 generates error messages for a failed logon attempt with different time delays depending on whether the user account exists, which allows remote attackers to discover valid usernames.

Risk And Classification

Primary CVSS: v2.0 5 from [email protected]

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

Problem Types: CWE-189 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Dropbear Ssh Project Dropbear Ssh All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
openSUSE-SU-2013:1616-1: moderate: update for dropbear af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Third Party Advisory
oss-security - Re: CVE Request: dropbear sshd daemon 2013.59 release af854a3a-2127-422b-91ae-364da2661108 www.openwall.com Mailing List, Third Party Advisory
Dropbear SSH 'svr-auth.c' User Enumeration Weakness af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
About Secunia Research | Flexera af854a3a-2127-422b-91ae-364da2661108 secunia.com Vendor Advisory
matt.ucc.asn.au/dropbear/CHANGES af854a3a-2127-422b-91ae-364da2661108 matt.ucc.asn.au Vendor Advisory
Multiple Security Vulnerabilities in Citrix NetScaler Platform IPMI Lights Out Management (LOM) firmware af854a3a-2127-422b-91ae-364da2661108 support.citrix.com Third Party Advisory
secure.ucc.asn.au/hg/dropbear/rev/d7784616409a af854a3a-2127-422b-91ae-364da2661108 secure.ucc.asn.au Patch, Third Party Advisory
openSUSE-SU-2013:1696-1: moderate: update for dropbear af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report