CVE-2013-4434

Dropbear 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.

CVSS v2.0 5.0 MEDIUM

5.0^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact NONE

Availability Impact NONE

References

Link	Resource
http://lists.opensuse.org/opensuse-updates/2013-10/msg00061.html	Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2013-11/msg00046.html	Third Party Advisory
http://secunia.com/advisories/55173	Vendor Advisory
http://www.openwall.com/lists/oss-security/2013/10/16/11	Mailing List Third Party Advisory
http://www.securityfocus.com/bid/62993	Third Party Advisory VDB Entry
https://matt.ucc.asn.au/dropbear/CHANGES	Vendor Advisory
https://secure.ucc.asn.au/hg/dropbear/rev/d7784616409a	Patch Third Party Advisory
https://support.citrix.com/article/CTX216642	Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2013-10/msg00061.html	Third Party Advisory
http://lists.opensuse.org/opensuse-updates/2013-11/msg00046.html	Third Party Advisory
http://secunia.com/advisories/55173	Vendor Advisory
http://www.openwall.com/lists/oss-security/2013/10/16/11	Mailing List Third Party Advisory
http://www.securityfocus.com/bid/62993	Third Party Advisory VDB Entry
https://matt.ucc.asn.au/dropbear/CHANGES	Vendor Advisory
https://secure.ucc.asn.au/hg/dropbear/rev/d7784616409a	Patch Third Party Advisory
https://support.citrix.com/article/CTX216642	Third Party Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:dropbear_ssh_project:dropbear_ssh:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2013-10-25 23:55

Updated : 2025-04-11 00:51

NVD link : CVE-2013-4434

Mitre link : CVE-2013-4434

CVE.ORG link : CVE-2013-4434

JSON object : View

Products Affected

dropbear_ssh_project

dropbear_ssh

CWE

CWE-189

Numeric Errors

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