CVE-2013-4434

medium

Description

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.

References

https://support.citrix.com/article/CTX216642

https://secure.ucc.asn.au/hg/dropbear/rev/d7784616409a

https://matt.ucc.asn.au/dropbear/CHANGES

http://www.securityfocus.com/bid/62993

http://www.openwall.com/lists/oss-security/2013/10/16/11

http://secunia.com/advisories/55173

http://lists.opensuse.org/opensuse-updates/2013-11/msg00046.html

http://lists.opensuse.org/opensuse-updates/2013-10/msg00061.html

Details

Source: Mitre, NVD

Published: 2013-10-25

Updated: 2024-11-21

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 5.3

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N