CVE-2013-6890

2013-12-2322:55:03

CWE-287

mitre

web.nvd.nist.gov

denyhosts

2.6

vulnerability

authentication logs

denial of service

cve-2013-6890

nvd

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

AI Score

6.6

Confidence

Low

EPSS

0.357

Percentile

97.2%

JSON

denyhosts 2.6 uses an incorrect regular expression when analyzing authentication logs, which allows remote attackers to cause a denial of service (incorrect block of IP addresses) via crafted login names.

Affected configurations

Nvd

Node

debiandebian_linuxMatch6.0

debiandebian_linuxMatch7.0

debiandebian_linuxMatch7.1

fedoraprojectfedora

Node

phil_schwartzdenyhostsMatch2.6

VendorProductVersionCPE
debiandebian_linux6.0cpe:2.3:o:debian:debian_linux:6.0:*:*:*:*:*:*:*
debiandebian_linux7.0cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
debiandebian_linux7.1cpe:2.3:o:debian:debian_linux:7.1:*:*:*:*:*:*:*
fedoraprojectfedora*cpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
phil_schwartzdenyhosts2.6cpe:2.3:a:phil_schwartz:denyhosts:2.6:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
debian	debian_linux	6.0	cpe:2.3:o:debian:debian_linux:6.0:::::::*
debian	debian_linux	7.0	cpe:2.3:o:debian:debian_linux:7.0:::::::*
debian	debian_linux	7.1	cpe:2.3:o:debian:debian_linux:7.1:::::::*
fedoraproject	fedora	*	cpe:2.3:o:fedoraproject:fedora::::::::
phil_schwartz	denyhosts	2.6	cpe:2.3:a:phil_schwartz:denyhosts:2.6:::::::*