DenyHosts 2.6 denial of service

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in DenyHosts 2.6. This vulnerability affects unknown code. This manipulation causes denial of service. This vulnerability is registered as CVE-2007-4323. No exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in DenyHosts 2.6. Affected by this vulnerability is an unknown functionality. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

DenyHosts 2.6 does not properly parse sshd log files, which allows remote attackers to add arbitrary hosts to the /etc/hosts.deny file and cause a denial of service by adding arbitrary IP addresses to the sshd log file, as demonstrated by logging in via ssh with a client protocol version identification containing an IP address string, a different vector than CVE-2006-6301.

The bug was discovered 10/13/2007. The weakness was published 06/06/2007 (Website). The advisory is shared at ossec.net. This vulnerability is known as CVE-2007-4323 since 08/13/2007. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 27049 (GLSA-200710-14 : DenyHosts: Denial of Service), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published 5 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (37199), Tenable (27049), SecurityFocus (BID 26061†), OSVDB (42482†) and Secunia (SA27254†). Similar entries are available at VDB-38304 and VDB-38303. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 27049
Nessus Name: GLSA-200710-14 : DenyHosts: Denial of Service
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 58675
OpenVAS Name: Gentoo Security Advisory GLSA 200710-14 (denyhosts)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

06/06/2007 🔍
08/13/2007 +67 days 🔍
08/13/2007 +0 days 🔍
08/13/2007 +0 days 🔍
10/13/2007 +61 days 🔍
10/13/2007 +0 days 🔍
10/13/2007 +0 days 🔍
10/15/2007 +2 days 🔍
10/15/2007 +0 days 🔍
10/22/2007 +7 days 🔍
11/29/2007 +38 days 🔍
03/16/2015 +2663 days 🔍
07/29/2019 +1596 days 🔍

Sourcesinfo

Advisory: ossec.net
Status: Not defined
Confirmation: 🔍

CVE: CVE-2007-4323 (🔍)
GCVE (CVE): GCVE-0-2007-4323
GCVE (VulDB): GCVE-100-38305
X-Force: 37199
SecurityFocus: 26061
Secunia: 27254
OSVDB: 42482 - DenyHosts Crafted Client Version sshd Log File Parsing Arbitrary Host Addition DoS
Vulnerability Center: 16618 - SourceForge DenyHosts Vulnerability Allows Remote Attackers to Cause DoS, Medium

See also: 🔍

Entryinfo

Created: 03/16/2015 12:18
Updated: 07/29/2019 06:46
Changes: 03/16/2015 12:18 (75), 07/29/2019 06:46 (3)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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