CVE-2007-2765

Severity Score

7.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

blockhosts.py in BlockHosts before 2.0.3 does not properly parse daemon log files, which allows remote attackers to add arbitrary deny entries to the /etc/hosts.allow file and cause a denial of service by adding arbitrary IP addresses to a daemon log file, as demonstrated by logging in through ssh using a login name containing certain strings with an IP address, which is not properly handled by a regular expression, a related issue to CVE-2006-6301.

El blockhosts.py en el BlockHosts anterior al 2.0.3 no analiza la sintásis correctamente de los ficheros de trazas del demonio, lo que permite a atacantes remotos añadir denegaciones de entradas de su elección en el fichero /etc/hosts.allow y provocar una denegación de servicio añadiendo direcciones IP de su elección en el fichero de trazas del demonio, como lo demostrado validándose en el sistema con ssh usando un nombre que contiene ciertas cadenas con direcciones IP, lo que no es manejado correctamente por las expresiones regulares. Relacionada con la vulnerabilidad CVE-2006-6301.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

Single

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2007-05-18 CVE Reserved
2007-05-18 CVE Published
2024-08-07 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CAPEC

References (6)

URL	Tag	Source
http://osvdb.org/36516	Vdb Entry
http://secunia.com/advisories/25352	Third Party Advisory
http://www.aczoom.com/tools/blockhosts/CHANGES	X_refsource_confirm
http://www.securityfocus.com/bid/24090	Vdb Entry
http://www.vupen.com/english/advisories/2007/1906	Vdb Entry
https://exchange.xforce.ibmcloud.com/vulnerabilities/34426	Vdb Entry

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Ac Zoom Search vendor "Ac Zoom"		Blockhosts Search vendor "Ac Zoom" for product "Blockhosts"				<= 2.0.2 Search vendor "Ac Zoom" for product "Blockhosts" and version " <= 2.0.2"		-		Affected