CVE-2007-0166

FreeBSD-SA-07-01.jail.txt

Severity Score

5.5

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The jail rc.d script in FreeBSD 5.3 up to 6.2 does not verify pathnames when writing to /var/log/console.log during a jail start-up, or when file systems are mounted or unmounted, which allows local root users to overwrite arbitrary files, or mount/unmount files, outside of the jail via a symlink attack.

El script de cárcel rc.d en FreeBSD 5.3 hasta to 6.2 no verifica nombres de ruta cuando escribe en /var/log/console.log durante un arranque de cárcel, o cuando ficheros del sistema están montados o desmontados, lo cual permite a atacantes remotos sobre-escribir ficheros de su elección, o montar y desmontar ficheros, fuera de la cárcel mediante un ataque de enlaces simbólicos

Due to the lack of handling of potential symbolic links the host's jail rc.d(8) script is vulnerable to "symlink attacks". By replacing /var/log/console.log inside the jail with a symbolic link it is possible for the superuser (root) inside the jail to overwrite files on the host system outside the jail with arbitrary content. This in turn can be used to execute arbitrary commands with non-jailed superuser privileges.

*Credits: N/A

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Local

Attack Complexity

Medium

Authentication

Single

Confidentiality

Complete

Integrity

Complete

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2007-01-09 CVE Reserved
2007-01-11 CVE Published
2024-08-07 CVE Updated
2024-08-07 First Exploit
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CAPEC

References (5)

URL	Tag	Source
http://osvdb.org/32726	Vdb Entry
http://secunia.com/advisories/23730	Third Party Advisory
http://securitytracker.com/id?1017505	Vdb Entry
http://www.securityfocus.com/bid/22011	Vdb Entry

URL	Date	SRC
http://security.freebsd.org/advisories/FreeBSD-SA-07:01.jail.asc	2024-08-07

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
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				<= 6.2 Search vendor "Freebsd" for product "Freebsd" and version " <= 6.2"		-		Affected
Freebsd Search vendor "Freebsd"		Freebsd Search vendor "Freebsd" for product "Freebsd"				5.3 Search vendor "Freebsd" for product "Freebsd" and version "5.3"		-		Affected