CVE-2009-4488

Varnish 2.0.6 - 'Terminal Escape Sequence in Logs' Command Injection

Severity Score

5.0

*CVSS v2

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Varnish 2.0.6 writes data to a log file without sanitizing non-printable characters, which might allow remote attackers to modify a window's title, or possibly execute arbitrary commands or overwrite files, via an HTTP request containing an escape sequence for a terminal emulator. NOTE: the vendor disputes the significance of this report, stating that "This is not a security problem in Varnish or any other piece of software which writes a logfile. The real problem is the mistaken belief that you can cat(1) a random logfile to your terminal safely.

** CUESTIONADA ** Varnish v2.0.6, escribe datos en un archivo de los sin depurar los caracteres no escribibles, lo que podría permitir a atacantes remotos modificar la ventana de título, o posiblemente ejecutar comandos de su elección o sobrescribir archivos, a través de una petición HTTP que contiene una secuencia de escape para el emulador de terminal. NOTA: el fabricante cuentiona el significado de este informe, alegando que "esto no es un problema de seguridad en Varnish o cualquier elemento de software que escribe en el archivo de log. El problema real es la falsa creencia de que se puede ejecutar el comando "cat" de manera segura sobre un archivo de logs aleatorio en la consola".

Nginx, Varnish, Cherokee, thttpd, mini-httpd, WEBrick, Orion, AOLserver, Yaws and Boa are subject to log escape sequence injection vulnerabilities.

*Credits: N/A

CVSS Scores

NISTv2 5.0

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2009-12-30 CVE Reserved
2010-01-11 CVE Published
2010-01-11 First Exploit
2024-08-07 CVE Updated
2024-08-23 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-20: Improper Input Validation

CAPEC

References (4)

URL	Tag	Source
http://www.securityfocus.com/archive/1/508830/100/0/threaded	Mailing List

URL	Date	SRC
https://www.exploit-db.com/exploits/33498	2010-01-11
http://www.securityfocus.com/bid/37713	2024-08-07
http://www.ush.it/team/ush/hack_httpd_escape/adv.txt	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
Varnish.projects.linpro Search vendor "Varnish.projects.linpro"		Varnish Search vendor "Varnish.projects.linpro" for product "Varnish"				2.0.6 Search vendor "Varnish.projects.linpro" for product "Varnish" and version "2.0.6"		-		Affected