CVE-2020-8115

Severity Score

6.1

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

A reflected XSS vulnerability has been discovered in the publicly accessible afr.php delivery script of Revive Adserver <= 5.0.3 by Jacopo Tediosi. There are currently no known exploits: the session identifier cannot be accessed as it is stored in an http-only cookie as of v3.2.2. On older versions, however, under specific circumstances, it could be possible to steal the session identifier and gain access to the admin interface. The query string sent to the www/delivery/afr.php script was printed back without proper escaping in a JavaScript context, allowing an attacker to execute arbitrary JS code on the browser of the victim.

Se ha detectado una vulnerabilidad de tipo XSS reflejado en el script de entrega afr.php de acceso público de Revive Adserver versiones anteriores e incluyendo a la 5.0.3 de Jacopo Tediosi. Actualmente no existen explotaciones conocidas: el identificador de sesión no puede ser accedido ya que está almacenado en una cookie solo http a partir de la versión v3.2.2. Sin embargo, en versiones anteriores, en circunstancias específicas, podría ser posible robar el identificador de sesión y conseguir acceso a la interfaz de administración. La cadena de consulta enviada en el script www/delivery/afr.php fue impresa sin escapar apropiadamente en un contexto JavaScript, permitiendo a un atacante ejecutar código JS arbitrario en el navegador de la víctima.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-01-28 CVE Reserved
2020-02-04 CVE Published
2023-07-10 EPSS Updated
2024-08-04 CVE Updated
2024-08-04 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC
https://hackerone.com/reports/775693	2024-08-04

URL	Date	SRC

URL	Date	SRC
https://www.revive-adserver.com/security/revive-sa-2020-001	2020-02-11

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Revive-adserver Search vendor "Revive-adserver"		Revive Adserver Search vendor "Revive-adserver" for product "Revive Adserver"				<= 5.0.3 Search vendor "Revive-adserver" for product "Revive Adserver" and version " <= 5.0.3"		-		Affected