// For flags

CVE-2018-0251

 

Severity Score

6.1
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A vulnerability in the Web Server Authentication Required screen of the Clientless Secure Sockets Layer (SSL) VPN portal of Cisco Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against a user of that portal on an affected device. The vulnerability is due to insufficient validation of user-supplied input by the web-based interface of an affected device. An attacker could exploit this vulnerability by persuading a user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the portal or allow the attacker to access sensitive browser-based information. This vulnerability affects the following Cisco products if they are running a vulnerable release of Cisco ASA Software: 3000 Series Industrial Security Appliances, Adaptive Security Virtual Appliance (ASAv), ASA 5500 Series Adaptive Security Appliances, ASA 5500-X Series Next-Generation Firewalls, ASA Services Module for Cisco Catalyst 6500 Series Switches, ASA Services Module for Cisco 7600 Series Routers. Cisco Bug IDs: CSCvh20742.

Una vulnerabilidad en la pantalla Web Server Authentication Required del portal Clientless Secure Sockets Layer (SSL) VPN de Cisco Adaptive Security Appliance (ASA) Software podría permitir que un atacante remoto no autenticado lleve a cabo un ataque de Cross-Site Scripting (XSS) contra un usuario de ese portal en un dispositivo afectado. La vulnerabilidad se debe a la validación insuficiente de entrada de datos de parte del usuario en la interfaz web de un dispositivo afectado. Un atacante podría explotar esta vulnerabilidad haciendo que un usuario de la interfaz haga clic en un enlace manipulado. Su explotación con éxito podría permitir al atacante ejecutar código script arbitrario en el contexto del portal o que pueda acceder a información sensible del navegador. Esta vulnerabilidad afecta a los siguientes productos de Cisco que ejecutan una versión vulnerable de Cisco ASA Software: 3000 Series Industrial Security Appliances, Adaptive Security Virtual Appliance (ASAv), ASA 5500 Series Adaptive Security Appliances, ASA 5500-X Series Next-Generation Firewalls, ASA Services Module for Cisco Catalyst 6500 Series Switches y ASA Services Module for Cisco 7600 Series Routers. Cisco Bug IDs: CSCvh20742.

*Credits: N/A
CVSS Scores
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
  • 2017-11-27 CVE Reserved
  • 2018-04-19 CVE Published
  • 2023-09-10 EPSS Updated
  • 2024-08-05 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Cisco
Search vendor "Cisco"
 Adaptive Security Appliance Software
Search vendor "Cisco" for product "Adaptive Security Appliance Software"
 9.8\(2.15\)
Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version "9.8\(2.15\)"
-
Affected
Cisco
Search vendor "Cisco"
 Adaptive Security Appliance Software
Search vendor "Cisco" for product "Adaptive Security Appliance Software"
 9.9\(1\)
Search vendor "Cisco" for product "Adaptive Security Appliance Software" and version "9.9\(1\)"
-
Affected