CVE-2018-0251

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2018-0251
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2018-04-19 20:29:00 UTC
Updated2023-08-15 15:24:00 UTC
DescriptionA 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.

Risk And Classification

Problem Types: CWE-79

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Cisco Adaptive Security Appliance Software 9.8(2.15) All All All
Application Cisco Adaptive Security Appliance Software 9.8\(2.15\) All All All
Application Cisco Adaptive Security Appliance Software 9.9(1) All All All
Application Cisco Adaptive Security Appliance Software 9.9\(1\) All All All
Operating System Cisco Adaptive Security Appliance Software 9.8\(2.15\) All All All
Operating System Cisco Adaptive Security Appliance Software 9.9\(1\) All All All
Application Cisco Adaptive Security Appliance Software 9.8\(2.15\) All All All
Application Cisco Adaptive Security Appliance Software 9.9\(1\) All All All

References

ReferenceSourceLinkTags
Cisco Adaptive Security Appliance Software CVE-2018-0251 Cross Site Scripting Vulnerability BID www.securityfocus.com Third Party Advisory, VDB Entry
Cisco Adaptive Security Appliance Clientless SSL VPN Cross-Site Scripting Vulnerability CONFIRM tools.cisco.com Vendor Advisory
Cisco ASA Input Validation Flaw in Clientless SSL VPN Portal Lets Remote Users Conduct Cross-Site Scripting Attacks - SecurityTracker SECTRACK www.securitytracker.com Third Party Advisory, VDB Entry
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report