#VU12086 Cross-site scripting in Cisco ASA 5500-X Series - CVE-2018-0251
Published: April 18, 2018 / Updated: April 23, 2018
Vulnerability identifier: #VU12086
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-0251
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Cisco ASA 5500-X Series
Cisco ASA 5500-X Series
Software vendor:
Cisco Systems, Inc
Cisco Systems, Inc
Description
The vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The weakness exists in the Web Server Authentication Required screen of the Clientless Secure Sockets Layer (SSL) VPN portal due to insufficient sanitization of user-supplied data. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Remediation
Update to versions 201.2(11.1), 201.2(1.25), 201.1(15.19), 101.4(1.17), 100.13(0.180), 100.11(0.97), 100.8(40.149), 99.2(0.27), 99.1(20.184), 98.2(0.17), 97.1(0.177), 96.4(0.15), 9.9(2), 9.9(1.99), 9.6(3.27), 9.2(4.28) or 9.1(7.25).