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Cisco Web Security Appliance Web Framework HTTP Header Injection Vulnerability

Cisco-SA-20150619-CVE-2015-4198 · Medium · Published · Updated

A vulnerability in the web framework of Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to inject a crafted HTTP header that could introduce arbitrary code into the web interface.   The vulnerability is due to insufficient validation of user input before it is used as an HTTP header value. An attacker could exploit this vulnerability by persuading a user to access a crafted URL. A successful exploit could allow the attacker to execute arbitrary HTML or script in a targeted user's browser. Cisco has confirmed the vulnerability; however, software updates are not available. To exploit the vulnerability, the attacker may provide a link that directs a user to a malicious site and use misleading language or instructions to persuade the user to follow the link.

Cisco advisory ·CSAF JSON

Workarounds

Administrators are advised to contact the vendor regarding future updates and releases.

Users are advised not to visit websites or follow links that have suspicious characteristics or cannot be verified as safe.

Administrators are advised to monitor affected systems.

CVEsCVE-2015-4198
Cisco Bug IDsCSCuu24409
CVSS ScoreBase 4.3
Base 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N/E:F/RL:U/RC:C
Product Names From Source
Cisco Web Security Appliance (WSA), Cisco Secure Web Appliance

Related Products

Product CVE Evidence
Cisco Web Security Appliance (WSA) CVE-2015-4198 Cisco OpenVuln
Cisco Secure Web Appliance CVE-2015-4198 Cisco OpenVuln