Cisco Snort 3 Detection Engine DoS

Cross-site scripting (XSS) in the VPN web services component of Cisco Secure Firewall ASA and FTD allows unauthenticated remote attackers to inject malicious scripts that execute in a user's browser when visiting a crafted link. An attacker can exploit this through improper input validation to execute arbitrary HTML or JavaScript in the context of the VPN web server. No patch is currently available for this medium-severity vulnerability.

Snort 3 Detection Engine in multiple Cisco products can be remotely restarted by unauthenticated attackers through crafted packets sent over established connections, due to improper binder module initialization logic. This denial-of-service vulnerability interrupts packet inspection capabilities and can be triggered without authentication or user interaction. No patch is currently available for this medium-severity flaw.

Cisco Snort 3 Detection Engine can be remotely restarted by an unauthenticated attacker through crafted HTTP packets exploiting improper JavaScript normalization in the JSTokenizer logic, causing a denial of service condition that interrupts packet inspection. The vulnerability requires the JSTokenizer feature to be enabled and can be triggered via an established network connection without authentication. No patch is currently available.

Unauthenticated remote attackers can crash the Snort 3 Detection Engine by sending crafted HTTP packets with malformed Multicast DNS fields, causing a denial of service that interrupts packet inspection across multiple Cisco products. The vulnerability stems from incomplete error checking in HTTP header parsing and requires no authentication or user interaction to trigger. No patch is currently available for this MEDIUM severity issue.

Snort 3 Detection Engine contains a vulnerability that allows attackers to cause a denial of service (DoS) condition when the Snort 3 Detection Engine rest (CVSS 5.8).

Snort 3 detection engine contains a vulnerability that allows attackers to cause a DoS condition when the Snort 3 Detection Engine unexpectedly restarts (CVSS 5.8).

Cisco Secure Firewall ASA and FTD devices with VPN web services enabled are vulnerable to cross-site request forgery (CSRF) attacks due to insufficient HTTP request validation. An attacker can trick users into visiting a malicious website that sends crafted requests to the affected appliance, potentially allowing injection of malicious content reflected back to the victim's browser. No patch is currently available for this vulnerability.