Cisco ASA DoS bug attacked in wild

Summary: Cisco Talos reported a sudden spike in exploitation attempts against CVE-2018-0296, a denial-of-service and information disclosure directory traversal bug in the web framework of Cisco ASA and Firepower appliances. The flaw, which lets a specially crafted URL reboot the appliance or disclose unauthenticated information, was first seen exploited publicly in June 2018 but has increased in frequency over the past several days and weeks.
Key Takeaway: The bug is not new, yet exploitation is climbing, and Talos notes adversaries do not take holidays even as staff do - so an appliance left unpatched over a break can be rebooted or leak information without anyone watching.

Read the original at Cisco Talos ↗

Topics: Vulnerabilities & Patching
Mentions: CVE-2018-0296
Related: CVE-2018-0296: Cisco Adaptive Security Appliance (ASA) Denial-of-Service Vulnerability Known Exploited Vulnerabilities · Nov 03, 2021
Attackers Exploit UnrealIRCd Flaw That Enables Server-Level Command Injection Cyber Risks · Nov 14, 2026
U.S. CISA adds Check Point and UnrealIRCd flaws to its Known Exploited Vulnerabilities catalog Cyber Risks · Nov 14, 2026