CVE-2018-15397: cisco adaptive_security_appliance_software Key Management Errors

Vulnerability summary

CVE-2018-15397 is a high (CVSS 7.1) Key Management Errors vulnerability in cisco adaptive_security_appliance_software. EPSS estimates a 1.20% chance of exploitation in the next 30 days, higher than 67.5% of scored vulnerabilities.

Timeline

1. 05-10-2018
   PublishedVulnerability first disclosed.
2. 26-11-2024
   Last modifiedVulnerability information updated.

Description

A vulnerability in the implementation of Traffic Flow Confidentiality (TFC) over IPsec functionality in Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected device to restart unexpectedly, resulting in a denial of service (DoS) condition. The vulnerability is due to an error that may occur if the affected software renegotiates the encryption key for an IPsec tunnel when certain TFC traffic is in flight. An attacker could exploit this vulnerability by sending a malicious stream of TFC traffic through an established IPsec tunnel on an affected device. A successful exploit could allow the attacker to cause a daemon process on the affected device to crash, which could cause the device to crash and result in a DoS condition.

• CWE-320Key Management ErrorsWeaknesses in this category are related to errors in the management of cryptographic keys.