PT-2019-3391 · Cisco · Cisco Asa+1

Published 2019-10-02 · Updated 2023-08-15 · CVE-2019-15256

Positive Technologies (AI Summary)

CVSS v3.1

8.6

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software (affected versions not specified)

Description A vulnerability in the Internet Key Exchange version 1 (IKEv1) feature could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. The vulnerability is due to improper management of system memory. An attacker could exploit this vulnerability by sending malicious IKEv1 traffic to an affected device. The attacker does not need valid credentials to authenticate the VPN session, nor does the attacker's source address need to match a peer statement in the crypto map applied to the ingress interface of the affected device. An exploit could allow the attacker to exhaust system memory resources, leading to a reload of an affected device.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Resource Exhaustion

Weakness Enumeration

CWE-400

CWE-399

Related Identifiers

BDU:2019-03532

CVE-2019-15256

Affected Products

Cisco Asa

Cisco Ftd

References · 5

• https://osv.dev/vulnerability/CVE-2019-15256 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-15256 · Security Note
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191002-asa-ftd-ikev1-dos · Vendor Advisory
• https://bdu.fstec.ru/vul/2019-03532 · Security Note
• https://t.me/cvenotify/56495 · Telegram Post