Vulnerability Name:

CVE-2019-1706 (CCN-160408)

Assigned:2018-12-06
Published:2019-05-01
Updated:2021-10-29
Summary:A vulnerability in the software cryptography module of the Cisco Adaptive Security Virtual Appliance (ASAv) and Firepower 2100 Series running Cisco Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to cause an unexpected reload of the device that results in a denial of service (DoS) condition. The vulnerability is due to a logic error with how the software cryptography module handles IPsec sessions. An attacker could exploit this vulnerability by creating and sending traffic in a high number of IPsec sessions through the targeted device. A successful exploit could cause the device to reload and result in a DoS condition.
CVSS v3 Severity:8.6 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H)
7.5 High (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
8.6 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H)
7.5 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Changed
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:7.8 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-327
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2019-1706

Source: XF
Type: UNKNOWN
cisco-cve20191706-dos(160408)

Source: CCN
Type: Cisco Security Advisory cisco-sa-20190501-asa-ipsec-dos
Cisco Adaptive Security Appliance Software IPsec Denial of Service Vulnerability

Source: CISCO
Type: Vendor Advisory
20190501 Cisco Adaptive Security Appliance Software IPsec Denial of Service Vulnerability

Vulnerable Configuration:Configuration 1:
  • cpe:/a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* (Version >= 9.9 and <= 9.9.2.50)
  • AND
  • cpe:/h:cisco:asa-5506w-x:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asa-5525-x:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asa-5555-x:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asa-5545-x:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asa-5516-x:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asa-5508-x:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asa-5506h-x:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asa-5506-x:-:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    cisco adaptive security appliance software *
    cisco asa-5506w-x -
    cisco asa-5525-x -
    cisco asa-5555-x -
    cisco asa-5545-x -
    cisco asa-5516-x -
    cisco asa-5508-x -
    cisco asa-5506h-x -
    cisco asa-5506-x -