Vulnerability Name:

CVE-2019-1705 (CCN-160426)

Assigned:2018-12-06
Published:2019-05-01
Updated:2019-10-09
Summary:A vulnerability in the remote access VPN session manager of Cisco Adaptive Security Appliance (ASA) Software could allow a unauthenticated, remote attacker to cause a denial of service (DoS) condition on the remote access VPN services. The vulnerability is due to an issue with the remote access VPN session manager. An attacker could exploit this vulnerability by requesting an excessive number of remote access VPN sessions. An exploit could allow the attacker to cause a DoS condition.
CVSS v3 Severity:5.9 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)
5.2 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
4.6 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/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): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-404
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2019-1705

Source: BID
Type: Third Party Advisory, VDB Entry
108151

Source: XF
Type: UNKNOWN
cisco-cve20191705-dos(160426)

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

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

Vulnerable Configuration:Configuration 1:
  • cpe:/a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* (Version >= 9.4 and < 9.4.4.34)
  • OR cpe:/a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* (Version >= 9.5 and < 9.6.4.25)
  • OR cpe:/a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* (Version >= 9.7 and < 9.8.4)
  • OR cpe:/a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* (Version >= 9.9 and < 9.9.2.50)
  • OR cpe:/a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* (Version >= 9.10 and < 9.10.1.17)
  • AND
  • cpe:/h:cisco:asa_5506-x:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asa_5506h-x:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asa_5506w-x:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asa_5508-x:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asa_5516-x:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asa_5525-x:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asa_5545-x:-:*:*:*:*:*:*:*
  • OR cpe:/h:cisco:asa-5555-x:-:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*

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