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[email protected]CVE-2019-1873

HistoryJul 10, 2019 - 6:15 p.m.

CVE-2019-1873

2019-07-1018:15:11

CWE-400

CWE-20

[email protected]

web.nvd.nist.gov

cisco

asa

ftd

vulnerability

unexpected reboot

ssl

tls

denial of service

dos

input validation

nvd

cve-2019-1873

7.8 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

8.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

8.5 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

52.3%

JSON

A vulnerability in the cryptographic driver for Cisco Adaptive Security Appliance Software (ASA) and Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the device to reboot unexpectedly. The vulnerability is due to incomplete input validation of a Secure Sockets Layer (SSL) or Transport Layer Security (TLS) ingress packet header. An attacker could exploit this vulnerability by sending a crafted TLS/SSL packet to an interface on the targeted device. An exploit could allow the attacker to cause the device to reload, which will result in a denial of service (DoS) condition. Note: Only traffic directed to the affected system can be used to exploit this vulnerability. This vulnerability affects systems configured in routed and transparent firewall mode and in single or multiple context mode. This vulnerability can be triggered by IPv4 and IPv6 traffic. A valid SSL or TLS session is required to exploit this vulnerability.

Affected configurations

NVD

Node

ciscoasa_5506-x_firmwareMatch9.6\(4.16\)

ciscoasa_5506-x_firmwareMatch9.8\(3.8\)

AND

ciscoasa_5506-xMatch-

Node

ciscoasa_5506h-x_firmwareMatch9.6\(4.16\)

ciscoasa_5506h-x_firmwareMatch9.8\(3.8\)

AND

ciscoasa_5506h-xMatch-

Node

ciscoasa_5506w-x_firmwareMatch9.6\(4.16\)

ciscoasa_5506w-x_firmwareMatch9.8\(3.8\)

AND

ciscoasa_5506w-xMatch-

Node

ciscoasa_5508-x_firmwareMatch9.6\(4.16\)

ciscoasa_5508-x_firmwareMatch9.8\(3.8\)

AND

ciscoasa_5508-xMatch-

Node

ciscoasa_5516-x_firmwareMatch9.6\(4.16\)

ciscoasa_5516-x_firmwareMatch9.8\(3.8\)

AND

ciscoasa_5516-xMatch-

CPENameOperatorVersion
cisco:asa_5506-x_firmwarecisco asa 5506-x firmwareeq9.6\(4.16\)
cisco:asa_5506-x_firmwarecisco asa 5506-x firmwareeq9.8\(3.8\)

CPE	Name	Operator	Version
cisco:asa_5506-x_firmware	cisco asa 5506-x firmware	eq	9.6\(4.16\)
cisco:asa_5506-x_firmware	cisco asa 5506-x firmware	eq	9.8\(3.8\)

CNA Affected

[
  {
    "product": "Cisco Adaptive Security Appliance (ASA) Software ",
    "vendor": "Cisco",
    "versions": [
      {
        "lessThan": "9.4.4.36",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "9.6.4.29",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "9.8.4.3",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "9.9.2.52",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "9.10.1.22",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "9.12.2",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

References

www.securityfocus.com/bid/109123

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190710-asa-ftd-dos

7.8 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

8.6 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

8.5 High

AI Score

Confidence

High

0.002 Low

EPSS

Percentile

52.3%

JSON

Related for CVE-2019-1873

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