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[email protected]CVE-2019-1687

HistoryMay 03, 2019 - 3:29 p.m.

CVE-2019-1687

2019-05-0315:29:00

CWE-20

[email protected]

web.nvd.nist.gov

cve-2019-1687

cisco asa

ftd software

tcp proxy

dos

denial of service

nvd

vulnerability

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

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

7.5 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

48.2%

JSON

A vulnerability in the TCP proxy functionality for Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause the device to restart unexpectedly, resulting in a denial of service (DoS) condition. The vulnerability is due to an error in TCP-based packet inspection, which could cause the TCP packet to have an invalid Layer 2 (L2)-formatted header. An attacker could exploit this vulnerability by sending a crafted TCP packet sequence to the targeted device. A successful exploit could allow the attacker to cause a DoS condition.

Affected configurations

NVD

Node

ciscoadaptive_security_appliance_softwareRange<9.4.4.34

ciscoadaptive_security_appliance_softwareRange9.5–9.6.4.25

ciscoadaptive_security_appliance_softwareRange9.7–9.8.4

ciscoadaptive_security_appliance_softwareRange9.9–9.9.2.50

ciscoadaptive_security_appliance_softwareRange9.10–9.10.1.17

AND

ciscoasa_5505Match-

ciscoasa_5510Match-

ciscoasa_5512-xMatch-

ciscoasa_5515-xMatch-

ciscoasa_5520Match-

ciscoasa_5525-xMatch-

ciscoasa_5540Match-

ciscoasa_5545-xMatch-

ciscoasa_5550Match-

ciscoasa_5555-xMatch-

ciscoasa_5580Match-

ciscoasa_5585-xMatch-

Node

ciscofirepower_threat_defenseRange6.0.0–6.2.3.12

ciscofirepower_threat_defenseRange6.3.0–6.3.0.3

CPENameOperatorVersion
cisco:adaptive_security_appliance_softwarecisco adaptive security appliance softwarelt9.4.4.34
cisco:adaptive_security_appliance_softwarecisco adaptive security appliance softwarelt9.6.4.25
cisco:adaptive_security_appliance_softwarecisco adaptive security appliance softwarelt9.8.4
cisco:adaptive_security_appliance_softwarecisco adaptive security appliance softwarelt9.9.2.50
cisco:adaptive_security_appliance_softwarecisco adaptive security appliance softwarelt9.10.1.17

CPE	Name	Operator	Version
cisco:adaptive_security_appliance_software	cisco adaptive security appliance software	lt	9.4.4.34
cisco:adaptive_security_appliance_software	cisco adaptive security appliance software	lt	9.6.4.25
cisco:adaptive_security_appliance_software	cisco adaptive security appliance software	lt	9.8.4
cisco:adaptive_security_appliance_software	cisco adaptive security appliance software	lt	9.9.2.50
cisco:adaptive_security_appliance_software	cisco adaptive security appliance software	lt	9.10.1.17

CNA Affected

[
  {
    "product": "Cisco Adaptive Security Appliance (ASA) Software ",
    "vendor": "Cisco",
    "versions": [
      {
        "lessThan": "9.4.4.34",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "9.8.4",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      },
      {
        "lessThan": "9.9.2.50",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

References

www.securityfocus.com/bid/108176

tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-asa-ftdtcp-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

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

7.5 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

48.2%

JSON

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