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[email protected]CVE-2023-20270

HistoryNov 01, 2023 - 5:15 p.m.

CVE-2023-20270

2023-11-0117:15:11

CWE-20

[email protected]

web.nvd.nist.gov

cve-2023-20270

smb protocol

cisco

ftd software

vulnerability

bypass

dos

nvd

5.8 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

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

5.9 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

26.9%

JSON

A vulnerability in the interaction between the Server Message Block (SMB) protocol preprocessor and the Snort 3 detection engine for Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass the configured policies or cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper error-checking when the Snort 3 detection engine is processing SMB traffic. An attacker could exploit this vulnerability by sending a crafted SMB packet stream through an affected device. A successful exploit could allow the attacker to cause the Snort process to reload, resulting in a DoS condition.

Affected configurations

NVD

Node

ciscofirepower_threat_defenseMatch7.1.0

ciscofirepower_threat_defenseMatch7.1.0.1

ciscofirepower_threat_defenseMatch7.1.0.2

ciscofirepower_threat_defenseMatch7.1.0.3

ciscofirepower_threat_defenseMatch7.2.0

ciscofirepower_threat_defenseMatch7.2.0.1

ciscofirepower_threat_defenseMatch7.2.1

ciscofirepower_threat_defenseMatch7.2.2

ciscofirepower_threat_defenseMatch7.2.3

ciscofirepower_threat_defenseMatch7.3.0

ciscofirepower_threat_defenseMatch7.3.1

ciscofirepower_threat_defenseMatch7.3.1.1

CPENameOperatorVersion
cisco:firepower_threat_defensecisco firepower threat defenseeq7.1.0
cisco:firepower_threat_defensecisco firepower threat defenseeq7.1.0.1
cisco:firepower_threat_defensecisco firepower threat defenseeq7.1.0.2
cisco:firepower_threat_defensecisco firepower threat defenseeq7.1.0.3
cisco:firepower_threat_defensecisco firepower threat defenseeq7.2.0
cisco:firepower_threat_defensecisco firepower threat defenseeq7.2.0.1
cisco:firepower_threat_defensecisco firepower threat defenseeq7.2.1
cisco:firepower_threat_defensecisco firepower threat defenseeq7.2.2
cisco:firepower_threat_defensecisco firepower threat defenseeq7.2.3
cisco:firepower_threat_defensecisco firepower threat defenseeq7.3.0

CPE	Name	Operator	Version
cisco:firepower_threat_defense	cisco firepower threat defense	eq	7.1.0
cisco:firepower_threat_defense	cisco firepower threat defense	eq	7.1.0.1
cisco:firepower_threat_defense	cisco firepower threat defense	eq	7.1.0.2
cisco:firepower_threat_defense	cisco firepower threat defense	eq	7.1.0.3
cisco:firepower_threat_defense	cisco firepower threat defense	eq	7.2.0
cisco:firepower_threat_defense	cisco firepower threat defense	eq	7.2.0.1
cisco:firepower_threat_defense	cisco firepower threat defense	eq	7.2.1
cisco:firepower_threat_defense	cisco firepower threat defense	eq	7.2.2
cisco:firepower_threat_defense	cisco firepower threat defense	eq	7.2.3
cisco:firepower_threat_defense	cisco firepower threat defense	eq	7.3.0

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1-10 of 121

CNA Affected

[
  {
    "vendor": "Cisco",
    "product": "Cisco Firepower Threat Defense Software",
    "versions": [
      {
        "version": "7.1.0",
        "status": "affected"
      },
      {
        "version": "7.1.0.1",
        "status": "affected"
      },
      {
        "version": "7.1.0.2",
        "status": "affected"
      },
      {
        "version": "7.1.0.3",
        "status": "affected"
      },
      {
        "version": "7.2.0",
        "status": "affected"
      },
      {
        "version": "7.2.0.1",
        "status": "affected"
      },
      {
        "version": "7.2.1",
        "status": "affected"
      },
      {
        "version": "7.2.2",
        "status": "affected"
      },
      {
        "version": "7.2.3",
        "status": "affected"
      },
      {
        "version": "7.3.0",
        "status": "affected"
      },
      {
        "version": "7.3.1",
        "status": "affected"
      },
      {
        "version": "7.3.1.1",
        "status": "affected"
      }
    ]
  }
]

References

sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-smbsnort3-dos-pfOjOYUV

5.8 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

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

5.9 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

26.9%

JSON

Related for CVE-2023-20270

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