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cve[email protected]CVE-2023-20270
HistoryNov 01, 2023 - 5:15 p.m.

CVE-2023-20270

2023-11-0117:15:11
CWE-20
web.nvd.nist.gov
23
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

26.8%

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
OR
ciscofirepower_threat_defenseMatch7.1.0.1
OR
ciscofirepower_threat_defenseMatch7.1.0.2
OR
ciscofirepower_threat_defenseMatch7.1.0.3
OR
ciscofirepower_threat_defenseMatch7.2.0
OR
ciscofirepower_threat_defenseMatch7.2.0.1
OR
ciscofirepower_threat_defenseMatch7.2.1
OR
ciscofirepower_threat_defenseMatch7.2.2
OR
ciscofirepower_threat_defenseMatch7.2.3
OR
ciscofirepower_threat_defenseMatch7.3.0
OR
ciscofirepower_threat_defenseMatch7.3.1
OR
ciscofirepower_threat_defenseMatch7.3.1.1

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"
      }
    ]
  }
]

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

26.8%

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