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cveCiscoCVE-2021-1501
HistoryApr 29, 2021 - 6:15 p.m.

CVE-2021-1501

2021-04-2918:15:09
CWE-613
cisco
web.nvd.nist.gov
42
11
cisco
asa
ftd
software
sip inspection
dos
vulnerability
nvd
cve-2021-1501

CVSS2

7.8

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

CVSS3

8.6

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

EPSS

0.002

Percentile

52.6%

JSON

A vulnerability in the SIP inspection engine of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a crash and reload of an affected device, resulting in a denial of service (DoS) condition.The vulnerability is due to a crash that occurs during a hash lookup for a SIP pinhole connection. An attacker could exploit this vulnerability by sending crafted SIP traffic through an affected device. A successful exploit could allow the attacker to cause a crash and reload of the affected device.

Affected configurations

Nvd
Node
ciscofirepower_threat_defenseRange6.2.2–6.4.0.12
OR
ciscofirepower_threat_defenseRange6.5.0–6.6.4
OR
ciscofirepower_threat_defenseRange6.7.0–6.7.0.2
OR
ciscoadaptive_security_appliance_softwareRange9.8–9.8.4.34
OR
ciscoadaptive_security_appliance_softwareRange9.9–9.9.2.85
OR
ciscoadaptive_security_appliance_softwareRange9.10–9.12.4.18
OR
ciscoadaptive_security_appliance_softwareRange9.13–9.13.1.21
OR
ciscoadaptive_security_appliance_softwareRange9.14–9.14.2.13
OR
ciscoadaptive_security_appliance_softwareRange9.15–9.15.1.15
VendorProductVersionCPE
ciscofirepower_threat_defense*cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:*
ciscoadaptive_security_appliance_software*cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:*

CNA Affected

[
  {
    "product": "Cisco Adaptive Security Appliance (ASA) Software",
    "vendor": "Cisco",
    "versions": [
      {
        "status": "affected",
        "version": "n/a"
      }
    ]
  }
]

Social References

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CVSS2

7.8

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

CVSS3

8.6

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

EPSS

0.002

Percentile

52.6%

JSON
Related for CVE-2021-1501
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