Vulnerability Monitor

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CVE-2021-1501

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.

Published

2021-04-29T18:15:09.463

Last Modified

2024-11-21T05:44:29.640

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 8.6 (HIGH)

CVSSv2 Vector

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

  • Access Vector: NETWORK
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: COMPLETE
Exploitability Score

10.0

Impact Score

6.9

Weaknesses
  • Type: Secondary
    CWE-613
  • Type: Primary
    NVD-CWE-noinfo
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application cisco firepower_threat_defense < 6.4.0.12 Yes
Application cisco firepower_threat_defense < 6.6.4 Yes
Application cisco firepower_threat_defense < 6.7.0.2 Yes
Operating System cisco adaptive_security_appliance_software < 9.8.4.34 Yes
Operating System cisco adaptive_security_appliance_software < 9.9.2.85 Yes
Operating System cisco adaptive_security_appliance_software < 9.12.4.18 Yes
Operating System cisco adaptive_security_appliance_software < 9.13.1.21 Yes
Operating System cisco adaptive_security_appliance_software < 9.14.2.13 Yes
Operating System cisco adaptive_security_appliance_software < 9.15.1.15 Yes
References