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CVE-2021-1501

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
29/04/2021
Last modified:
07/11/2023

Description

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.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
7.50
Severity 3.x
HIGH
Vector 2.0
AV:N/AC:L/Au:N/C:N/I:N/A:C CVSS v2.0 Severity and Metrics:

Base Score: 7.80 HIGH
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Complete

Base Score 2.0
7.80
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* 6.2.2 (including) 6.4.0.12 (excluding)
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* 6.5.0 (including) 6.6.4 (excluding)
cpe:2.3:a:cisco:firepower_threat_defense:*:*:*:*:*:*:*:* 6.7.0 (including) 6.7.0.2 (excluding)
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* 9.8 (including) 9.8.4.34 (excluding)
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* 9.9 (including) 9.9.2.85 (excluding)
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* 9.10 (including) 9.12.4.18 (excluding)
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* 9.13 (including) 9.13.1.21 (excluding)
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* 9.14 (including) 9.14.2.13 (excluding)
cpe:2.3:o:cisco:adaptive_security_appliance_software:*:*:*:*:*:*:*:* 9.15 (including) 9.15.1.15 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools