CVE-2020-3533
Last modified
CVE-2020-3533 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. A vulnerability in the Simple Network Management Protocol (SNMP) input packet processor of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected device to restart unexpectedly. The vulnerability is due to a lack of sufficient memory management protections under heavy SNMP polling loads. EPSS estimates a 1.76% chance of exploitation in the next 30 days.
Description
A vulnerability in the Simple Network Management Protocol (SNMP) input packet processor of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause an affected device to restart unexpectedly. The vulnerability is due to a lack of sufficient memory management protections under heavy SNMP polling loads. An attacker could exploit this vulnerability by sending a high rate of SNMP requests to the SNMP daemon through the management interface on an affected device. A successful exploit could allow the attacker to cause the SNMP daemon process to consume a large amount of system memory over time, which could then lead to an unexpected device restart, causing a denial of service (DoS) condition. This vulnerability affects all versions of SNMP.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Secure Firewall Threat Defense | < 6.3.0.6 |
| Cisco | Secure Firewall Threat Defense | >= 6.4.0, < 6.4.0.10 |
| Cisco | Secure Firewall Threat Defense | >= 6.5.0, < 6.5.0.5 |
| Cisco | Secure Firewall Threat Defense | >= 6.6.0, < 6.6.1 |
References
Timeline
- Published
- Last Modified
- Status
- Modified
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