Vulnerability Description
A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS Software and Cisco IOS XE Software on Catalyst 4500 Series Switches could allow an authenticated, remote attacker to cause a denial of service (DoS) condition. The vulnerability is due to insufficient input validation when the software processes specific SNMP object identifiers. An attacker could exploit this vulnerability by sending a crafted SNMP packet to an affected device. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Note: To exploit this vulnerability by using SNMPv2c or earlier, the attacker must know the SNMP read-only community string for an affected system. To exploit this vulnerability by using SNMPv3, the attacker must know the user credentials for the affected system.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Ios | 12.2\(52\)sg |
| Cisco | Ios Xe | 3.2.0sg |
| Cisco | Catalyst 4503-E | All versions |
| Cisco | Catalyst 4506-E | - |
| Cisco | Catalyst 4507R\+E | - |
| Cisco | Catalyst 4510R\+E | - |
| Oracle | Goldengate Management Pack | 12.2.1.2.0 |
Related Weaknesses (CWE)
References
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sVendor Advisory
- https://www.oracle.com/security-alerts/cpuoct2020.htmlPatchThird Party Advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sVendor Advisory
- https://www.oracle.com/security-alerts/cpuoct2020.htmlPatchThird Party Advisory
FAQ
What is CVE-2020-3235?
CVE-2020-3235 is a vulnerability with a CVSS score of 7.7 (HIGH). A vulnerability in the Simple Network Management Protocol (SNMP) subsystem of Cisco IOS Software and Cisco IOS XE Software on Catalyst 4500 Series Switches could allow an authenticated, remote attacke...
How severe is CVE-2020-3235?
CVE-2020-3235 has been rated HIGH with a CVSS base score of 7.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-3235?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Ios, Cisco Ios Xe, Cisco Catalyst 4503-E, Cisco Catalyst 4506-E, Cisco Catalyst 4507R\+E.