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CVE-2021-1451
CVE ID
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CVE-2021-1451
MITRE ATT&CK
Collection
Command and Control
Credential Access
Defense Evasion
Discovery
Execution
Exfiltration
Impact
Initial Access
Lateral Movement
Persistence
Privilege Escalation
Topic Tags
Description
A vulnerability in the Easy Virtual Switching System (VSS) feature of Cisco IOS XE Software for Cisco Catalyst 4500 Series Switches and Cisco Catalyst 4500-X Series Switches could allow an unauthenticated, remote attacker to execute arbitrary code on the underlying Linux operating system of an affected device. The vulnerability is due to incorrect boundary checks of certain values in Easy VSS protocol packets that are destined for an affected device. An attacker could exploit this vulnerability by sending crafted Easy VSS protocol packets to UDP port 5500 while the affected device is in a specific state. When the crafted packet is processed, a buffer overflow condition may occur. A successful exploit could allow the attacker to trigger a denial of service (DoS) condition or execute arbitrary code with root privileges on the underlying Linux operating system of the affected device.
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CVSS V3 Severity and Metrics
General Information
Vendors
- cisco
Products
- ios xe 15.2(7)e,
- ios xe 16.11.2,
- ios xe 16.12.5a,
- ios xe 17.3.1,
- ios xe 3.10.0ce,
- ios xe 3.10.0e,
- ios xe 3.10.1ae,
- ios xe 3.10.1e,
- ios xe 3.10.1se,
- ios xe 3.10.2e,
- ios xe 3.10.3e,
- ios xe 3.11.0e,
- ios xe 3.11.1ae,
- ios xe 3.11.1e,
- ios xe 3.11.2ae,
- ios xe 3.11.2e,
- ios xe 3.11.3ae,
- ios xe 3.11.3e,
- ios xe 3.6.0be,
- ios xe 3.6.0e,
- ios xe 3.6.10e,
- ios xe 3.6.1e,
- ios xe 3.6.2e,
- ios xe 3.6.3e,
- ios xe 3.6.4e,
- ios xe 3.6.5ae,
- ios xe 3.6.5be,
- ios xe 3.6.5e,
- ios xe 3.6.6e,
- ios xe 3.6.7e,
- ios xe 3.6.8e,
- ios xe 3.6.9e,
- ios xe 3.7.0e,
- ios xe 3.7.1e,
- ios xe 3.7.2e,
- ios xe 3.7.3e,
- ios xe 3.7.4e,
- ios xe 3.7.5e,
- ios xe 3.8.0e,
- ios xe 3.8.10e,
- ios xe 3.8.1e,
- ios xe 3.8.2e,
- ios xe 3.8.3e,
- ios xe 3.8.4e,
- ios xe 3.8.5ae,
- ios xe 3.8.5e,
- ios xe 3.8.6e,
- ios xe 3.8.7e,
- ios xe 3.8.8e,
- ios xe 3.8.9e,
- ios xe 3.9.0e,
- ios xe 3.9.1e,
- ios xe 3.9.2be,
- ios xe 3.9.2e
References
Additional Info
Technical Analysis
Report as Emergent Threat Response
Report as Exploited in the Wild
CVE ID
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