CVE-2021-34794
MediumCVSS 5.3Exploitation Probability (EPSS)
Elevated risk57th percentile - higher than 57% of all known CVEs
Summary
A vulnerability in the SNMPv3 access control functionality of Cisco ASA and FTD Software could allow an unauthenticated, remote attacker to query SNMP data. This is due to ineffective access control. An attacker could send an SNMPv3 query from a host not permitted by the ACL and retrieve information if valid credentials are held.
Risk Assessment
The risk is the potential for unauthorized reading of device information, potentially leading to disclosure of sensitive configuration data.
Recommendation
It is recommended to update the software to a patched version, strengthen SNMPv3 access control lists, and monitor queries.
Original NVD description (English source)
A vulnerability in the Simple Network Management Protocol version 3 (SNMPv3) access control functionality of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to query SNMP data. This vulnerability is due to ineffective access control. An attacker could exploit this vulnerability by sending an SNMPv3 query to an affected device from a host that is not permitted by the SNMPv3 access control list. A successful exploit could allow the attacker to send an SNMP query to an affected device and retrieve information from the device. The attacker would need valid credentials to perform the SNMP query.