This vulnerability is due to a lack of parameter validation for TFTP configuration parameters. The attacker must have valid administrative credentials on the device. There are no workarounds that address this vulnerability.ĬVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:HĬVE-2021-1541: Cisco Small Business 220 Series Smart Switches Remote Command Execution VulnerabilityĪ vulnerability in the web-based management interface of Cisco Small Business 220 Series Smart Switches could allow an authenticated, remote attacker to execute arbitrary commands as a root user on the underlying operating system. A successful exploit could allow the attacker take actions within the management interface with privileges up to the level of the administrative user.Ĭisco has released software updates that address this vulnerability.
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An attacker could exploit this vulnerability by using reconnaissance methods to determine how to craft a valid session identifier. This vulnerability is due to the use of weak session management for session identifier values. The attacker could obtain the privileges of the highjacked session account, which could include administrative privileges on the device.
In addition, a software release that is affected by one of the vulnerabilities may not be affected by the other vulnerabilities.ĭetails about the vulnerabilities are as follows:ĬVE-2021-1542: Cisco Small Business 220 Series Smart Switches Weak Session Management VulnerabilityĪ vulnerability in session management for the web-based management interface of Cisco Small Business 220 Series Smart Switches could allow an unauthenticated, remote attacker to bypass authentication protections and gain unauthorized access to the interface.
Exploitation of one of the vulnerabilities is not required to exploit another vulnerability. The vulnerabilities are not dependent on one another.