CVE-2019-1943 (sf200-24_firmware, sf200-24fp_firmware, sf200-24p_firmware, sf200-48_firmware, sf200-48p_firmware, sf300-08_firmware, sf300-24_firmware, sf300-24mp_firmware, sf300-24p_firmware, sf300-24pp_firmware, sf300-48_firmware, sf300-48p_firmware, sf300-48pp_firmware, sf302-08_firmware, sf302-08mp_firmware, sf302-08mpp_firmware, sf302-08p_firmware, sf302-08pp_firmware, sf500-24_firmware, sf500-24p_firmware, sf500-48_firmware, sf500-48p_firmware, sg200-08_firmware, sg200-08p_firmware, sg200-10fp_firmware, sg200-18_firmware, sg200-26_firmware, sg200-26fp_firmware, sg200-26p_firmware, sg200-50_firmware, sg200-50fp_firmware, sg200-50p_firmware, sg300-10_firmware, sg300-10mp_firmware, sg300-10mpp_firmware, sg300-10p_firmware, sg300-10pp_firmware, sg300-10sfp_firmware, sg300-20_firmware, sg300-28_firmware, sg300-28mp_firmware, sg300-28p_firmware, sg300-28pp_firmware, sg300-52_firmware, sg300-52mp_firmware, sg300-52p_firmware, sg500-28_firmware, sg500-28mpp_firmware, sg500-28p_firmware, sg500-52_firmware, sg500-52mp_firmware, sg500-52p_firmware, sg500x-24_firmware, sg500x-24p_firmware, sg500x-48_firmware, sg500x-48p_firmware, sg500xg-8f8t_firmware)

A vulnerability in the web interface of Cisco Small Business 200, 300, and 500 Series Switches software could allow an unauthenticated, remote attacker to redirect a user to a malicious web page. The vulnerability is due to improper input validation of the parameters of an HTTP request. An attacker could exploit this vulnerability by intercepting a user’s HTTP request and modifying it into a request that causes the web interface to redirect the user to a specific malicious URL. This type of vulnerability is known as an open redirect attack and is used in phishing attacks that get users to unknowingly visit malicious sites.

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