CVE-2019-1943: Cisco Small Business Series Switches Open Redirect Vulnerability
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.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2019-1943?
The severity of CVE-2019-1943 is classified as Medium due to the potential for remote exploitation without authentication.
How do I fix CVE-2019-1943?
To fix CVE-2019-1943, update the affected Cisco Small Business switch firmware to a version that addresses this vulnerability.
Which devices are affected by CVE-2019-1943?
CVE-2019-1943 affects various models of Cisco Small Business 200, 300, and 500 Series Switches running vulnerable firmware versions.
What kind of attack can exploit CVE-2019-1943?
CVE-2019-1943 can be exploited by an unauthenticated remote attacker to redirect users to malicious web pages.
Is there a workaround for CVE-2019-1943 if I cannot apply the patch immediately?
Currently, there are no specific workarounds for CVE-2019-1943; applying the firmware update is strongly recommended.