What’s Vulnerable › Vulnerabilities
CVE-2019-1943: Cisco Small Business Series Switches Open Redirect Vulnerability
- Severity: medium (CVSS 6.1 v3.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 9.7% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2019-07-17 · updated 2026-06-17
- Weakness: CWE-601
Description
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 products
- Cisco Sf200-24 Firmware: all versions
- Cisco Sf200-24Fp Firmware: all versions
- Cisco Sf200-24P Firmware: all versions
- Cisco Sf200-48 Firmware: all versions
- Cisco Sf200-48P Firmware: all versions
- Cisco Sf300-08 Firmware: 1.3.7.18
- Cisco Sf300-24 Firmware: 1.3.7.18
- Cisco Sf300-24Mp Firmware: 1.3.7.18
- Cisco Sf300-24P Firmware: 1.3.7.18
- Cisco Sf300-24Pp Firmware: 1.3.7.18
- Cisco Sf300-48 Firmware: 1.3.7.18
- Cisco Sf300-48P Firmware: 1.3.7.18
- Cisco Sf300-48Pp Firmware: 1.3.7.18
- Cisco Sf302-08 Firmware: 1.3.7.18
- Cisco Sf302-08Mp Firmware: 1.3.7.18
- Cisco Sf302-08Mpp Firmware: 1.3.7.18
- Cisco Sf302-08P Firmware: 1.3.7.18
- Cisco Sf302-08Pp Firmware: 1.3.7.18
- Cisco Sf500-24 Firmware: all versions
- Cisco Sf500-24P Firmware: all versions
- Cisco Sf500-48 Firmware: all versions
- Cisco Sf500-48P Firmware: all versions
- Cisco Sg200-08 Firmware: all versions
- Cisco Sg200-08P Firmware: all versions
- Cisco Sg200-10Fp Firmware: all versions
- Cisco Sg200-18 Firmware: all versions
- Cisco Sg200-26 Firmware: all versions
- Cisco Sg200-26Fp Firmware: all versions
- Cisco Sg200-26P Firmware: all versions
- Cisco Sg200-50 Firmware: all versions
References
- http://www.securityfocus.com/bid/109288
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190717-sbss-redirect
- http://www.securityfocus.com/bid/109288
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190717-sbss-redirect
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