Vulnerability in Cisco Web Security Appliance (Wsa)
CVE-2020-3117
A vulnerability in the API Framework of Cisco AsyncOS for Cisco Web Security Appliance (WSA) and Cisco Content Security Management Appliance (SMA) could allow an unauthenticated, remote attacker to inject crafted HTTP headers in the web server's response. The vulnerability is due to insufficient validation of user input. An attacker could exploit this vulnerability by persuading a user to access a crafted URL and receive a malicious HTTP response. A successful exploit could allow the attacker to inject arbitrary HTTP headers into valid HTTP responses sent to a user's browser.
EPSS: 0.009 (58.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N.
Affected products
- Cisco Web Security Appliance (Wsa) — versions n/a
- Cisco Content_security_management_appliance
- Cisco Web_security_appliance — versions 11.8.0-382, 12.0.1-268
Weakness classification (CWE)
References
- psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-3117?
- CVE-2020-3117 is a medium-severity vulnerability in Cisco Web Security Appliance (Wsa), classified under HTTP Response Splitting. CVSS score: 4.7/10. Published 2020-09-23.
- How severe is CVE-2020-3117?
- Medium severity. CVSS v3 base score is 4.7 out of 10.