SB2020012711 - HTTP response splitting in Cisco Web Security Appliance and Cisco Content Security Management Appliance
Published: January 27, 2020
Security Bulletin ID
SB2020012711
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) HTTP response splitting (CVE-ID: CVE-2020-3117)
CWE-ID: CWE-113 - Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting')
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform HTTP splitting attacks.
The vulnerability exists due to insufficient validation of user input in the API Framework. A remote attacker can trick a victim to access a crafted URL, receive a malicious HTTP response and inject arbitrary HTTP headers into valid HTTP responses sent to a user's browser.
Remediation
Install update from vendor's website.