CVE-2019-1884: high-severity vulnerability in Cisco Web Security Appliance (WSA)
Cisco Web Security Appliance Web Proxy Denial of Service Vulnerability
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.7epss 1.5%
A vulnerability in the web proxy functionality of Cisco AsyncOS Software for Cisco Web Security Appliance (WSA) could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to insufficient input validation mechanisms for certain fields in HTTP/HTTPS requests sent through an affected device. A successful attacker could exploit this vulnerability by sending a malicious HTTP/HTTPS request through an affected device. An exploit could allow the attacker to force the device to stop processing traffic, resulting in a DoS condition.
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Affected products
Cisco · Cisco Web Security Appliance (WSA)Related CVEs — Cisco Web Security Appliance (WSA)
In the same product, most dangerous first.
CVE-2021-1359MEDIUMCisco Web Security Appliance Privilege Escalation VulnerabilityEPSS 1.9%CVE-2019-1817HIGHCisco Web Security Appliance Malformed Request Denial of Service VulnerabilityEPSS 1.8%CVE-2021-34749MEDIUMMultiple Cisco Products Server Name Identification Data Exfiltration VulnerabilityEPSS 1.7%CVE-2019-1672MEDIUMCisco Web Security Appliance Decryption Policy Bypass VulnerabilityEPSS 1.6%CVE-2021-34698HIGHCisco Web Security Appliance Proxy Service Denial of Service VulnerabilityEPSS 1.4%CVE-2019-1886HIGHCisco Web Security Appliance HTTPS Certificate Denial of Service VulnerabilityEPSS 1.3%