Strix
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CVE-2019-1884

UnknownEPSS 1.51%

Last modified

CVE-2019-1884 is a vulnerability of currently unknown severity. 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. EPSS estimates a 1.51% chance of exploitation in the next 30 days.

Description

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.

Metrics

EPSS Probability
1.51%

71.3th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
CiscoAsyncos>= 10.1, < 10.5.5-005
CiscoAsyncos>= 11.5, < 11.5.2-020
CiscoAsyncos>= 11.7, < 11.7.0-407
CiscoWeb Security Appliance10.1.4-017
CiscoWeb Security Appliance10.5.2-072
CiscoWeb Security Appliance11.5.1-fcs-125
CiscoWeb Security Appliance11.7.0-256

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2019-1884?
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.
How severe is CVE-2019-1884?
Severity scoring for CVE-2019-1884 is pending analysis. The EPSS model estimates a 1.51% probability of exploitation in the next 30 days.
How do I fix CVE-2019-1884?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-1884?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST