CVE-2018-0353

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Summary

CVECVE-2018-0353
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2018-06-07 12:29:00 UTC
Updated2019-10-09 23:31:00 UTC
DescriptionA vulnerability in traffic-monitoring functions in Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to circumvent Layer 4 Traffic Monitor (L4TM) functionality and bypass security protections. The vulnerability is due to a change in the underlying operating system software that is responsible for monitoring affected traffic. An attacker could exploit this vulnerability by sending crafted IP packets to an affected device. A successful exploit could allow the attacker to pass traffic through the device, which the WSA was configured to deny. This vulnerability affects both IPv4 and IPv6 traffic. This vulnerability affects Cisco AsyncOS versions for WSA on both virtual and hardware appliances running any release of the 10.5.1, 10.5.2, or 11.0.0 WSA Software. The WSA is vulnerable if it is configured for L4TM. Cisco Bug IDs: CSCvg78875.

Risk And Classification

Problem Types: NVD-CWE-noinfo

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Cisco Web Security Appliance 10.5.1 All All All
Application Cisco Web Security Appliance 10.5.1-296 All All All
Application Cisco Web Security Appliance 10.5.2 All All All
Application Cisco Web Security Appliance 11.0.0 All All All
Application Cisco Web Security Appliance 11.5.0-fcs-442 All All All
Application Cisco Web Security Appliance 10.5.1 All All All
Application Cisco Web Security Appliance 10.5.1-296 All All All
Application Cisco Web Security Appliance 10.5.2 All All All
Application Cisco Web Security Appliance 11.0.0 All All All
Application Cisco Web Security Appliance 11.5.0-fcs-442 All All All

References

ReferenceSourceLinkTags
Cisco Web Security Appliance Layer 4 Traffic Monitor Security Bypass Vulnerability CONFIRM tools.cisco.com Vendor Advisory
Malformed Request BID www.securityfocus.com Third Party Advisory, VDB Entry
Cisco Web Security Appliance Traffic Monitoring Bug Lets Remote Users Bypass Layer 4 Access Restrictions on the Target System - SecurityTracker SECTRACK www.securitytracker.com Third Party Advisory, VDB Entry
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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