CVE-2023-20215

Summary

CVECVE-2023-20215
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2023-08-03 22:15:00 UTC
Updated2024-01-25 17:15:00 UTC
DescriptionA vulnerability in the scanning engines of Cisco AsyncOS Software for Cisco Secure Web Appliance could allow an unauthenticated, remote attacker to bypass a configured rule, allowing traffic onto a network that should have been blocked. This vulnerability is due to improper detection of malicious traffic when the traffic is encoded with a specific content format. An attacker could exploit this vulnerability by using an affected device to connect to a malicious server and receiving crafted HTTP responses. A successful exploit could allow the attacker to bypass an explicit block rule and receive traffic that should have been rejected by the device.

Risk And Classification

Problem Types: NVD-CWE-noinfo

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Cisco Asyncos 11.7.0-406 All All All
Operating System Cisco Asyncos 11.7.0-418 All All All
Operating System Cisco Asyncos 11.7.1-006 All All All
Operating System Cisco Asyncos 11.7.1-020 All All All
Operating System Cisco Asyncos 11.7.1-049 All All All
Operating System Cisco Asyncos 11.7.2-011 All All All
Operating System Cisco Asyncos 11.8.0-414 All All All
Operating System Cisco Asyncos 11.8.1-023 All All All
Operating System Cisco Asyncos 11.8.3-018 All All All
Operating System Cisco Asyncos 11.8.3-021 All All All
Operating System Cisco Asyncos 12.0.1-268 All All All
Operating System Cisco Asyncos 12.0.3-007 All All All
Operating System Cisco Asyncos 12.5.1-011 All All All
Operating System Cisco Asyncos 12.5.2-007 All All All
Operating System Cisco Asyncos 12.5.4-005 All All All
Operating System Cisco Asyncos 12.5.5-004 All All All
Operating System Cisco Asyncos 14.0.2-012 All All All
Operating System Cisco Asyncos 14.0.3-014 All All All
Operating System Cisco Asyncos 14.0.4-005 All All All
Operating System Cisco Asyncos 14.5.0-498 All All All
Operating System Cisco Asyncos 14.5.1-008 All All All
Operating System Cisco Asyncos 14.5.1-016 All All All
Hardware Cisco S195 - All All All
Hardware Cisco S395 - All All All
Hardware Cisco S695 - All All All
Hardware Cisco Web Security Appliance S170 - All All All
Hardware Cisco Web Security Appliance S190 - All All All
Hardware Cisco Web Security Appliance S380 - All All All
Hardware Cisco Web Security Appliance S390 - All All All
Hardware Cisco Web Security Appliance S680 - All All All
Hardware Cisco Web Security Appliance S690 - All All All
Hardware Cisco Web Security Appliance S690x - All All All

References

ReferenceSourceLinkTags
Cisco Secure Web Appliance Content Encoding Filter Bypass Vulnerability MISC sec.cloudapps.cisco.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 317338 Cisco Secure Web Appliance Content Encoding Filter Bypass Vulnerability (cisco-sa-wsa-bypass-vXvqwzsj)
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

CVE.report and Source URL Uptime Status status.cve.report