CVE-2022-20952

A vulnerability in the scanning engines of Cisco AsyncOS Software for Cisco Secure Web Appliance, formerly known as Cisco Web Security Appliance (WSA), could allow an unauthenticated, remote attacker to bypass a configured rule, thereby allowing traffic onto a network that should have been blocked. This vulnerability exists because malformed, encoded traffic is not properly detected. An attacker could exploit this vulnerability by connecting through an affected device to a malicious server and receiving malformed 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.
Configurations

Configuration 1 (hide)

AND
OR cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*
cpe:2.3:o:cisco:asyncos:14.5.0:*:*:*:*:*:*:*
OR cpe:2.3:h:cisco:s195:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:s395:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:s695:-:*:*:*:*:*:*:*

History

21 Nov 2024, 06:43

Type Values Removed Values Added
References () https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wsa-bypass-bwBfugek - Vendor Advisory () https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wsa-bypass-bwBfugek - Vendor Advisory

07 Nov 2023, 03:43

Type Values Removed Values Added
Summary A vulnerability in the scanning engines of Cisco AsyncOS Software for Cisco Secure Web Appliance, formerly known as Cisco Web Security Appliance (WSA), could allow an unauthenticated, remote attacker to bypass a configured rule, thereby allowing traffic onto a network that should have been blocked. This vulnerability exists because malformed, encoded traffic is not properly detected. An attacker could exploit this vulnerability by connecting through an affected device to a malicious server and receiving malformed 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. A vulnerability in the scanning engines of Cisco AsyncOS Software for Cisco Secure Web Appliance, formerly known as Cisco Web Security Appliance (WSA), could allow an unauthenticated, remote attacker to bypass a configured rule, thereby allowing traffic onto a network that should have been blocked. This vulnerability exists because malformed, encoded traffic is not properly detected. An attacker could exploit this vulnerability by connecting through an affected device to a malicious server and receiving malformed 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.

Information

Published : 2023-03-01 08:15

Updated : 2024-11-21 06:43


NVD link : CVE-2022-20952

Mitre link : CVE-2022-20952

CVE.ORG link : CVE-2022-20952


JSON object : View

Products Affected

cisco

  • s395
  • s195
  • s695
  • asyncos
CWE
CWE-20

Improper Input Validation

NVD-CWE-noinfo