CVE-2023-20057

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2023-20057
A vulnerability in the URL filtering mechanism of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass the URL reputation filters on an affected device. This vulnerability is due to improper processing of URLs. An attacker could exploit this vulnerability by crafting a URL in a particular way. A successful exploit could allow the attacker to bypass the URL reputation filters that are configured for an affected device, which could allow malicious URLs to pass through the device.

5.3 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-url-bypass-WbMQqNJh Vendor Advisory
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:cisco:asyncos:-:*:*:*:*:*:*:*
OR cpe:2.3:h:cisco:email_security_appliance_c160:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:email_security_appliance_c170:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:email_security_appliance_c190:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:email_security_appliance_c370:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:email_security_appliance_c370d:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:email_security_appliance_c380:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:email_security_appliance_c390:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:email_security_appliance_c670:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:email_security_appliance_c680:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:email_security_appliance_c690:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:email_security_appliance_c690x:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:email_security_appliance_x1070:-:*:*:*:*:*:*:*
History

25 Jan 2024, 17:15

Type Values Removed Values Added
Summary A vulnerability in the URL filtering mechanism of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass the URL reputation filters on an affected device. This vulnerability is due to improper processing of URLs. An attacker could exploit this vulnerability by crafting a URL in a particular way. A successful exploit could allow the attacker to bypass the URL reputation filters that are configured for an affected device, which could allow malicious URLs to pass through the device. A vulnerability in the URL filtering mechanism of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass the URL reputation filters on an affected device. This vulnerability is due to improper processing of URLs. An attacker could exploit this vulnerability by crafting a URL in a particular way. A successful exploit could allow the attacker to bypass the URL reputation filters that are configured for an affected device, which could allow malicious URLs to pass through the device.

01 Mar 2023, 08:15

Type Values Removed Values Added
New CVE
Information

Published : 2023-01-20 07:15

Updated : 2024-02-04 23:14

NVD link : CVE-2023-20057

Mitre link : CVE-2023-20057

CVE.ORG link : CVE-2023-20057

JSON object : View

Products Affected

cisco

  • email_security_appliance_c680
  • email_security_appliance_c690x
  • email_security_appliance_x1070
  • email_security_appliance_c390
  • email_security_appliance_c170
  • email_security_appliance_c160
  • email_security_appliance_c370d
  • email_security_appliance_c670
  • email_security_appliance_c380
  • email_security_appliance_c690
  • asyncos
  • email_security_appliance_c190
  • email_security_appliance_c370
CWE
CWE-74

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

CWE-792

Incomplete Filtering of One or More Instances of Special Elements