CVE-2021-1534

A vulnerability in the antispam protection mechanisms 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.
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*
OR 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_c380:-:*:*:*:*:*:*:*
cpe:2.3:h:cisco:email_security_appliance_c390:-:*:*:*:*:*:*:*
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:-:*:*:*:*:*:*:*

History

21 Nov 2024, 05:44

Type Values Removed Values Added
References () https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-url-bypass-sGcfsDrp - Vendor Advisory () https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-url-bypass-sGcfsDrp - Vendor Advisory
CVSS v2 : 5.0
v3 : 5.3
v2 : 5.0
v3 : 5.8

Information

Published : 2021-10-06 20:15

Updated : 2024-11-21 05:44


NVD link : CVE-2021-1534

Mitre link : CVE-2021-1534

CVE.ORG link : CVE-2021-1534


JSON object : View

Products Affected

cisco

  • email_security_appliance_c190
  • asyncos
  • email_security_appliance_c680
  • email_security_appliance_c690
  • email_security_appliance_c170
  • email_security_appliance_c390
  • email_security_appliance_c380
  • email_security_appliance_c690x
CWE
CWE-20

Improper Input Validation

NVD-CWE-noinfo