CVE-2021-1534

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Summary

CVECVE-2021-1534
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2021-10-06 20:15:00 UTC
Updated2023-11-07 03:28:00 UTC
DescriptionA 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.

Risk And Classification

Problem Types: NVD-CWE-noinfo

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Cisco Asyncos All All All All
Hardware Cisco Email Security Appliance C170 - All All All
Hardware Cisco Email Security Appliance C190 - All All All
Hardware Cisco Email Security Appliance C380 - All All All
Hardware Cisco Email Security Appliance C390 - All All All
Hardware Cisco Email Security Appliance C680 - All All All
Hardware Cisco Email Security Appliance C690 - All All All
Hardware Cisco Email Security Appliance C690x - All All All

References

ReferenceSourceLinkTags
Cisco Email Security Appliance URL Filtering Bypass Vulnerability CISCO tools.cisco.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 317073 Cisco Email Security Appliance (ESA) Uniform Resource Locator (URL) Filtering Bypass Vulnerability (cisco-sa-esa-url-bypass-sGcfsDrp)
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