CVE-2022-20772
mediumpriority · track · 21EPSS 0.006 · 49 %ileEURUUSEPSS · scored 2026-10-27
A vulnerability in Cisco Email Security Appliance (ESA) and Cisco Secure Email and Web Manager could allow an unauthenticated, remote attacker to conduct an HTTP response splitting attack. This vulnerability is due to the failure of the application or its environment to properly sanitize input values. An attacker could exploit this vulnerability by injecting malicious HTTP headers, controlling the response body, or splitting the response into multiple responses.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- FixedCisco Secure Emailcisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com - FixedCisco Secure Email and Web Managercisco_csaf
Cisco has released software updates that address this vulnerability.
https://software.cisco.com
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (21)
Products and version ranges known to be affected.
- cisco email security appliance firmware13.5.1 → 14.0.3-015nvdUScpe:2.3:o:cisco:email_security_appliance_firmware:*:*:*:*:*:*:*:*
- cisco email security appliance firmware14.1 → 14.2.1-015nvdUScpe:2.3:o:cisco:email_security_appliance_firmware:*:*:*:*:*:*:*:*
- cisco email security appliance firmware14.3 → 14.3.0-023nvdUScpe:2.3:o:cisco:email_security_appliance_firmware:*:*:*:*:*:*:*:*
- cisco secure email and web manager firmware14.2 → 14.2.0-217nvdUScpe:2.3:o:cisco:secure_email_and_web_manager_firmware:*:*:*:*:*:*:*:*
advisories (1)
Vendor and ecosystem advisories describing this.
- cisco-sa-ESA-HTTP-Inject-nvsycUmRCisco Email Security Appliance and Cisco Secure Email and Web Manager HTTP Response Header Injection Vulnerability2022-11-02csaf · cisco_csafUS
A vulnerability in Cisco Email Security Appliance (ESA) and Cisco Secure Email and Web Manager could allow an unauthenticated, remote attacker to conduct an HTTP response splitting attack. This vulnerability is due to the failure of the application or its environment to properly sanitize input values. An attacker could exploit this vulnerability by injecting malicious HTTP headers, controlling the response body, or splitting the response into multiple responses. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
also known as (4)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (6)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2022-20772/cnnvd
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ESA-HTTP-Inject-nvsycUmRcnnvd
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ESA-HTTP-Inject-nvsycUmRcnnvd
- https://vigilance.fr/vulnerability/Cisco-ESA-SEWM-header-injection-39814cnnvd
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ESA-HTTP-Inject-nvsycUmRenisa_euvd
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ESA-HTTP-Inject-nvsycUmRnvd
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