Headline
CVE-2022-20772: Cisco Security Advisory: Cisco Email Security Appliance and Cisco Secure Email and Web Manager HTTP Response Header Injection Vulnerability
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.
When considering software upgrades, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories page, to determine exposure and a complete upgrade solution.
In all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.
Fixed Releases
At the time of publication, the release information in the following table(s) was accurate. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information.
The left column lists Cisco software releases, and the right column indicates whether a release was affected by the vulnerability that is described in this advisory and which release included the fix for this vulnerability.
ESA: CSCwa84908
Cisco ESA Release
First Fixed Release
13.5.1
Migrate to a fixed release.
14.0
14.0.3-015
14.1
Migrate to a fixed release.
14.2
14.2.1-015
14.3
14.3.0-0231
1. This release is for cloud-based products.
Secure Email and Web Manager: CSCvz24026
Cisco Secure Email and Web Manager Release
First Fixed Release
14.2
14.2.0-217
14.3
14.3.0-1151
1. This release is for cloud-based products.
The Cisco Product Security Incident Response Team (PSIRT) validates only the affected and fixed release information that is documented in this advisory.