Headline
CVE-2022-20942: Cisco Security Advisory: Cisco Email Security Appliance, Cisco Secure Email and Web Manager, and Cisco Secure Web Appliance Information Disclosure Vulnerability
A vulnerability in the web-based management interface of Cisco Email Security Appliance (ESA), Cisco Secure Email and Web Manager, and Cisco Secure Web Appliance, formerly known as Cisco Web Security Appliance (WSA), could allow an authenticated, remote attacker to retrieve sensitive information from an affected device, including user credentials. This vulnerability is due to weak enforcement of back-end authorization checks. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to obtain confidential data that is stored on the affected device.
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
Cisco AsyncOS Release
First Fixed Release
12.0 and earlier1
Migrate to a fixed release.
13.0
Migrate to a fixed release.
14.0
Migrate to a fixed release.
14.1
Migrate to a fixed release.
14.2
14.2.1-015
14.3
14.3.0-0232
1. Cisco AsyncOS Software for Cisco ESA releases 12 and earlier have reached end of software maintenance. Customers are advised to migrate to a supported release that includes the fix for this vulnerability.
2. This release is for cloud-based products.
Secure Email and Web Manager
Cisco AsyncOS Release
First Fixed Release
12.0 and earlier1
Migrate to a fixed release.
13.0
Migrate to a fixed release.
14.0
Migrate to a fixed release.
14.1
Migrate to a fixed release.
14.2
14.2.0-217
14.3
14.3.0-1152
1. Cisco AsyncOS Software for Cisco Secure Email and Web Manager releases 12 and earlier have reached end of software maintenance. Customers are advised to migrate to a supported release that includes the fix for this vulnerability.
2. This release is for cloud-based products.
Secure Web Appliance
Cisco AsyncOS Release
First Fixed Release
11.0 and earlier1
Migrate to a fixed release.
12.0
12.0.5-011
12.5
12.5.4-005
14.0
14.0.2-012
14.5
Not vulnerable.
1. Cisco AsyncOS Software for Cisco Secure Web Appliance releases 11 and earlier have reached end of software maintenance. Customers are advised to migrate to a supported release that includes the fix for this vulnerability.
Cisco Cloud Email Security (CES) includes Cisco ESA and Cisco Secure Email and Web Manager devices as part of the service solution. Cisco provides regular maintenance of the products included in this solution. Customers can also request a software upgrade by contacting Cisco CES support.
The Cisco Product Security Incident Response Team (PSIRT) validates only the affected and fixed release information that is documented in this advisory.