Cisco Security Advisory
Cisco Secure Email and Web Manager, Secure Email Gateway, and Secure Web Appliance Cross-Site Scripting Vulnerabilities
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CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:X/RL:X/RC:X
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Multiple vulnerabilities in the web-based management interface of Cisco AsyncOS Software for Cisco Secure Email and Web Manager; Secure Email Gateway, formerly Email Security Appliance (ESA); and Secure Web Appliance could allow a remote attacker to conduct a cross-site scripting (XSS) attack against a user of the interface.
For more information about these vulnerabilities, see the Details section of this advisory.
Cisco has released software updates that address these vulnerabilities. There are no workarounds that address these vulnerabilities.
This advisory is available at the following link:
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-esa-sma-wsa-xss-bgG5WHOD
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Vulnerable Products
At the time of publication, CVE-2024-20256 affected the following Cisco products:
- Secure Email and Web Manager, both virtual and hardware appliances
- Secure Web Appliance, both virtual and hardware appliances
At the time of publication, CVE-2024-20257 affected Cisco Secure Email Gateway, both virtual and hardware appliances.
At the time of publication, CVE-2024-20258 affected the following Cisco products:
- Secure Email and Web Manager, both virtual and hardware appliances
- Secure Email Gateway, both virtual and hardware appliances
At the time of publication, CVE-2024-20383 affected Cisco Secure Email and Web Manager, both virtual and hardware appliances.
For information about which Cisco software releases were vulnerable at the time of publication, see the Fixed Software section of this advisory. See the Details section in the bug ID(s) at the top of this advisory for the most complete and current information.
Products Confirmed Not Vulnerable
Only products listed in the Vulnerable Products section of this advisory are known to be affected by this vulnerability.
Cisco has confirmed that CVE-2024-20256 does not affect Cisco Secure Email Gateway, both virtual and hardware appliances.
Cisco has confirmed that CVE-2024-20257 does not affect the following Cisco products:
- Secure Email and Web Manager, both virtual and hardware appliances
- Secure Web Appliance, both virtual and hardware appliances
Cisco has confirmed that CVE-2024-20258 does not affect Cisco Secure Web Appliance, both virtual and hardware appliances.
Cisco has confirmed that CVE-2024-20383 does not affect the following Cisco products:
- Secure Email Gateway, both virtual and hardware appliances
- Secure Web Appliance, both virtual and hardware appliances
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The vulnerabilities are not dependent on one another. Exploitation of one of the vulnerabilities is not required to exploit another vulnerability. In addition, a software release that is affected by one of the vulnerabilities may not be affected by the other vulnerabilities.
Details about the vulnerabilities are as follows:
CVE-2024-20258: Cisco Secure Email and Web Manager and Secure Email Gateway Reflected Cross-Site Scripting Vulnerability
A vulnerability in the web-based management interface of Cisco AsyncOS Software for Cisco Secure Email and Web Manager and Secure Email Gateway could allow an unauthenticated, remote attacker to conduct an XSS attack against a user of the interface.
This vulnerability is due to insufficient validation of user input. An attacker could exploit this vulnerability by persuading a user of an affected interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
Bug ID(s): CSCwf84882, CSCwf93368, CSCwj12619
CVE ID: CVE-2024-20258
Security Impact Rating (SIR): Medium
CVSS Base Score: 6.1
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:NCVE-2024-20256: Cisco Secure Email and Web Manager and Secure Web Appliance Stored Cross-Site Scripting Vulnerability
A vulnerability in the web-based management interface of Cisco AsyncOS Software for Cisco Secure Email and Web Manager and Secure Web Appliance could allow an authenticated, remote attacker to conduct an XSS attack against a user of the interface.
This vulnerability is due to insufficient validation of user input. An attacker could exploit this vulnerability by persuading a user of an affected interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
Bug ID(s): CSCwe91887, CSCwe88788
CVE ID: CVE-2024-20256
Security Impact Rating (SIR): Medium
CVSS Base Score: 4.8
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:NCVE-2024-20257: Cisco Secure Email Gateway Stored Cross-Site Scripting Vulnerability
A vulnerability in the web-based management interface of Cisco AsyncOS Software for Cisco Secure Email Gateway could allow an authenticated, remote attacker to conduct an XSS attack against a user of the interface.
This vulnerability is due to insufficient validation of user input. An attacker could exploit this vulnerability by persuading a user of an affected interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
Bug ID(s): CSCwf73258
CVE ID: CVE-2024-20257
Security Impact Rating (SIR): Medium
CVSS Base Score: 4.8
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:NCVE-2024-20383: Cisco Secure Email and Web Manager Stored Cross-Site Scripting Vulnerability
A vulnerability in the web-based management interface of Cisco AsyncOS Software for Cisco Secure Email and Web Manager could allow an authenticated, remote attacker to conduct an XSS attack against a user of the interface.
This vulnerability is due to insufficient validation of user input. An attacker could exploit this vulnerability by persuading a user of an affected interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive, browser-based information.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
Bug ID(s): CSCwi59618
CVE ID: CVE-2024-20383
Security Impact Rating (SIR): Medium
CVSS Base Score: 4.8
CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
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There are no workarounds that address these vulnerabilities.
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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 tables 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 vulnerabilities that are described in this advisory and which release included the fix for these vulnerabilities.
Secure Email and Web Manager
Cisco AsyncOS Release First Fixed Release 15.0 and earlier Migrate to a fixed release. 15.5 15.5.1-024 Secure Email Gateway
Cisco AsyncOS Release First Fixed Release 14.3 and earlier Migrate to a fixed release. 15.0 15.0.2-034 15.5 15.5.1-055 Secure Web Appliance
Cisco AsyncOS Release First Fixed Release 14.0 and earlier Migrate to a fixed release. 14.5 14.5.2-011 15.0 15.0.0-355
In most cases, the software can be upgraded over the network by using the System Upgrade options in the web interface of the appliance. To upgrade a device by using the web interface, do the following:
- Choose System Administration > System Upgrade.
- Click Upgrade Options.
- Choose Download and Install.
- Choose the release to upgrade to.
- In the Upgrade Preparation area, choose the appropriate options.
- Click Proceed to begin the upgrade. A progress bar displays the status of the upgrade.
After the upgrade is complete, the device reboots.
Cisco Secure Email Cloud Gateway, formerly Cisco Cloud Email Security, includes Cisco Secure Email Gateway 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 Support.
The Cisco Product Security Incident Response Team (PSIRT) validates only the affected and fixed release information that is documented in this advisory.
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The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.
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CVE-2024-20257: This vulnerability was found by Roberto Petrillo of Cisco during internal security testing.
CVE-2024-20256 and CVE-2024-20258: These vulnerabilities were found during internal security testing.
CVE-2024-20383: Cisco would like to thank Ahmad Ashraff of Bastion Security Group for reporting this vulnerability.
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To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.
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Show LessVersion Description Section Status Date 1.1 Added a fixed release for the 15.0 train of Cisco Secure Email Gateway. Fixed Releases Final 2024-JUN-12 1.0 Initial public release. - Final 2024-MAY-15
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