Yury Aleynov

**Name of the Vulnerable Software and Affected Versions** Cisco Secure Access Control System versions prior to 5.8 patch 9 **Description** A vulnerability in Java deserialization used by the affected software could allow an unauthenticated, remote attacker to execute arbitrary commands on an affected device. The issue is due to insecure deserialization of user-supplied content. An attacker could exploit this by sending a crafted serialized Java object, potentially allowing the execution of arbitrary commands on the device with root privileges. **Recommendations** For versions prior to 5.8 patch 9, update to release 5.8 patch 9 or later to resolve the issue. As a temporary workaround, consider restricting access to the Java deserialization functionality to minimize the risk of exploitation.

Name of the Vulnerable Software and Affected Versions: Cisco Secure Access Control Server versions prior to 5.8 patch 9 Description: A vulnerability in the web-based user interface of the Cisco Secure Access Control Server could allow an unauthenticated, remote attacker to gain read access to certain information in the affected system. The issue is due to improper handling of XML External Entities (XXEs) when parsing an XML file. An attacker could exploit this by convincing the administrator of an affected system to import a crafted XML file. Recommendations: For versions prior to 5.8 patch 9, update to version 5.8 patch 9 or later to resolve the issue. As a temporary workaround, consider restricting the import of XML files from untrusted sources to minimize the risk of exploitation.

Name of the Vulnerable Software and Affected Versions: Cisco Secure Access Control System (ACS) versions prior to 5.8 Patch 7 Description: A vulnerability in the ACS Report component of Cisco Secure Access Control System (ACS) could allow an unauthenticated, remote attacker to execute arbitrary commands on an affected system. The issue is due to insufficient validation of the Action Message Format (AMF) protocol. An attacker could exploit this by sending a crafted AMF message that contains malicious code to a targeted user, allowing the execution of arbitrary commands on the ACS device. Recommendations: For versions prior to 5.8 Patch 7, update to Release 5.8 Patch 7 or later to resolve the issue. As a temporary workaround, consider restricting access to the AMF protocol to minimize the risk of exploitation. Avoid using the AMF protocol until the issue is resolved.

Name of the Vulnerable Software and Affected Versions: Cisco Secure Access Control Server versions prior to 5.8 patch 9 Description: A vulnerability in the web-based user interface of the Cisco Secure Access Control Server could allow an unauthenticated, remote attacker to gain read access to certain information in the affected system. The issue is due to improper handling of XML External Entities (XXEs) when parsing an XML file. An attacker could exploit this by convincing the administrator of an affected system to import a crafted XML file. Recommendations: For versions prior to 5.8 patch 9, update to version 5.8 patch 9 or later to resolve the issue. As a temporary workaround, consider restricting the import of XML files from untrusted sources to minimize the risk of exploitation.