#cisco

This whitepaper demonstrates leveraging cross site scripting and polyglot exploitation in an exploit called COOLHANDLUKE to violate network segmentation / layer 2 VLAN policies while routing and sending a file between isolated, air gapped networks without a router. This issue affects HPE Procurve, Aruba Networks, Cisco, Dell, and Netgear products.

In this whitepaper, the author demonstrates abusing persistent cross site scripting and polyglot payloads can allow for robust protocol creation similar to COOLHANDLUKE and allows an attacker to exfiltrate, encapsulate, and tunnel their malicious traffic between IPv4 and IPv6 networks without a router. The author calls the technique and protocol "DIRECTIVEFOUR". This issue affects Cisco SMB and Sx Series switches.

A vulnerability in the health check RPM of Cisco IOS XR Software could allow an unauthenticated, remote attacker to access the Redis instance that is running within the NOSi container. This vulnerability exists because the health check RPM opens TCP port 6379 by default upon activation. An attacker could exploit this vulnerability by connecting to the Redis instance on the open port. A successful exploit could allow the attacker to write to the Redis in-memory database, write arbitrary files to the container filesystem, and retrieve information about the Redis database. Given the configuration of the sandboxed container that the Redis instance runs in, a remote attacker would be unable to execute remote code or abuse the integrity of the Cisco IOS XR Software host system.

Multiple vulnerabilities in the API and web-based management interfaces of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated, remote attacker to write files or disclose sensitive information on an affected device. For more information about these vulnerabilities, see the Details section of this advisory.

A file write vulnerability exists in the OAS Engine SecureTransferFiles functionality of Open Automation Software OAS Platform V16.00.0112. A specially-crafted series of network requests can lead to remote code execution. An attacker can send a sequence of requests to trigger this vulnerability.

An improper authentication vulnerability exists in the REST API functionality of Open Automation Software OAS Platform V16.00.0121. A specially-crafted series of HTTP requests can lead to unauthenticated use of the REST API. An attacker can send a series of HTTP requests to trigger this vulnerability.

An information disclosure vulnerability exists in the OAS Engine SecureBrowseFile functionality of Open Automation Software OAS Platform V16.00.0112. A specially-crafted network request can lead to a disclosure of sensitive information. An attacker can send a network request to trigger this vulnerability.

A denial of service vulnerability exists in the OAS Engine SecureConfigValues functionality of Open Automation Software OAS Platform V16.00.0112. A specially-crafted network request can lead to loss of communications. An attacker can send a network request to trigger this vulnerability.

An external config control vulnerability exists in the OAS Engine SecureAddUser functionality of Open Automation Software OAS Platform V16.00.0112. A specially-crafted series of network requests can lead to the creation of an OAS user account. An attacker can send a sequence of requests to trigger this vulnerability.

An external config control vulnerability exists in the OAS Engine SecureAddSecurity functionality of Open Automation Software OAS Platform V16.00.0112. A specially-crafted series of network requests can lead to the creation of a custom Security Group. An attacker can send a sequence of requests to trigger this vulnerability.