The other critical warning came for Cisco Mobility Express. In that wireless LAN product, the vulnerability is due to improper implementation of authentication for accessing certain web pages using the GUI interface. “An attacker could exploit this vulnerability by sending a crafted HTTP request to the web interface of the affected system. A successful exploit could allow the attacker to bypass authentication and perform unauthorized configuration changes or issue control commands to the affected device. This vulnerability affects Cisco Mobility Express 1800 Series Access Points running a software version prior to 18.104.22.168,” Cisco wrote in the advisory.
Cisco said it has released software updates that address this problem.
The High Alert products included:
Cisco wrote that a vulnerability in the mesh code of Cisco Wireless LAN Controller (WLC) software could allow an unauthenticated, remote attacker to impersonate a WLC in a meshed topology. The vulnerability is due to insufficient authentication of the parent access point in a mesh configuration. An attacker could exploit this vulnerability by forcing the target system to disconnect from the correct parent access point and reconnect to a rogue access point owned by the attacker. An exploit could allow the attacker to control the traffic flowing through the impacted access point or take full control of the target system. Cisco has released software updates that address this vulnerability. Note that additional configuration is needed in addition to upgrading to a fixed release. There are no workarounds that address this vulnerability.
A vulnerability in the Client Manager Server of Cisco Workload Automation and Cisco Tidal Enterprise Scheduler could allow an unauthenticated, remote attacker to retrieve any file from the Client Manager Server. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending a crafted URL to the Client Manager Server. An exploit could allow the attacker to retrieve any file from the Cisco Workload Automation or Cisco Tidal Enterprise Scheduler Client Manager Server. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability, Cisco stated.
A privilege escalation vulnerability in the Secure Shell (SSH) subsystem in the StarOS operating system for Cisco ASR 5000 Series, ASR 5500 Series, ASR 5700 Series devices, and Cisco Virtualized Packet Core could allow an authenticated, remote attacker to gain unrestricted, root shell access. The vulnerability is due to missing input validation of parameters passed during SSH or SFTP login. An attacker could exploit this vulnerability by providing crafted user input to the SSH or SFTP command-line interface (CLI) during SSH or SFTP login. An exploit could allow an authenticated attacker to gain root privileges access on the router. Only traffic directed to the affected system can be used to exploit this vulnerability. This vulnerability can be triggered via both IPv4 and IPv6 traffic. An established TCP connection toward Port 22, the SSH default port, is needed to perform the attack. The attacker must have valid credentials to login to the system via SSH or SFTP. Cisco has released software updates that address this vulnerability, Cisco wrote.
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