Category Archives: Cisco

Cisco

Cisco ASR 9000 Series Routers Line Card IP Version 4 Denial of Service Vulnerability

Cisco 9000 Series Aggregation Services Routers (ASR) running Cisco IOS XR Software version 4.1.0 contain a vulnerability that may cause a network processor in a line card to lock up while processing an IP version 4 (IPv4) packet. As a consequence of the network processor lockup, the line card that is processing the offending packet will automatically reload. Cisco has released a free software maintenance upgrade (SMU) to address this vulnerability. There are no workarounds for this vulnerability.

Cisco SA 500 Series Security Appliances Web Management Interface Vulnerabilities

Cisco SA 500 Series Security Appliances are affected by two vulnerabilities on their web-based management interface. An attacker must have valid credentials for an affected device to exploit one vulnerability; exploitation of the other does not require authentication. Both vulnerabilities can be exploited over the network. Cisco has released free software updates that address these vulnerabilities. Workarounds that mitigate these vulnerabilities are available.

Multiple Vulnerabilities in Cisco AnyConnect Secure Mobility Client

The Cisco AnyConnect Secure Mobility Client, previously known as the Cisco AnyConnect VPN Client, is affected by multiple vulnerabilities. Arbitrary Program Execution Vulnerability Local Privilege Escalation Vulnerability Cisco has released free software updates that address these vulnerabilities. There are no workarounds for the vulnerabilities described in this advisory.

Cisco Content Services Gateway Denial of Service Vulnerability

A denial of service (DoS) vulnerability exists in the Cisco Content Services Gateway – Second Generation, that runs on the Cisco Service and Application Module for IP (SAMI). An unauthenticated, remote attacker could exploit this vulnerability by sending a series of crafted ICMP packets to an affected device. Exploitation could cause the device to reload. There are no workarounds available to mitigate exploitation of this vulnerability other than blocking ICMP traffic destined to the affected device.

Multiple Vulnerabilities in Cisco Unified IP Phones 7900 Series

Cisco Unified IP Phones 7900 Series devices, also known as TNP phones, are affected by three vulnerabilities that could allow an attacker to elevate privileges, change phone configurations, disclose sensitive information, or load unsigned software. These three vulnerabilities are classified as two privilege escalation vulnerabilities and one signature bypass vulnerability.

Default Credentials Vulnerability in Cisco Network Registrar

Cisco Network Registrar Software Releases prior to 7.2 contain a default password for the administrative account. During the initial installation, users are not forced to change this password, allowing it to persist after the installation. An attacker who is aware of this vulnerability could authenticate with administrative privileges and arbitrarily change the configuration of Cisco Network Registrar.