Cisco Email Security Appliance MP3 Content Filter Bypass Vulnerability

A vulnerability in the MP3 detection engine of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass configured content filters on the device.

The vulnerability is due to improper validation of certain MP3 file types. An attacker could exploit this vulnerability by sending a crafted MP3 file through the targeted device. A successful exploit could allow the attacker to bypass configured content filters that would normally drop the email.

Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191120-esa-mp3-bypass

Security Impact Rating: Medium

CVE: CVE-2019-15971

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Cisco Small Business SPA500 Series IP Phones Local Script Execution Vulnerability

A vulnerability in Cisco Small Business SPA500 Series IP Phones could allow a physically proximate attacker to execute arbitrary commands on the device.

The vulnerability is due to the presence of development testing and verification scripts that remained on the device. An attacker could exploit this vulnerability by accessing the physical interface of a device and inserting a USB storage device. A successful exploit could allow the attacker to execute scripts on the device in an elevated security context.

There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191106-spa500-script

Security Impact Rating: Medium

CVE: CVE-2019-15959

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Cisco TelePresence Collaboration Endpoint, TelePresence Codec, and RoomOS Software Privilege Escalation Vulnerability

A vulnerability in the CLI of Cisco TelePresence Collaboration Endpoint (CE), Cisco TelePresence Codec (TC), and Cisco RoomOS Software could allow an authenticated, remote attacker to escalate privileges to an unrestricted user of the restricted shell.

The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by including specific arguments when opening an SSH connection to an affected device. A successful exploit could allow the attacker to gain unrestricted user access to the restricted shell of an affected device.

Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191106-telepres-roomos-privesc

Security Impact Rating: High

CVE: CVE-2019-15288

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Cisco Aironet Access Points Bridge Protocol Data Unit Port Disable Denial of Service Vulnerability

A vulnerability in the bridge protocol data unit (BPDU) forwarding functionality of Cisco Aironet Access Points (APs) could allow an unauthenticated, adjacent attacker to cause an AP port to go into an error disabled state.

The vulnerability occurs because BPDUs received from specific wireless clients are forwarded incorrectly. An attacker could exploit this vulnerability on the wireless network by sending a steady stream of crafted BPDU frames. A successful exploit could allow the attacker to cause a limited denial of service (DoS) attack because an AP port could go offline.

Cisco has released software updates that address this vulnerability. There are workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191016-airo-dos

Security Impact Rating: Medium

CVE: CVE-2019-15265

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Cisco TelePresence Collaboration Endpoint Software Privilege Escalation Vulnerability

A vulnerability in the CLI of Cisco TelePresence Collaboration Endpoint (CE) Software could allow an authenticated, local attacker to execute code with root privileges.

The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by authenticating as the remote support user and sending malicious traffic to a listener who is internal to the device. A successful exploit could allow the attacker to execute commands with root privileges.

Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191016-telepres-escalation

Security Impact Rating: Medium

CVE: CVE-2019-15277

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