CVE-2019-1977 Cisco Nexus 9000 Series Fabric Switches ACI Mode Border Leaf Endpoint Learning Vulnerability

A vulnerability within the Endpoint Learning feature of Cisco Nexus 9000 Series Switches running in Application Centric Infrastructure ACI mode could allow an unauthenticated, remote attacker to cause a denial of service DoS condition on an endpoint device in certain circumstances. The...

Cisco Releases Security Updates for Multiple Products

Cisco has released security updates to address vulnerabilities in multiple Cisco products. A remote attacker could exploit some of these vulnerabilities to take control of an affected system. The Cybersecurity and Infrastructure Security Agency CISA encourages users and administrators to review t...

Cisco Nexus 9000 Series Fabric Switches Buffer Overflow Vulnerability

Cisco Nexus 9000 Series Fabric Switches is a 9000 series fiber optic switch from Cisco USA. A buffer overflow vulnerability exists in the LLDP subsystem in Cisco Nexus 9000 Series Switch Software ACI Mode versions prior to 13.27f and 14.x. The vulnerability stems from a program's failure to...

CVE-2019-1901

A vulnerability in the Link Layer Discovery Protocol LLDP subsystem of Cisco Nexus 9000 Series Application Centric Infrastructure ACI Mode Switch Software could allow an adjacent, unauthenticated attacker to cause a denial of service DoS condition or execute arbitrary code with root privileges. T...

Buffer overflow

A vulnerability in the Link Layer Discovery Protocol LLDP subsystem of Cisco Nexus 9000 Series Application Centric Infrastructure ACI Mode Switch Software could allow an adjacent, unauthenticated attacker to cause a denial of service DoS condition or execute arbitrary code with root privileges. T...

CVE-2019-1901 Cisco Nexus 9000 Series ACI Mode Switch Software Link Layer Discovery Protocol Buffer Overflow Vulnerability

A vulnerability in the Link Layer Discovery Protocol LLDP subsystem of Cisco Nexus 9000 Series Application Centric Infrastructure ACI Mode Switch Software could allow an adjacent, unauthenticated attacker to cause a denial of service DoS condition or execute arbitrary code with root privileges. T...

CVE-2019-1901

Cisco Nexus 9000 Series ACI Mode Switch Software contains a LLDP-related buffer overflow (CVE-2019-1901) due to improper TLV field input validation. Affected on Nexus 9000 Fabric Switches in ACI mode running before 13.2(7f) or any 14.x release. Exploitation requires a directly connected interface...

CVE-2019-1901 Cisco Nexus 9000 Series ACI Mode Switch Software Link Layer Discovery Protocol Buffer Overflow Vulnerability

A vulnerability in the Link Layer Discovery Protocol LLDP subsystem of Cisco Nexus 9000 Series Application Centric Infrastructure ACI Mode Switch Software could allow an adjacent, unauthenticated attacker to cause a denial of service DoS condition or execute arbitrary code with root privileges. T...

Cisco Nexus 9000 Series ACI Mode Switch Software Link Layer Discovery Protocol Buffer Overflow Vulnerability

A vulnerability in the Link Layer Discovery Protocol LLDP subsystem of Cisco Nexus 9000 Series Application Centric Infrastructure ACI Mode Switch Software could allow an adjacent, unauthenticated attacker to cause a denial of service DoS condition or execute arbitrary code with root privileges. T...

Cisco Nexus 9000 Series Fabric Switches ACI Mode Fabric Infrastructure VLAN Unauthorized Access Vulnerability

According to its self-reported version, the Cisco NX-OS Software in ACI mode is affected by a security bypass vulnerability. An unauthenticated, adjacent attacker could exploit this vulnerability to connect an unauthorized server to the highly privileged infrastructure VLAN. Please see the includ...

CVE-2019-1890 Cisco Nexus 9000 Series Fabric Switches ACI Mode Fabric Infrastructure VLAN Unauthorized Access Vulnerability

A vulnerability in the fabric infrastructure VLAN connection establishment of the Cisco Nexus 9000 Series Application Centric Infrastructure ACI Mode Switch Software could allow an unauthenticated, adjacent attacker to bypass security validations and connect an unauthorized server to the...

CVE-2019-1890

CVE-2019-1890 affects Cisco Nexus 9000 Series Fabric Switches in ACI mode. The issue lies in the LLDP setup during infrastructure VLAN formation, where insufficient security requirements allow an unauthenticated, adjacent attacker to bypass validations and connect an unauthorized server to the in...

CVE-2019-1836

A vulnerability in the system shell for Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure ACI mode could allow an authenticated, local attacker to use symbolic links to overwrite system files. These system files may be sensitive and should not be overwritable by non-ro...

CVE-2019-1803

A vulnerability in the filesystem management for the Cisco Nexus 9000 Series Application Centric Infrastructure ACI Mode Switch Software could allow an authenticated, local attacker with administrator rights to gain elevated privileges as the root user on an affected device. The vulnerability is...

Command injection

A vulnerability in the filesystem management for the Cisco Nexus 9000 Series Application Centric Infrastructure ACI Mode Switch Software could allow an authenticated, local attacker with administrator rights to gain elevated privileges as the root user on an affected device. The vulnerability is...

CVE-2019-1804 Cisco Nexus 9000 Series Fabric Switches Application Centric Infrastructure Mode Default SSH Key Vulnerability

A vulnerability in the SSH key management for the Cisco Nexus 9000 Series Application Centric Infrastructure ACI Mode Switch Software could allow an unauthenticated, remote attacker to connect to the affected system with the privileges of the root user. The vulnerability is due to the presence of...

CVE-2019-1803 Cisco Nexus 9000 Series Fabric Switches Application Centric Infrastructure Mode Root Privilege Escalation Vulnerability

A vulnerability in the filesystem management for the Cisco Nexus 9000 Series Application Centric Infrastructure ACI Mode Switch Software could allow an authenticated, local attacker with administrator rights to gain elevated privileges as the root user on an affected device. The vulnerability is...

CVE-2019-1803

CVE-2019-1803 concerns Cisco Nexus 9000 Series in ACI Mode Switch Software. A local, authenticated administrator can exploit overly permissive permissions on specific system files to execute arbitrary OS commands as root. Exploitation requires valid credentials and crafting a command string to be...

CVE-2019-1592

A vulnerability in the background operations functionality of Cisco Nexus 9000 Series Application Centric Infrastructure ACI Mode Switch Software could allow an authenticated, local attacker to gain elevated privileges as root on an affected device. The vulnerability is due to insufficient...

Input validation

A vulnerability in Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure ACI mode could allow an authenticated, remote attacker to access sensitive information. The vulnerability occurs because the affected software does not properly validate user-supplied input. An attack...