Input validation

A vulnerability in ICMPv6 inspection when configured with the Snort 2 detection engine for Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause the CPU of an affected device to spike to 100 percent, which could stop all traffic processing and result...

CVE-2023-20267

A vulnerability in the IP geolocation rules of Snort 3 could allow an unauthenticated, remote attacker to potentially bypass IP address restrictions. This vulnerability exists because the configuration for IP geolocation rules is not parsed properly. An attacker could exploit this vulnerability b...

CVE-2023-20267

CVE-2023-20267 affects Snort 3’s IP geolocation rules where misparsing the configuration can let an unauthenticated, remote attacker spoof an IP to bypass location-based IP restrictions. The issue stems from how IP geolocation rules are parsed. A successful exploit could bypass restrictions witho...

CVE-2023-20267

A vulnerability in the IP geolocation rules of Snort 3 could allow an unauthenticated, remote attacker to potentially bypass IP address restrictions. This vulnerability exists because the configuration for IP geolocation rules is not parsed properly. An attacker could exploit this vulnerability b...

CVE-2023-20270

A vulnerability in the interaction between the Server Message Block SMB protocol preprocessor and the Snort 3 detection engine for Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to bypass the configured policies or cause a denial of service DoS conditi...

CVE-2023-20270

A vulnerability in the interaction between the Server Message Block SMB protocol preprocessor and the Snort 3 detection engine for Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to bypass the configured policies or cause a denial of service DoS conditi...

CVE-2023-20177

A vulnerability in the SSL file policy implementation of Cisco Firepower Threat Defense FTD Software that occurs when the SSL/TLS connection is configured with a URL Category and the Snort 3 detection engine could allow an unauthenticated, remote attacker to cause the Snort 3 detection engine to...

CVE-2023-20177

A vulnerability in the SSL file policy implementation of Cisco Firepower Threat Defense FTD Software that occurs when the SSL/TLS connection is configured with a URL Category and the Snort 3 detection engine could allow an unauthenticated, remote attacker to cause the Snort 3 detection engine to...

Design/Logic Flaw

A vulnerability in the SSL file policy implementation of Cisco Firepower Threat Defense FTD Software that occurs when the SSL/TLS connection is configured with a URL Category and the Snort 3 detection engine could allow an unauthenticated, remote attacker to cause the Snort 3 detection engine to...

CVE-2023-20246

Multiple Cisco products are affected by a vulnerability in Snort access control policies that could allow an unauthenticated, remote attacker to bypass the configured policies on an affected system. This vulnerability is due to a logic error that occurs when the access control policies are being...

CVE-2023-20246

Multiple Cisco products are affected by a vulnerability in Snort access control policies that could allow an unauthenticated, remote attacker to bypass the configured policies on an affected system. This vulnerability is due to a logic error that occurs when the access control policies are being...

CVE-2023-20246

CVE-2023-20246 describes a vulnerability in Snort access control policies affecting multiple Cisco products, where a logic error during policy population could allow an unauthenticated, remote attacker to bypass configured access control rules. The impact is bypass of access controls with network...

CVE-2023-20246

Removed by vendor...

CVE-2023-20070

Cisco Firepower Threat Defense (FTD) Software is affected by CVE-2023-20070 due to a TLS 1.3 memory allocation logic error that can let an unauthenticated remote attacker trigger a reload of the Snort 3 detection engine, causing DoS and dropped packets during reload. The Snort engine restarts aut...

CVE-2023-20071

Multiple Cisco products are affected by a vulnerability in the Snort detection engine that could allow an unauthenticated, remote attacker to bypass the configured policies on an affected system. This vulnerability is due to a flaw in the FTP module of the Snort detection engine. An attacker coul...

CVE-2023-20071

Cisco CVE-2023-20071 affects the Snort detection engine’s FTP inspection module across multiple Cisco products (notably FTD/ASA family). An unauthenticated, network-accessible attacker can craft FTP traffic to bypass FTP inspection and potentially deliver a payload, per Cisco’s security advisory ...

CVE-2023-20031

A vulnerability in the SSL/TLS certificate handling of Snort 3 Detection Engine integration with Cisco Firepower Threat Defense FTD Software could allow an unauthenticated, remote attacker to cause the Snort 3 detection engine to restart. This vulnerability is due to a logic error that occurs whe...

CVE-2023-20031

The CVE-2023-20031 issue affects Cisco Firepower Threat Defense (FTD) with Snort 3, where a logic error in SSL/TLS certificate handling during SSL handshake under load can be exploited by a high rate of connection requests to cause the Snort 3 engine to reload. Consequences documented include pot...

CVE-2023-20031

Removed by vendor...

CVE-2023-20177

Cisco Firepower Threat Defense (FTD) Software contains a vulnerability in the SSL file policy handling when an SSL/TLS connection uses a URL Category and the Snort 3 detection engine is involved. The issue is a logic error observed as the Snort 3 engine inspects such connections, potentially caus...