Cisco IOS Software Zone-Based Firewall Feature Bypass Vulnerability (cisco-sa-20161207-ios-zbf)

A vulnerability in the Zone-Based Firewall feature of Cisco IOS Software could allow an unauthenticated, remote attacker to pass traffic that should otherwise have been dropped based on the configuration. SPDX-FileCopyrightText: 2016 Greenbone AG Some text descriptions might be excerpted from a...

Cisco IOS and Cisco IOS XE Software Zone-Based Firewall Feature Bypass Vulnerability

A vulnerability in the Zone-Based Firewall feature of Cisco IOS and Cisco IOS XE Software could allow an unauthenticated, remote attacker to pass traffic that should otherwise have been dropped based on the configuration. The vulnerability is due to a logic flaw in a corner case scenario. An...

Cisco IOS and IOS XE Software ZBFW Feature Security Bypass Vulnerability

Cisco IOS and IOS XE Software are operating systems developed by Cisco for its network devices.Zone-Based Firewall ZBFW is one of the policy firewall components. A security bypass vulnerability exists in the ZBFW feature in Cisco IOS and IOS XE Software, which stems from the program failing to...

Cross site scripting

The Zone-Based Firewall ZBFW functionality in Cisco IOS, possibly 15.4 and earlier, and IOS XE, possibly 3.13 and earlier, mishandles zone checking for existing sessions, which allows remote attackers to bypass intended resource-access restrictions via spoofed traffic that matches one of these...

CVE-2014-2146

Cisco IOS and IOS XE Zone-Based Firewall (ZBFW) features (likely IOS 15.4 and earlier; IOS XE 3.13 and earlier) are affected by a vulnerability in zone checking for existing sessions. This mishandling allows unauthenticated, remote attackers to bypass resource-access restrictions by injecting spo...

CVE-2014-2146

The Zone-Based Firewall ZBFW functionality in Cisco IOS, possibly 15.4 and earlier, and IOS XE, possibly 3.13 and earlier, mishandles zone checking for existing sessions, which allows remote attackers to bypass intended resource-access restrictions via spoofed traffic that matches one of these...

The vulnerability of the Cisco IOS operating system, which allows a malicious actor to trigger a service failure

Cisco IOS software contains errors in the implementation of Cisco IOS Intrusion Prevention System and Cisco IOS Zone-Based Firewall components. During their operation, creating multiple sessions may trigger the error ID CSCtdi79848 and a “service failure” by the router due to exhaustion of...

The vulnerability of the Cisco IOS operating system, which allows a malicious actor to trigger a service failure

Cisco IOS software contains errors in the implementation of the Cisco IOS Zone-Based Firewall component. When this component is operating, specially crafted network packets can trigger a “service failure” due to exhaustion of available memory...

Cisco IOS-XE Zone-Based Firewall Feature Security Bypass (CSCun96847)

According to its self-reported version, the Cisco IOS-XE software running on the remote device is affected by a security bypass vulnerability in the Zone-Based Firewall feature due to insufficient zone checking for traffic belonging to existing sessions. An unauthenticated, remote attacker can...

Cisco IOS Zone-Based Firewall Feature Security Bypass (CSCun94946)

According to its self-reported version, the Cisco IOS software running on the remote device is affected by a security bypass vulnerability in the Zone-Based Firewall feature due to insufficient zone checking for traffic belonging to existing sessions. An unauthenticated, remote attacker can explo...

CVE-2015-0593

The Zone-Based Firewall implementation in Cisco IOS 12.4122T and earlier does not properly manage session-object structures, which allows remote attackers to cause a denial of service device reload via crafted network traffic, aka Bug ID CSCul65003...

Cross site scripting

The Zone-Based Firewall implementation in Cisco IOS 12.4122T and earlier does not properly manage session-object structures, which allows remote attackers to cause a denial of service device reload via crafted network traffic, aka Bug ID CSCul65003...

CVE-2015-0593

The CVE-2015-0593 vulnerability affects Cisco IOS, specifically Zone-Based Firewall on 12.4(122)T and earlier. The issue arises from improper management of session-object structures, allowing remote attackers to trigger a denial of service resulting in a device reload via crafted network traffic ...

CVE-2015-0593

The Zone-Based Firewall implementation in Cisco IOS 12.4122T and earlier does not properly manage session-object structures, which allows remote attackers to cause a denial of service device reload via crafted network traffic, aka Bug ID CSCul65003...

CVE-2015-0592

The Zone-Based Firewall implementation in Cisco IOS 15.42T3 and earlier allows remote attackers to cause a denial of service device reload via crafted network traffic that triggers incorrect kernel-timer handling, aka Bug ID CSCuh25672...

Cross site scripting

The Zone-Based Firewall implementation in Cisco IOS 15.42T3 and earlier allows remote attackers to cause a denial of service device reload via crafted network traffic that triggers incorrect kernel-timer handling, aka Bug ID CSCuh25672...

CVE-2015-0592

Cisco IOS Zone-Based Firewall (15.4(2)T3 and earlier) is affected by a kernel-timer handling bug (Bug ID CSCuh25672) that enables a remote attacker to trigger a device reload via crafted traffic. The vulnerability stems from improper management of kernel timers within the kernel timer subsystem u...

Cisco IOS Software Kernel Timer Vulnerability

A vulnerability in the kernel timers in Cisco IOS Software could allow an unauthenticated, remote attacker to trigger a reload of the affected device. The vulnerability is due to improper management of kernel timers. An attacker could exploit this vulnerability by sending crafted traffic, causing...

CVE-2013-5543

Cisco IOS XE 3.4 before 3.4.2S and 3.5 before 3.5.1S on 1000 ASR devices allows remote attackers to cause a denial of service device reload via malformed ICMP error packets associated with a 1 TCP or 2 UDP session that is under inspection by the Zone-Based Firewall ZBFW component, aka Bug ID...

CVE-2013-5543

CVE-2013-5543 affects Cisco IOS XE on 1000 Series ASR routers. A vulnerability in the Zone-Based Firewall (ZBFW) handling allows remote attackers to trigger a device reload via malformed ICMP error packets bound to an active TCP/UDP session (Bug CSCtt26470). Affected versions are IOS XE 3.4 prior...