Enable TCP-SYN Cookie Protection

TCP-SYN cookie protection mitigates the impact of SYN flood attacks on the system. When an attacker launches a SYN flood attack, the half-open connection queue in the kernel is quickly exhausted to block valid connections. If SYN cookie is enabled, the system can still accept valid connections ev...

K68755210: BIG-IP SYN Cookie Protection vulnerability CVE-2022-23011

Security Advisory Description On certain hardware BIG-IP platforms, virtual servers may stop responding while processing TCP traffic due to an issue in the SYN Cookie Protection feature. CVE-2022-23011 Impact On certain hardware BIG-IP platforms, traffic is disrupted for new client connections...

K64571774: BIG-IP virtual server TCP sequence numbers vulnerability CVE-2020-5947

Security Advisory Description On specific BIG-IP platforms, attackers may be able to obtain TCP sequence numbers from the BIG-IP system that can be reused in future connections with the same source and destination port and IP numbers. CVE-2020-5947 Impact Attackers may be able to spoof TCP packet...

PAN-OS: Reflected Amplification Denial-of-Service (DoS) Vulnerability in URL Filtering

A PAN-OS URL filtering policy misconfiguration could allow a network-based attacker to conduct reflected and amplified TCP denial-of-service RDoS attacks. The DoS attack would appear to originate from a Palo Alto Networks PA-Series hardware, VM-Series virtual and CN-Series container firewall...

CVE-2022-23011

On certain hardware BIG-IP platforms, in version 15.1.x before 15.1.4 and 14.1.x before 14.1.3, virtual servers may stop responding while processing TCP traffic due to an issue in the SYN Cookie Protection feature. Note: Software versions which have reached End of Technical Support EoTS are not...

CVE-2022-23011

On certain hardware BIG-IP platforms, in version 15.1.x before 15.1.4 and 14.1.x before 14.1.3, virtual servers may stop responding while processing TCP traffic due to an issue in the SYN Cookie Protection feature. Note: Software versions which have reached End of Technical Support EoTS are not...

CVE-2022-23011

On certain hardware BIG-IP platforms, in version 15.1.x before 15.1.4 and 14.1.x before 14.1.3, virtual servers may stop responding while processing TCP traffic due to an issue in the SYN Cookie Protection feature. Note: Software versions which have reached End of Technical Support EoTS are not...

CVE-2022-23028

On BIG-IP AFM version 16.x before 16.1.0, 15.1.x before 15.1.5, 14.1.x before 14.1.4.5, and all versions of 13.1.x, when global AFM SYN cookie protection TCP Half Open flood vector is activated in the AFM Device Dos or DOS profile, certain types of TCP connections will fail. Note: Software versio...

CVE-2022-23011

On certain hardware BIG-IP platforms, in version 15.1.x before 15.1.4 and 14.1.x before 14.1.3, virtual servers may stop responding while processing TCP traffic due to an issue in the SYN Cookie Protection feature. Note: Software versions which have reached End of Technical Support EoTS are not...

CVE-2022-23011

CVE-2022-23011 affects F5 BIG-IP SYN Cookie Protection on certain hardware platforms. Affected: BIG-IP 15.1.x before 15.1.4 and 14.1.x before 14.1.3 (EoTS versions not evaluated); vulnerable hardware includes i850, i2600, i2800. Issue: virtual servers may stop processing TCP traffic, enabling a d...

F5 Networks BIG-IP : BIG-IP SYN Cookie Protection vulnerability (K68755210)

The version of F5 Networks BIG-IP installed on the remote host is prior to 14.1.3 / 15.1.4 / 16.0.0. It is, therefore, affected by a vulnerability as referenced in the K68755210 advisory. - On certain hardware BIG-IP platforms, in version 15.1.x before 15.1.4 and 14.1.x before 14.1.3, virtual...

F5 Networks BIG-IP : BIG-IP virtual server TCP sequence numbers vulnerability (K64571774)

On specific BIG-IP platforms, attackersmay be able to obtain TCP sequence numbers from the BIG-IP system that can be reused in future connections with the same source and destination port and IP numbers.CVE-2020-5947 Impact Attackers may be able to spoof TCP packets to be used by a future...

CVE-2017-5972

The TCP stack in the Linux kernel 3.x does not properly implement a SYN cookie protection mechanism for the case of a fast network connection, which allows remote attackers to cause a denial of service CPU consumption by sending many TCP SYN packets, as demonstrated by an attack against the...

Code injection

In F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, GTM, Link Controller, PEM, PSM, WebAccelerator, and WebSafe 11.6.1 HF1, 12.0.0 HF3, 12.0.0 HF4, and 12.1.0 through 12.1.2, undisclosed traffic patterns received while software SYN cookie protection is engaged may cause a disrupti...

CVE-2017-6137

In F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, GTM, Link Controller, PEM, PSM, WebAccelerator, and WebSafe 11.6.1 HF1, 12.0.0 HF3, 12.0.0 HF4, and 12.1.0 through 12.1.2, undisclosed traffic patterns received while software SYN cookie protection is engaged may cause a disrupti...

CVE-2017-6137

In F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, DNS, Edge Gateway, GTM, Link Controller, PEM, PSM, WebAccelerator, and WebSafe 11.6.1 HF1, 12.0.0 HF3, 12.0.0 HF4, and 12.1.0 through 12.1.2, undisclosed traffic patterns received while software SYN cookie protection is engaged may cause a disrupti...

CVE-2017-5972

The TCP stack in the Linux kernel 3.x does not properly implement a SYN cookie protection mechanism for the case of a fast network connection, which allows remote attackers to cause a denial of service CPU consumption by sending many TCP SYN packets, as demonstrated by an attack against the...

Code injection

The TCP stack in the Linux kernel 3.x does not properly implement a SYN cookie protection mechanism for the case of a fast network connection, which allows remote attackers to cause a denial of service CPU consumption by sending many TCP SYN packets, as demonstrated by an attack against the...

CVE-2017-5972

The TCP stack in the Linux kernel 3.x does not properly implement a SYN cookie protection mechanism for the case of a fast network connection, which allows remote attackers to cause a denial of service CPU consumption by sending many TCP SYN packets, as demonstrated by an attack against the...

CVE-2017-5972

CVE-2017-5972 affects the Linux kernel 3.x TCP stack. The issue is that SYN cookies protection is not correctly applied for fast-network connection scenarios, enabling remote attackers to cause CPU denial of service by sending a flood of TCP SYN packets (as demonstrated against kernel-3.10.0 in C...