openswan: denial of service via IKE daemon restart when receiving a bad DH gx value

A flaw was discovered in the way Libreswan's IKE daemon processed IKE KE payloads. A remote attacker could send specially crafted IKE payload with a KE payload of g^x=0 that, when processed, would lead to a denial of service daemon crash...

PT-2015-6117 · Libreswan +4 · Libreswan +4

Name of the Vulnerable Software and Affected Versions: libreswan versions prior to 3.15 Openswan versions prior to 2.6.45 Description: The issue allows remote attackers to cause a denial of service, resulting in an assertion failure and daemon restart. This occurs when a zero DH g^x value is...

Fewer IPsec VPN Connections at Risk to Weak Diffie-Hellman

A challenge has been made against one of the conclusions in a potentially blockbuster academic paper on cryptographic weaknesses that may be the open door through which intelligence agencies are breaking encrypted connections. The paper, “Imperfect Forward Secrecy: How Diffie-Hellman Fails in...

Cisco Adaptive Security Appliance Denial of Service Vulnerability (CNVD-2015-06865)

The Cisco ASA 5500 Series Adaptive Security Appliances are modular platforms for delivering security and VPN services, providing firewall, IPS, anti-X, and VPN services. The Cisco Adaptive Security Appliance ASA has a security vulnerability in the IKEv1 implementation. A remote attacker could cau...

PT-2015-7181 · Cisco · Cisco Asa

Name of the Vulnerable Software and Affected Versions: Cisco Adaptive Security Appliance ASA software versions 7.2 through 9.3 before 9.33 Cisco Adaptive Security Appliance ASA software version 8.2 before 8.25.58 Cisco Adaptive Security Appliance ASA software version 8.3 before 8.47.29 Cisco...

IKEView.exe Stack Buffer Overflow Vulnerability

IKEView.exe is a tool for checking Internet private key exchange in firewall packets. IKEView.exe does not perform proper boundary checks on user-submitted inputs, allowing an attacker to exploit the vulnerability to execute arbitrary code or conduct denial-of-service attacks...

IKEView.exe Fox beta 1 - Stack Buffer Overflow Vulnerability

IKEView.exe is vulnerable to local stack based buffer overflow when parsing an malicious internet key exchange ".elg" file. + Credits: hyp3rlinx + Website: hyp3rlinx.altervista.org + Source: http://hyp3rlinx.altervista.org/advisories/AS-CPIKEVIEW-0911.txt Vendor: ================================...

IKEView.exe R60 - Stack Buffer Overflow (PoC)

Credits: hyp3rlinx + Website: hyp3rlinx.altervista.org + Source: http://hyp3rlinx.altervista.org/advisories/AS-IKEVIEWR60-0914.txt Vendor: ================================ www.checkpoint.com http://pingtool.org/downloads/IKEView.exe Product: ==================================================...

IKEView.exe Fox Beta 1 - Stack Buffer Overflow (PoC)

IKEView.exe Fox Beta 1 - Stack Buffer Overflow PoC + Credits: hyp3rlinx + Website: hyp3rlinx.altervista.org + Source: http://hyp3rlinx.altervista.org/advisories/AS-CPIKEVIEW-0911.txt Vendor: ================================ www.checkpoint.com Product: ================================ IKEView.exe...

The vulnerability of Cisco Adaptive Security Appliance’s network firewall allows attackers to bypass the authentication process.

The vulnerability of the IKEv1 protocol implementation of the Cisco Adaptive Security Appliance is related to deficiencies in access control for certain functions. Exploiting this vulnerability could allow a malicious actor to bypass authentication procedures using specially crafted IKEv1 packets...

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

The vulnerability of the IKE protocol implementation in the WS-IPSEC-3 service module of the Cisco IOS operating system is related to resource management errors. Exploiting this vulnerability allows a malicious actor to cause service failures by sending a special message at the time of establishi...

The vulnerability of Cisco ASA network gateways, which allows attackers to bypass authentication procedures

The vulnerability of the IKEv1 protocol implementation of the Cisco ASA network firewall is related to security configuration errors. Exploiting this vulnerability allows a malicious actor to bypass authentication procedures by using specially crafted IKEv1 packets...

libreswan Denial of Service Vulnerability

libreswan is a VPN based on IPSEC and IKE security protocol implementation of free open source software . A denial of service vulnerability exists in libreswan 3.9 through 3.12, which allows remote attackers to cause a denial of service via "ISAKMPNEXTSAK" with the "IPSEC DOI" value or the...

libreswan: crafted IKE packet causes daemon restart

A flaw was discovered in the way Libreswan's IKE daemon processed certain IKEv1 payloads. A remote attacker could send specially crafted IKEv1 payloads that, when processed, would lead to a denial of service daemon crash...

Cisco ASA ICV Checksum IPSec/IKEv2 Message Content Modification Vulnerability

The Cisco Adaptive Security Appliance is an adaptive security appliance that provides modules for security and VPN services. A security vulnerability exists in the Cisco Adaptive Security Appliance due to the AES-GCM code of the Cavium Networks cryptographic module component of the program failin...

Updated ipsec-tools packages fix CVE-2015-4047

Updated ipsec-tools packages fix security vulnerability: Javantea discovered a NULL pointer dereference flaw in racoon, the Internet Key Exchange daemon of ipsec-tools. A remote attacker can use this flaw to cause the IKE daemon to crash via specially crafted UDP packets, resulting in a denial of...

Cisco Catalyst 6500 Series Switches IPsec Tunnel Handling Denial of Service Vulnerability

A vulnerability in the Internet Key Exchange IKE subsystem of the Cisco WS-IPSEC-3 service module could allow an authenticated, remote attacker to cause a reload of the Catalyst switch. The vulnerability is due to insufficient bounds checks on a specific message during the establishment of an IPs...

USN-2628-1 strongswan vulnerability

Alexander E. Patrakov discovered that strongSwan incorrectly handled certain IKEv2 setups. A malicious server could possibly use this issue to obtain user credentials...

UBUNTU-CVE-2015-4171

strongSwan 4.3.0 through 5.x before 5.3.2 and strongSwan VPN Client before 1.4.6, when using EAP or pre-shared keys for authenticating an IKEv2 connection, does not enforce server authentication restrictions until the entire authentication process is complete, which allows remote servers to obtai...

Cisco Adaptive Security Appliance XAUTH Security Feature Bypass Vulnerability

The Cisco Adaptive Security Appliance is an adaptive security appliance that provides modules for security and VPN services. A security feature bypass vulnerability exists in the Cisco Adaptive Security Appliance, which can be exploited by an authenticated remote attacker to bypass XAUTH...