Information disclosure

Juniper Networks Junos OS uses the 128.0.0.0/2 subnet for internal communications between the RE and PFEs. It was discovered that packets utilizing these IP addresses may egress an EX4300 switch, leaking configuration information such as heartbeats, kernel versions, etc. out to the Internet,...

CVE-2020-1628 Junos OS: EX4300: Traffic from the network internal to the device (128.0.0.0) may be forwarded to egress interfaces

Juniper Networks Junos OS uses the 128.0.0.0/2 subnet for internal communications between the RE and PFEs. It was discovered that packets utilizing these IP addresses may egress an EX4300 switch, leaking configuration information such as heartbeats, kernel versions, etc. out to the Internet,...

CVE-2020-1628

Juniper Junos OS on EX4300 is affected by an information exposure vulnerability (CVE-2020-1628) due to use of the 128.0.0.0/2 internal subnet for RE–PFE communications, which may cause packets to leak configuration details (e.g., heartbeats, kernel versions) to the Internet. Affected are multiple...

CVE-2020-1604

On EX4300, EX4600, QFX3500, and QFX5100 Series, a vulnerability in the IP firewall filter component may cause the firewall filter evaluation of certain packets to fail. This issue only affects firewall filter evaluation of certain packets destined to the device Routing Engine RE. This issue does...

CVE-2020-1604

On EX4300, EX4600, QFX3500, and QFX5100 Series, a vulnerability in the IP firewall filter component may cause the firewall filter evaluation of certain packets to fail. This issue only affects firewall filter evaluation of certain packets destined to the device Routing Engine RE. This issue does...

CVE-2020-1604

CVE-2020-1604 affects Junos OS on EX4300/EX4600/QFX3500/QFX5100 series. The IP firewall filter component may fail to evaluate certain IPv4/IPv6 packets destined to the Routing Engine, but L2/L3 filter paths to hosts are unaffected. Affected releases include 14.1X53 before certain D revisions (QFX...

Juniper Junos CVE-2020-1604 Security Bypass Vulnerability

Description Juniper Junos is prone to a security-bypass vulnerability. An attacker can exploit this issue to bypass certain security restrictions and perform unauthorized actions. This may aid in further attacks. The following products are affected: Juniper Junos 14.1X53 versions prior to...

Juniper Networks Junos OS Denial of Service Vulnerability (CNVD-2019-23261)

Juniper Networks Junos OS is a Juniper Networks network operating system for the company's hardware devices. The OS provides a secure programming interface and the Junos SDK. A security vulnerability exists in the pfe-chassisd Chassis Manager CMLC daemon in Juniper Networks Junos OS EX4300 Series...

Juniper Networks Junos OS Denial of Service Vulnerability (CNVD-2019-22785)

Juniper Networks Junos OS is a Juniper Networks network operating system for the company's hardware devices. The OS provides a secure programming interface and the Junos SDK. A security vulnerability exists in Juniper Networks Junos OS EX4300 Series. An attacker could exploit the vulnerability to...

CVE-2019-0048

On EX4300 Series switches with TCAM optimization enabled, incoming multicast traffic matches an implicit loopback filter rule first, since it has high priority. This rule is meant for reserved multicast addresses 224.0.0.x, but incorrectly matches on 224.x.x.x. Due to this bug, when a firewall...

CVE-2019-0046

A vulnerability in the pfe-chassisd Chassis Manager CMLC daemon of Juniper Networks Junos OS allows an attacker to cause a Denial of Service DoS to the EX4300 when specific valid broadcast packets create a broadcast storm condition when received on the me0 interface of the EX4300 Series device. A...

CVE-2019-0048

On EX4300 Series switches with TCAM optimization enabled, incoming multicast traffic matches an implicit loopback filter rule first, since it has high priority. This rule is meant for reserved multicast addresses 224.0.0.x, but incorrectly matches on 224.x.x.x. Due to this bug, when a firewall...

Design/Logic Flaw

A vulnerability in the pfe-chassisd Chassis Manager CMLC daemon of Juniper Networks Junos OS allows an attacker to cause a Denial of Service DoS to the EX4300 when specific valid broadcast packets create a broadcast storm condition when received on the me0 interface of the EX4300 Series device. A...

Design/Logic Flaw

On EX4300 Series switches with TCAM optimization enabled, incoming multicast traffic matches an implicit loopback filter rule first, since it has high priority. This rule is meant for reserved multicast addresses 224.0.0.x, but incorrectly matches on 224.x.x.x. Due to this bug, when a firewall...

CVE-2019-0046

Summary: CVE-2019-0046 affects Juniper Networks Junos OS on EX4300 Series, via the pfe-chassisd Chassis Manager (CMLC) daemon. The vulnerability allows an attacker to cause a Denial of Service by sending specific valid broadcast packets that trigger a broadcast storm on the me0 interface, requiri...

CVE-2019-0048

CVE-2019-0048 affects Juniper Networks Junos OS on the EX4300 Series. Root cause: with TCAM optimization enabled, an implicit loopback filter rule (high priority) meant for 224.0.0.x incorrectly matches 224.x.x.x, causing multicast firewall behavior to break when a filter is applied on the loopba...

CVE-2019-0046 Junos OS: EX4300 Series: Denial of Service upon receipt of large number of specific valid packets on management interface.

A vulnerability in the pfe-chassisd Chassis Manager CMLC daemon of Juniper Networks Junos OS allows an attacker to cause a Denial of Service DoS to the EX4300 when specific valid broadcast packets create a broadcast storm condition when received on the me0 interface of the EX4300 Series device. A...

CVE-2019-0048 EX4300 Series: When a firewall filter is applied to a loopback interface, other firewall filters for multicast traffic may fail

On EX4300 Series switches with TCAM optimization enabled, incoming multicast traffic matches an implicit loopback filter rule first, since it has high priority. This rule is meant for reserved multicast addresses 224.0.0.x, but incorrectly matches on 224.x.x.x. Due to this bug, when a firewall...

Juniper JSA10933

The version of tested product installed on the remote host is 18.2 prior to 18.2R1-S2, 18.2R2 on an EX4300-MP Series device with any lo0 filters applied. It is, therefore, affected by a vulnerability. The transit network traffic may reach the control plane via loopback interface lo0. The device m...

Juniper Networks EX4300-MP Junos OS Security Feature Issue Vulnerability

The Juniper Networks EX4300-MP is a 4300 series enterprise switch from Juniper Networks, U.S.A. Junos OS is a set of network operating systems dedicated to the company's hardware devices. A security vulnerability exists in Juniper Networks EX4300-MP in Junos OS version 18.2. An attacker could...