Input validation

An improper check for unusual or exceptional conditions vulnerability in Juniper Networks MX Series platforms with Trio-based MPC Modular Port Concentrator deployed in Ethernet VPN EVPN-Virtual Extensible LAN VXLAN configuration, may allow an attacker sending specific Layer 2 traffic to cause...

CVE-2021-0259 Junos OS and Junos OS Evolved: QFX5K Series: Underlay network traffic might not be processed upon receipt of high rate of specific genuine overlay packets in VXLAN scenario

Due to a vulnerability in DDoS protection in Juniper Networks Junos OS and Junos OS Evolved on QFX5K Series switches in a VXLAN configuration, instability might be experienced in the underlay network as a consequence of exceeding the default ddos-protection aggregate threshold. If an attacker on ...

CVE-2021-0259

CVE-2021-0259 affects Juniper Networks Junos OS and Junos OS Evolved on QFX5K Series switches in VXLAN configurations. The issue arises from DDoS protection logic, where an improperly detected DDoS violation can cause a leaf to drop processing of certain L2 traffic from spines in the underlay, al...

CVE-2021-0234

CVE-2021-0234 affects Juniper Networks Junos OS on QFX5100-96S with QFX 5e Series image. The issue is an improper initialization that prevents ddos-protection changes from taking effect beyond default DDoS settings configured via CLI. The ddos-protection (jddosd) daemon keeps the device functioni...

CVE-2021-0234 Junos OS: QFX5100-96S: DDoS protection does not work as expected.

Due to an improper Initialization vulnerability on Juniper Networks Junos OS QFX5100-96S devices with QFX 5e Series image installed, ddos-protection configuration changes will not take effect beyond the default DDoS Distributed Denial of Service settings when configured from the CLI. The DDoS...

CVE-2021-0228 Junos OS: MX Series: DDoS LACP violation upon receipt of specific layer 2 frames in EVPN-VXLAN deployment

An improper check for unusual or exceptional conditions vulnerability in Juniper Networks MX Series platforms with Trio-based MPC Modular Port Concentrator deployed in Ethernet VPN EVPN-Virtual Extensible LAN VXLAN configuration, may allow an attacker sending specific Layer 2 traffic to cause...

CVE-2021-0228

CVE-2021-0228 affects Juniper Networks Junos OS on MX Series with Trio-based MPC in EVPN-VXLAN deployments. The issue is an improper check for unusual conditions that allows a specific Layer 2 traffic pattern to trigger DoS protection unexpectedly, sustaining a DoS condition through continued rec...

A week in security (April 12 – 18)

Last week on Malwarebytes Labs, our podcast featured Troy Hunt, Chloé Messdaghi, and Tanya Janca who discussed security fatigue with us. We announced the release of the Malwarebytes SMB Cybersecurity Trust & Confidence Report 2021, a first-of-its-kind survey of the hardworking IT professionals on...

Apache CXF Resource Management Error Vulnerability

Apache CXF is the United States Apache Apache Foundation of an open source Web services framework. The framework supports a variety of Web services standards , a variety of front-end programming APIs. Apache CXF has a security vulnerability that can be exploited by attackers DDos attacks...

“Huge upsurge” in DDoS attacks during pandemic

Researchers at Netscout have released a report analyzing the malicious internet traffic of 2020 and comparing it to the years before. Some of the results were as expected: Brute-forcing credentials and more targeting towards internet-connected devices were foreseeable and have been discussed at...

Gafgyt Botnet Lifts DDoS Tricks from Mirai

Several variants of the Gafgyt Linux-based botnet malware family have incorporated code from the infamous Mirai botnet, researchers have discovered. Gafgyt a.k.a. Bashlite is a botnet that was first uncovered in 2014. It targets vulnerable internet of things IoT devices like Huawei routers, Realt...

Adapting Security to Work Anywhere

"Working from home 2021" was the title of my talk at The Cyber Security Summit in January, and the strikethrough is important. After a massive shift away from common workspaces in response to the global pandemic, there is no more working remotely or working from home, there is just working. The...

Nextcloud: Improper input-size validation on the user new session name can result in server-side DDoS.

Advisory at https://github.com/nextcloud/security-advisories/security/advisories/GHSA-7cwm-qph5-4h5w...

U.S. Dept Of Defense: XML Injection / External Service Interaction (HTTP/DNS) On https://█████████.mil

Greetings, I found on one of your sites an XML Injection + External service Interaction DNS/HTTP Link of the vulnerable file : https://█████.mil/██████████ Payload XML Injection : fkp please change the link of burp collaborator and + URL encode the payload How to reproduce █████ I cut the video...

CVE-2021-22696

CXF supports via JwtRequestCodeFilter passing OAuth 2 parameters via a JWT token as opposed to query parameters see: The OAuth 2.0 Authorization Framework: JWT Secured Authorization Request JAR. Instead of sending a JWT token as a "request" parameter, the spec also supports specifying a URI from...

CVE-2021-22696

CXF supports via JwtRequestCodeFilter passing OAuth 2 parameters via a JWT token as opposed to query parameters see: The OAuth 2.0 Authorization Framework: JWT Secured Authorization Request JAR. Instead of sending a JWT token as a "request" parameter, the spec also supports specifying a URI from...

Authorization

CXF supports via JwtRequestCodeFilter passing OAuth 2 parameters via a JWT token as opposed to query parameters see: The OAuth 2.0 Authorization Framework: JWT Secured Authorization Request JAR. Instead of sending a JWT token as a "request" parameter, the spec also supports specifying a URI from...

CVE-2021-22696

CVE-2021-22696 affects Apache CXF where improper validation of the request_uri parameter in OAuth 2 flows allows a remote attacker to cause a denial of service on the authorization server. The issue occurs when a JWT-based request uses a request_uri to fetch the token, with insufficient validatio...

CVE-2021-22696 OAuth 2 authorization service vulnerable to DDos attacks

CXF supports via JwtRequestCodeFilter passing OAuth 2 parameters via a JWT token as opposed to query parameters see: The OAuth 2.0 Authorization Framework: JWT Secured Authorization Request JAR. Instead of sending a JWT token as a "request" parameter, the spec also supports specifying a URI from...

Logic Flaw Vulnerability in NeoGoldenShield Firewall System

Zhongxin Golden Shield Firewall is a tool for detecting ddos attacks. There is a logic flaw vulnerability in the NeoGoldenShield Firewall system that can be exploited by attackers to obtain sensitive information...