What to know about the HTTP/2 Rapid Reset DDoS attacks

Cisco Talos is actively tracking the novel distributed denial-of-service DDoS attacks cloud services provider Cloudflare disclosed earlier this week. The techniques described in Cloudflares blog post resulted in a record-breaking DDoS attack and could facilitate much larger attacks in the future...

CVE-2020-27213

An issue was discovered in Ethernut Nut/OS 5.1. The code that generates Initial Sequence Numbers ISNs for TCP connections derives the ISN from an insufficiently random source. As a result, an attacker may be able to determine the ISN of current and future TCP connections and either hijack existin...

Code injection

An issue was discovered in Ethernut Nut/OS 5.1. The code that generates Initial Sequence Numbers ISNs for TCP connections derives the ISN from an insufficiently random source. As a result, an attacker may be able to determine the ISN of current and future TCP connections and either hijack existin...

K21800102: HTTP RFC enforcement is bypassed when a redirect iRule is applied to the virtual server

Security Advisory Description A specifically crafted HTTP request may bypass BIG-IP HTTP RFC enforcement and may lead the BIG-IP system to pass malformed HTTP requests to a target pool member web server. This issue occurs when all of the following conditions are met: A virtual server with an iRul...

CVE-2020-27213

An issue was discovered in Ethernut Nut/OS 5.1. The code that generates Initial Sequence Numbers ISNs for TCP connections derives the ISN from an insufficiently random source. As a result, an attacker may be able to determine the ISN of current and future TCP connections and either hijack existin...

SUSE-SU-2023:3861-1 Security update for SUSE Manager Server 4.3

This update fixes the following issues: billing-data-service: - Version 0.3-1 Add required dependencies to package and service Change billing api datastructure Require csp-billing-adapter service cobbler: - Fix EFI PXE boot regression bsc1214124 - Fix isolinux.cfg generation in 'cobbler buildiso'...

CVE-2023-5129

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority. Duplicate of CVE-2023-4863. Recent assessments: RFCSVC at September 27, 2023 7:33pm UTC reported: Assessed Attacker Value: 5 Assessed Attacker Value: 5Assessed Attacker Value: 5...

CVE-2023-40167

Jetty is a Java based web server and servlet engine. Prior to versions 9.4.52, 10.0.16, 11.0.16, and 12.0.1, Jetty accepts the + character proceeding the content-length value in a HTTP/1 header field. This is more permissive than allowed by the RFC and other servers routinely reject such requests...

Jetty accepts "+" prefixed value in Content-Length

Impact Jetty accepts the '+' character proceeding the content-length value in a HTTP/1 header field. This is more permissive than allowed by the RFC and other servers routinely reject such requests with 400 responses. There is no known exploit scenario, but it is conceivable that request smugglin...

Multiple BGP implementations are vulnerable to improperly formatted BGP updates

Overview Multiple BGP implementations have been identified as vulnerable to specially crafted Path Attributes of a BGP UPDATE. Instead of ignoring invalid updates they reset the underlying TCP connection for the BGP session and de-peer the router. This is undesirable because a session reset impac...

USN-6323-1: FRR vulnerability

Ben Cartwright-Cox discovered that FRR did not handle RFC 7606 attributes properly. A remote attacker could possibly use this to cause denial of service...

CBL Mariner 2.0 Security Update: rubygem-protocol-http1 (CVE-2023-38697)

The version of rubygem-protocol-http1 installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2023-38697 advisory. - protocol-http1 provides a low-level implementation of the HTTP/1 protocol. RFC 9112 Section...

SUSE SLES15 / openSUSE 15 Security Update : haproxy (SUSE-SU-2023:3469-1)

The remote SUSE Linux SLES15 / openSUSE 15 host has a package installed that is affected by a vulnerability as referenced in the SUSE-SU-2023:3469-1 advisory. - CVE-2023-40225: Fixed request smuggling with empty content-length header value bsc1214102. Tenable has extracted the preceding descripti...

Amazon Linux 2023 : haproxy (ALAS2023-2023-293)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2023-293 advisory. HAProxy through 2.0.32, 2.1.x and 2.2.x through 2.2.30, 2.3.x and 2.4.x through 2.4.23, 2.5.x and 2.6.x before 2.6.15, 2.7.x before 2.7.10, and 2.8.x before 2.8.2 forwards empty Content-Length headers,...

HAProxy through 2.0.32 2.1.x and 2.2.x through 2.2.30 2.3.x and 2.4.x through 2.4.23 2.5.x and 2.6.x before 2.6.15 2.7.x before 2.7.10 and 2.8.x before 2.8.2 forwards empty Content-Length headers violating RFC 9110 section 8.6. In uncommon cases an HTTP/1 server behind HAProxy may interpret the payload as an extra request.

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Ubuntu 20.04 LTS : HAProxy vulnerability (USN-6294-2)

The remote Ubuntu 20.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-6294-2 advisory. USN-6294-1 fixed vulnerabilities in HAProxy. This update provides the corresponding updates for Ubuntu 20.04 LTS. Tenable has extracted the preceding description...

Cross site request forgery (csrf)

HAProxy through 2.0.32, 2.1.x and 2.2.x through 2.2.30, 2.3.x and 2.4.x through 2.4.23, 2.5.x and 2.6.x before 2.6.15, 2.7.x before 2.7.10, and 2.8.x before 2.8.2 forwards empty Content-Length headers, violating RFC 9110 section 8.6. In uncommon cases, an HTTP/1 server behind HAProxy may interpre...

CVE-2023-40225

HAProxy through 2.0.32, 2.1.x and 2.2.x through 2.2.30, 2.3.x and 2.4.x through 2.4.23, 2.5.x and 2.6.x before 2.6.15, 2.7.x before 2.7.10, and 2.8.x before 2.8.2 forwards empty Content-Length headers, violating RFC 9110 section 8.6. In uncommon cases, an HTTP/1 server behind HAProxy may interpre...

CVE-2023-40225

HAProxy through 2.0.32, 2.1.x and 2.2.x through 2.2.30, 2.3.x and 2.4.x through 2.4.23, 2.5.x and 2.6.x before 2.6.15, 2.7.x before 2.7.10, and 2.8.x before 2.8.2 forwards empty Content-Length headers, violating RFC 9110 section 8.6. In uncommon cases, an HTTP/1 server behind HAProxy may interpre...

CVE-2023-40225

HAProxy through 2.0.32, 2.1.x and 2.2.x through 2.2.30, 2.3.x and 2.4.x through 2.4.23, 2.5.x and 2.6.x before 2.6.15, 2.7.x before 2.7.10, and 2.8.x before 2.8.2 forwards empty Content-Length headers, violating RFC 9110 section 8.6. In uncommon cases, an HTTP/1 server behind HAProxy may interpre...