CVE-2020-35685

An issue was discovered in HCC Nichestack 3.0. 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 existing...

CVE-2020-35685

CVE-2020-35685 affects HCC Nichestack/NicheStack up to versions preceding 4.3, where ISNs are generated from an insufficiently random source. This enables an attacker to potentially hijack existing TCP connections or spoof future ones, as ISN predictability undermines TCP security. The ICS/CISA a...

HTTP Request Smuggling in Web Proxies

Overview HTTP web proxies and web accelerators that support HTTP/2 for an HTTP/1.1 backend webserver are vulnerable to HTTP Request Smuggling. Description The affected systems allow invalid characters such as carriage return and newline characters in HTTP/2 headers. When an attacker passes these...

SAP NetWeaver AS ABAP Memory Corruption (July 2021)

A memory corruption vulnerability exists in SAP NetWeaver AS ABAP due to buffer overflow from RFC Requests. An unauthenticated, remote attacker can exploit this by sending overlong content, crashing the corresponding work process. Note that Nessus has not tested for this issue but has instead...

Fedora: Security Advisory for vmod-uuid (FEDORA-2021-cf7585f0ca)

The remote host is missing an update for the Copyright C 2021 Greenbone Networks GmbH Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-or-later This program is free software; you can...

July 27, 2021—KB5005394 (OS Build 17763.2091) Out-of-band

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[SECURITY] Fedora 34 Update: vmod-uuid-1.8-4.fc34

UUID Varnish vmod used to generate a uuid, including versions 1, 3, 4 and 5 as specified in RFC 4122. See the RFC for details about the various versions...

CVE-2021-33684

CVE-2021-33684 affects SAP NetWeaver AS ABAP and ABAP Platform (multiple KRNL32NUC/KRNL32UC/KRNL64NUC/KRNL64UC/KERNEL versions). The issue is a memory corruption vulnerability caused by processing overly long content in RFC requests, which can crash the affected work process. The process then res...

July 13, 2021—KB5004307 (Security-only update)

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July 13, 2021—KB5004285 (Security-only update)

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Lenient Parsing of Content-Length Header When Prefixed with Plus Sign

Summary hyper's HTTP/1 server code had a flaw that incorrectly parses and accepts requests with a Content-Length header with a prefixed plus sign, when it should have been rejected as illegal. This combined with an upstream HTTP proxy that doesn't parse such Content-Length headers, but forwards...

RUSTSEC-2021-0078 Lenient `hyper` header parsing of `Content-Length` could allow request smuggling

hyper's HTTP header parser accepted, according to RFC 7230, illegal contents inside Content-Length headers. Due to this, upstream HTTP proxies that ignore the header may still forward them along if it chooses to ignore the error. To be vulnerable, hyper must be used as an HTTP/1 server and using ...

rsyslog bug fix and enhancement update

An update is available for rsyslog. This update affects Rocky Linux 8. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE list The rsyslog packages provide an enhanced, multi-threaded syslog daemon. It...

Node.js: HTTP Request Smuggling due to accepting space before colon

Summary: The llhttp parser in the httpmodule in Node 16.3.0 accepts requests with a space SP right after the header name before the colon. This can lead to HTTP Request Smuggling HRS. Description: When Node receives the following request: GET / HTTP/1.1 Host: localhost:5000 Content-Length : 5 hel...

CVE-2021-27610

SAP NetWeaver ABAP Server and ABAP Platform, versions - 700, 701, 702, 731, 740, 750, 751, 752, 753, 754, 755, 804, does not create information about internal and external RFC user in consistent and distinguished format, which could lead to improper authentication and may be exploited by maliciou...

CVE-2021-27610

SAP NetWeaver ABAP Server and ABAP Platform, versions - 700, 701, 702, 731, 740, 750, 751, 752, 753, 754, 755, 804, does not create information about internal and external RFC user in consistent and distinguished format, which could lead to improper authentication and may be exploited by maliciou...

CVE-2021-27610

CVE-2021-27610 affects SAP NetWeaver ABAP Server and ABAP Platform (versions 700, 701, 702, 731, 740, 750, 751, 752, 753, 754, 755, 804). The root cause is improper authentication due to failure to present internal and external RFC user information in a consistent, distinguished format, potential...

CVE-2021-27610

SAP NetWeaver ABAP Server and ABAP Platform, versions - 700, 701, 702, 731, 740, 750, 751, 752, 753, 754, 755, 804, does not create information about internal and external RFC user in consistent and distinguished format, which could lead to improper authentication and may be exploited by maliciou...

CVE-2021-27634

SAP NetWeaver AS for ABAP RFC Gateway, versions - KRNL32NUC - 7.22,7.22EXT, KRNL64NUC - 7.22,7.22EXT,7.49, KRNL64UC - 8.04,7.22,7.22EXT,7.49,7.53,7.73, KERNEL - 7.22,8.04,7.49,7.53,7.73,7.77,7.81,7.82,7.83, allows an unauthenticated attacker without specific knowledge of the system to send a...

CVE-2021-27634

SAP NetWeaver AS for ABAP RFC Gateway, versions - KRNL32NUC - 7.22,7.22EXT, KRNL64NUC - 7.22,7.22EXT,7.49, KRNL64UC - 8.04,7.22,7.22EXT,7.49,7.53,7.73, KERNEL - 7.22,8.04,7.49,7.53,7.73,7.77,7.81,7.82,7.83, allows an unauthenticated attacker without specific knowledge of the system to send a...