Ubuntu: Security Advisory (USN-5174-1)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 Greenbone AG 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-only ifdescription...

Ubuntu: Security Advisory (USN-5142-2)

The remote host is missing an update for the SPDX-FileCopyrightText: 2021 Greenbone AG 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-only ifdescription...

USN-5142-2: Samba regressions

USN-5142-1 fixed vulnerabilities in Samba. Some of the upstream changes introduced regressions in name mapping and backups. Please see the following upstream bugs for more information: https://bugzilla.samba.org/showbug.cgi?id=14901 https://bugzilla.samba.org/showbug.cgi?id=14918 This update fixe...

USN-5174-1 samba vulnerabilities

Stefan Metzmacher discovered that Samba incorrectly handled SMB1 client connections. A remote attacker could possibly use this issue to downgrade connections to plaintext authentication. CVE-2016-2124 Andrew Bartlett discovered that Samba incorrectly mapping domain users to local users. An...

CVE-2021-36326

Dell EMC Streaming Data Platform, versions prior to 1.3 contain an SSL Strip Vulnerability in the User Interface UI. A remote unauthenticated attacker could potentially exploit this vulnerability, leading to a downgrade in the communications between the client and server into an unencrypted forma...

CVE-2021-36326

Dell EMC Streaming Data Platform, versions prior to 1.3 contain an SSL Strip Vulnerability in the User Interface UI. A remote unauthenticated attacker could potentially exploit this vulnerability, leading to a downgrade in the communications between the client and server into an unencrypted forma...

RHEL 7 : samba (RHSA-2021:4844)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2021:4844 advisory. Samba is an open-source implementation of the Server Message Block SMB protocol and the related Common Internet File System CIFS protocol,...

samba: SMB1 client connections can be downgraded to plaintext authentication

A flaw was found in the way samba implemented SMB1 authentication. An attacker could use this flaw to retrieve the plaintext password sent over the wire even if Kerberos authentication was required...

Microsoft Azure Sphere Security Monitor SMSyscallStageBaseManifests image validation signature check bypass vulnerability

Summary A signature check bypass vulnerability exists in the Security Monitor SMSyscallStageBaseManifests image validation functionality of Microsoft Azure Sphere 21.01. A specially crafted manifest can lead to a firmware downgrade. An attacker can use syscalls to trigger this vulnerability. Test...

SMB1 client connections can be downgraded to plaintext authentication

Description An attacker can downgrade a negotiated SMB1 client connection and its capabitilities. Kerberos authentication is only possible with the SMB2/3 protocol or SMB1 using the NT1 dialect and the extended security spnego capability. Without mandatory SMB signing the protocol can be downgrad...

New NPM library hijacks (coa and rc)

On Thursday, November 4, 2021, barely more than a week after ua-parser-js was hijacked, another popular NPM library called coa Command-Option-Argument, which is used in React packages around the world, was hijacked to distribute credential-stealing malware. The developer community noticed somethi...

GHSA-G2Q5-5433-RHRF Embedded malware in rc

The npm package rc had versions published with malicious code. Users of affected versions 1.2.9, 1.3.9, and 2.3.9 should downgrade to 1.2.8 as soon as possible and check their systems for suspicious activity. Any computer that has this package installed or running should be considered fully...

Embedded malware in rc

The npm package rc had versions published with malicious code. Users of affected versions 1.2.9, 1.3.9, and 2.3.9 should downgrade to 1.2.8 as soon as possible and check their systems for suspicious activity. Any computer that has this package installed or running should be considered fully...

Embedded malware in coa

The npm package coa had versions published with malicious code. Users of affected versions 2.0.3 and above should downgrade to 2.0.2 as soon as possible and check their systems for suspicious activity. See this issue for details as they unfold. Any computer that has this package installed or...

DEBIAN-CVE-2021-38502

Thunderbird ignored the configuration to require STARTTLS security for an SMTP connection. A MITM could perform a downgrade attack to intercept transmitted messages, or could take control of the authenticated session to execute SMTP commands chosen by the MITM. If an unprotected authentication...

CVE-2021-38502

Thunderbird ignored the configuration to require STARTTLS security for an SMTP connection. A MITM could perform a downgrade attack to intercept transmitted messages, or could take control of the authenticated session to execute SMTP commands chosen by the MITM. If an unprotected authentication...

CVE-2021-38502

Thunderbird ignored the configuration to require STARTTLS security for an SMTP connection. A MITM could perform a downgrade attack to intercept transmitted messages, or could take control of the authenticated session to execute SMTP commands chosen by the MITM. If an unprotected authentication...

CVE-2021-38502

Thunderbird ignored the configuration to require STARTTLS security for an SMTP connection. A MITM could perform a downgrade attack to intercept transmitted messages, or could take control of the authenticated session to execute SMTP commands chosen by the MITM. If an unprotected authentication...

CVE-2021-38502

Thunderbird is affected by CVE-2021-38502 where STARTTLS requirements for SMTP were ignored, enabling a MITM to downgrade to an unencrypted connection or hijack an authenticated session and potentially obtain credentials if unprotected methods are configured. Multiple connected advisories confirm...

CVE-2021-38502

Thunderbird ignored the configuration to require STARTTLS security for an SMTP connection. A MITM could perform a downgrade attack to intercept transmitted messages, or could take control of the authenticated session to execute SMTP commands chosen by the MITM. If an unprotected authentication...