CVE-2021-45100

The ksmbd server through 3.4.2, as used in the Linux kernel through 5.15.8, sometimes communicates in cleartext even though encryption has been enabled. This occurs because it sets the SMB2GLOBALCAPENCRYPTION flag when using the SMB 3.1.1 protocol, which is a violation of the SMB protocol...

CVE-2021-45100

The ksmbd server through 3.4.2, as used in the Linux kernel through 5.15.8, sometimes communicates in cleartext even though encryption has been enabled. This occurs because it sets the SMB2GLOBALCAPENCRYPTION flag when using the SMB 3.1.1 protocol, which is a violation of the SMB protocol...

Code injection

The ksmbd server through 3.4.2, as used in the Linux kernel through 5.15.8, sometimes communicates in cleartext even though encryption has been enabled. This occurs because it sets the SMB2GLOBALCAPENCRYPTION flag when using the SMB 3.1.1 protocol, which is a violation of the SMB protocol...

CVE-2021-45100

The CVE-2021-45100 issue affects the ksmbd server used in the Linux kernel (up to 5.15.8) where SMB2_GLOBAL_CAP_ENCRYPTION is incorrectly advertised with SMB 3.1.1, causing Windows 10 to disable encryption when it detects the protocol violation. This is a kernel/ksmbd implementation problem (not ...

CVE-2021-45100

The ksmbd server through 3.4.2, as used in the Linux kernel through 5.15.8, sometimes communicates in cleartext even though encryption has been enabled. This occurs because it sets the SMB2GLOBALCAPENCRYPTION flag when using the SMB 3.1.1 protocol, which is a violation of the SMB protocol...

CVE-2021-45100

The ksmbd server through 3.4.2, as used in the Linux kernel through 5.15.8, sometimes communicates in cleartext even though encryption has been enabled. This occurs because it sets the SMB2GLOBALCAPENCRYPTION flag when using the SMB 3.1.1 protocol, which is a violation of the SMB protocol...

Security Bulletin: SMB vulnerabilities in IBM N Series Products

Summary Data ONTAP products implement the SMB protocol. Systems that implement the SMB protocol can be susceptible to one or more man-in-the-middle attacks which when exploited could potentially lead to information disclosure, privilege escalation, or a Denial of Service. Vulnerability Details...

Important: Red Hat Security Advisory: samba security update

An update for samba is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...

Security Bulletin: A vulnerability in Samba affects IBM Spectrum Scale SMB protocol access method (CVE-2021-20254)

Summary A Samba vulnerability affects IBM Spectrum Scale SMB protocol access method that could allow a remote attacker to bypass security restrictions and gain unauthorized access to files. Vulnerability Details CVEID: CVE-2021-20254 DESCRIPTION: Samba could allow a remote authenticated attacker ...

Moderate: Red Hat Security Advisory: samba security update

An update for samba is now available for Red Hat Enterprise Linux 8.2 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for ea...

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,...

openSUSE 15 Security Update : samba (openSUSE-SU-2021:1471-1)

The remote SUSE Linux SUSE15 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2021:1471-1 advisory. - An attacker can downgrade a negotiated SMB1 client connection and its capabitilities. Kerberos authentication is only possible with the...

Samba Security Vulnerability (CVE-2019-10218)

Malicious servers can cause Samba client code to return filenames containing path separators to calling code. 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:...

Moderate: Red Hat Security Advisory: samba security update

An update for samba is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...

Moderate: samba security update

Samba is an open-source implementation of the Server Message Block SMB protocol and the related Common Internet File System CIFS protocol, which allow PC-compatible machines to share files, printers, and various information. Security Fixes: samba: Negative idmap cache entries can cause incorrect...

samba security update

An update is available for samba. 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 Samba is an open-source implementation of the Server Message Block SMB protocol...

Moderate: Red Hat Security Advisory: samba security update

An update for samba is now available for Red Hat Enterprise Linux 7.7 Advanced Update Support, Red Hat Enterprise Linux 7.7 Telco Extended Update Support, and Red Hat Enterprise Linux 7.7 Update Services for SAP Solutions. Red Hat Product Security has rated this update as having a security impact...

BlackMatter Ransomware

Summary Actions You Can Take Now to Protect Against BlackMatter Ransomware • Implement and enforce backup and restoration policies and procedures. • Usestrong, unique passwords. • Usemulti-factor authentication. • Implement network segmentation and traversal monitoring. Note: this advisory uses t...

Exploit for Improper Restriction of Operations within the Bounds of a Memory Buffer in Microsoft

This is a proof-of-concept PoC exploit for CVE-2020-0796, also known as SMBGhost, a pre-authentication remote code execution vulnerability in Microsoft Windows. The exploit is written in Python and uses the SMB protocol to target vulnerable Windows systems. The exploit code is organized into...

Exploit for Improper Restriction of Operations within the Bounds of a Memory Buffer in Microsoft

CVE-2020-0796 PoC aka CoronaBlue aka SMBGhost is a proof-of-concept exploit for a bug in Windows 10 1903/1909's new SMB3 compression capability. The bug is caused by a lack of bounds checking in the offset size of the SMB2CompressionTransformHeader, which is directly passed to several subroutines...