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CVE-2016-2125

Status Candidate

Overview

It was found that Samba before versions 4.5.3, 4.4.8, 4.3.13 always requested forwardable tickets when using Kerberos authentication. A service to which Samba authenticated using Kerberos could subsequently use the ticket to impersonate Samba to other services or domain users.

Related Files

Red Hat Security Advisory 2017-1265-01
Posted May 22, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-1265-01 - Samba is an open-source implementation of the Server Message Block protocol and the related Common Internet File System protocol, which allow PC-compatible machines to share files, printers, and various information. Security Fix: It was found that Samba always requested forwardable tickets when using Kerberos authentication. A service to which Samba authenticated using Kerberos could subsequently use the ticket to impersonate Samba to other services or domain users.

tags | advisory, protocol
systems | linux, redhat
advisories | CVE-2016-2125, CVE-2016-2126, CVE-2017-2619
SHA-256 | 4098aa20948ce3f8ca4c274f5eed9f9ca798a1f08ce911aefc1cc64b5cf7492f
Red Hat Security Advisory 2017-0495-01
Posted Mar 23, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-0495-01 - Samba is an open-source implementation of the Server Message Block protocol and the related Common Internet File System protocol, which allow PC-compatible machines to share files, printers, and various information. The following packages have been upgraded to a later upstream version: samba. Security Fix: It was found that Samba always requested forwardable tickets when using Kerberos authentication. A service to which Samba authenticated using Kerberos could subsequently use the ticket to impersonate Samba to other services or domain users.

tags | advisory, protocol
systems | linux, redhat
advisories | CVE-2016-2125, CVE-2016-2126
SHA-256 | 7864c10d55e50c730f89f29c7789434d18cb31b92ea7fcff0dcf7b844731ab6c
Red Hat Security Advisory 2017-0494-01
Posted Mar 23, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-0494-01 - Samba is an open-source implementation of the Server Message Block protocol and the related Common Internet File System protocol, which allow PC-compatible machines to share files, printers, and various information. The following packages have been upgraded to a later upstream version: samba. Security Fix: It was found that Samba always requested forwardable tickets when using Kerberos authentication. A service to which Samba authenticated using Kerberos could subsequently use the ticket to impersonate Samba to other services or domain users.

tags | advisory, protocol
systems | linux, redhat
advisories | CVE-2016-2125, CVE-2016-2126
SHA-256 | de2622e03c9b880cc1223a80d277bcedde24fc6cf72820729223f772d9f067f1
Red Hat Security Advisory 2017-0744-01
Posted Mar 21, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-0744-01 - Samba is an open-source implementation of the Server Message Block or Common Internet File System protocol, which allows PC-compatible machines to share files, printers, and other information. Security Fix: It was found that Samba always requested forwardable tickets when using Kerberos authentication. A service to which Samba authenticated using Kerberos could subsequently use the ticket to impersonate Samba to other services or domain users.

tags | advisory, protocol
systems | linux, redhat
advisories | CVE-2016-2125, CVE-2016-2126
SHA-256 | 1ce8166802d57628cd0aacc6d9c34081469c6920c71ff18af394355450dc4b92
Red Hat Security Advisory 2017-0662-01
Posted Mar 21, 2017
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2017-0662-01 - Samba is an open-source implementation of the Server Message Block protocol and the related Common Internet File System protocol, which allow PC-compatible machines to share files, printers, and various information. Security Fix: It was found that Samba always requested forwardable tickets when using Kerberos authentication. A service to which Samba authenticated using Kerberos could subsequently use the ticket to impersonate Samba to other services or domain users.

tags | advisory, protocol
systems | linux, redhat
advisories | CVE-2016-2125, CVE-2016-2126
SHA-256 | 442935e6a374fb7bc908d12b18c53e8f934e99f5d371e37ea8509b0e862caf86
Ubuntu Security Notice USN-3158-1
Posted Dec 19, 2016
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3158-1 - Frederic Besler and others discovered that the ndr_pull_dnsp_nam function in Samba contained an integer overflow. An authenticated attacker could use this to gain administrative privileges. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, and Ubuntu 16.10. Simo Sorce discovered that that Samba clients always requested a forwardable ticket when using Kerberos authentication. An attacker could use this to impersonate an authenticated user or service. Various other issues were also addressed.

tags | advisory, overflow
systems | linux, ubuntu
advisories | CVE-2016-2123, CVE-2016-2125, CVE-2016-2126
SHA-256 | c5fe62a970f183ffc5d75284e01fcf427714cde3f3e461393f730eee65e8054f
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