Executive Summary
| Summary | |
|---|---|
| Title | openssh security update |
| Informations | |||
|---|---|---|---|
| Name | RHSA-2016:0466 | First vendor Publication | 2016-03-21 |
| Vendor | RedHat | Last vendor Modification | 2016-03-21 |
| Severity (Vendor) | N/A | Revision | 01 |
Security-Database Scoring CVSS v3
| Cvss vector : N/A | |||
|---|---|---|---|
| Overall CVSS Score | NA | ||
| Base Score | NA | Environmental Score | NA |
| impact SubScore | NA | Temporal Score | NA |
| Exploitabality Sub Score | NA | ||
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : (AV:N/AC:L/Au:N/C:P/I:N/A:C) | |||
|---|---|---|---|
| Cvss Base Score | 8.5 | Attack Range | Network |
| Cvss Impact Score | 7.8 | Attack Complexity | Low |
| Cvss Expoit Score | 10 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| Problem Description: Updated openssh packages that fix two security issues are now available for Red Hat Enterprise Linux 6. Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64 Red Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64 Red Hat Enterprise Linux HPC Node (v. 6) - x86_64 Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64 Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64 Red Hat Enterprise Linux Workstation Optional (v. 6) - i386, x86_64 3. Description: OpenSSH is OpenBSD's SSH (Secure Shell) protocol implementation. These packages include the core files necessary for both the OpenSSH client and server. It was discovered that the OpenSSH server did not sanitize data received in requests to enable X11 forwarding. An authenticated client with restricted SSH access could possibly use this flaw to bypass intended restrictions. (CVE-2016-3115) It was discovered that the OpenSSH sshd daemon did not check the list of keyboard-interactive authentication methods for duplicates. A remote attacker could use this flaw to bypass the MaxAuthTries limit, making it easier to perform password guessing attacks. (CVE-2015-5600) All openssh users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. After installing this update, the OpenSSH server daemon (sshd) will be restarted automatically. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. For details on how to apply this update, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1245969 - CVE-2015-5600 openssh: MaxAuthTries limit bypass via duplicates in KbdInteractiveDevices 1316829 - CVE-2016-3115 openssh: missing sanitisation of input for X11 forwarding |
Original Source
| Url : https://rhn.redhat.com/errata/RHSA-2016-0466.html |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-264 | Permissions, Privileges, and Access Controls |
CPE : Common Platform Enumeration
Information Assurance Vulnerability Management (IAVM)
| Date | Description |
|---|---|
| 2015-08-20 | IAVM : 2015-A-0199 - Multiple Vulnerabilities in Apple Mac OS X Severity : Category I - VMSKEY : V0061337 |
Snort® IPS/IDS
| Date | Description |
|---|---|
| 2014-01-10 | SSH brute force login attempt RuleID : 19559 - Revision : 13 - Type : INDICATOR-SCAN |
Nessus® Vulnerability Scanner
| Date | Description |
|---|---|
| 2017-07-21 | Name : The remote device is missing a vendor-supplied security patch. File : f5_bigip_SOL93532943.nasl - Type : ACT_GATHER_INFO |
| 2017-05-01 | Name : The remote EulerOS host is missing multiple security updates. File : EulerOS_SA-2016-1008.nasl - Type : ACT_GATHER_INFO |
| 2016-03-22 | Name : The remote CentOS host is missing one or more security updates. File : centos_RHSA-2016-0465.nasl - Type : ACT_GATHER_INFO |
| 2016-03-22 | Name : The remote CentOS host is missing one or more security updates. File : centos_RHSA-2016-0466.nasl - Type : ACT_GATHER_INFO |
| 2016-03-22 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2016-0466.nasl - Type : ACT_GATHER_INFO |
| 2016-03-22 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2016-0466.nasl - Type : ACT_GATHER_INFO |
| 2016-03-14 | Name : The remote FreeBSD host is missing a security-related update. File : freebsd_pkg_e4644df8e7da11e5829dc80aa9043978.nasl - Type : ACT_GATHER_INFO |
| 2016-02-18 | Name : The remote device is missing a vendor-supplied security patch. File : f5_bigip_SOL17113.nasl - Type : ACT_GATHER_INFO |
| 2015-12-02 | Name : The remote CentOS host is missing one or more security updates. File : centos_RHSA-2015-2088.nasl - Type : ACT_GATHER_INFO |
| 2015-07-28 | Name : The remote FreeBSD host is missing a security-related update. File : freebsd_pkg_5b74a5bc348f11e5ba05c80aa9043978.nasl - Type : ACT_GATHER_INFO |
Alert History
| Date | Informations |
|---|---|
| 2016-03-23 13:26:11 |
|
| 2016-03-22 17:26:22 |
|
| 2016-03-22 00:23:02 |
|
