||A flaw was found in katello-debug before 3.4.0 where certain scripts and log files used insecure temporary files. A local user could exploit this flaw to conduct a symbolic-link attack, allowing them to overwrite the contents of arbitrary files.
|Base: ||3.6 |
An attacker positions a symbolic link in such a manner that the targeted user or application accesses the link's endpoint, assuming that it is accessing a file with the link's name. The endpoint file may be either output or input. If the file is output, the result is that the endpoint is modified, instead of a file at the intended location. Modifications to the endpoint file may include appending, overwriting, corrupting, changing permissions, or other modifications. In some variants of this attack the attacker may be able to control the change to a file while in other cases they cannot. The former is especially damaging since the attacker may be able to grant themselves increased privileges or insert false information, but the latter can also be damaging as it can expose sensitive information or corrupt or destroy vital system or application files. Alternatively, the endpoint file may serve as input to the targeted application. This can be used to feed malformed input into the target or to cause the target to process different information, possibly allowing the attacker to control the actions of the target or to cause the target to expose information to the attacker. Moreover, the actions taken on the endpoint file are undertaken with the permissions of the targeted user or application, which may exceed the permissions that the attacker would normally have.
Accessing, Modifying or Executing Executable Files
An attack of this type exploits a system's configuration that allows an attacker to either directly access an executable file, for example through shell access; or in a possible worst case allows an attacker to upload a file and then execute it. Web servers, ftp servers, and message oriented middleware systems which have many integration points are particularly vulnerable, because both the programmers and the administrators must be in synch regarding the interfaces and the correct privileges for each interface.
Leverage Executable Code in Non-Executable Files
An attack of this type exploits a system's trust in configuration and resource files, when the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high.
The attack can also target server processes. The attacker edits the resource or configuration file, for example a web.xml file used to configure security permissions for a J2EE app server, adding role name "public" grants all users with the public role the ability to use the administration functionality.
The server trusts its configuration file to be correct, but when they are manipulated, the attacker gains full control.
Manipulating Input to File System Calls
An attacker manipulates inputs to the target software which the target software passes to file system calls in the OS. The goal is to gain access to, and perhaps modify, areas of the file system that the target software did not intend to be accessible.
|NASL family||Red Hat Local Security Checks |
|NASL id||REDHAT-RHSA-2018-0336.NASL |
|description||An update is now available for Red Hat Satellite.
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 CVE link(s) in the References section.
Red Hat Satellite is a systems management tool for Linux-based infrastructure. It allows for provisioning, remote management, and monitoring of multiple Linux deployments with a single centralized tool.
This update provides Satellite 6.3 packages for Red Hat Enterprise Linux 7 Satellite server. For the full list of new features provided by Satellite 6.3, see the Release Notes linked to in the references section. See the Satellite 6 Installation Guide for detailed instructions on how to install a new Satellite 6.3 environment, or the Satellite 6 Upgrading and Updating guide for detailed instructions on how to upgrade from prior versions of Satellite 6.
All users who require Satellite version 6.3 are advised to install these new packages.
Security Fix(es) :
* V8: integer overflow leading to buffer overflow in Zone::New (CVE-2016-1669)
* rubygem-will_paginate: XSS vulnerabilities (CVE-2013-6459)
* foreman: models with a 'belongs_to' association to an Organization do not verify association belongs to that Organization (CVE-2014-8183)
* foreman: inspect in a provisioning template exposes sensitive controller information (CVE-2016-3693)
* pulp: Unsafe use of bash $RANDOM for NSS DB password and seed (CVE-2016-3704)
* foreman: privilege escalation through Organization and Locations API (CVE-2016-4451)
* foreman: inside discovery-debug, the root password is displayed in plaintext (CVE-2016-4996)
* foreman: Persistent XSS in Foreman remote execution plugin (CVE-2016-6319)
* foreman: Stored XSS via organization/location with HTML in name (CVE-2016-8639)
* katello-debug: Possible symlink attacks due to use of predictable file names (CVE-2016-9595)
* rubygem-hammer_cli: no verification of API server's SSL certificate (CVE-2017-2667)
* foreman: Image password leak (CVE-2017-2672)
* pulp: Leakage of CA key in pulp-qpid-ssl-cfg (CVE-2016-3696)
* foreman: Information disclosure in provisioning template previews (CVE-2016-4995)
* foreman-debug: missing obfuscation of sensitive information (CVE-2016-9593)
For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.
Red Hat would like to thank Randy Barlow (RedHat) for reporting CVE-2016-3704 and Sander Bos for reporting CVE-2016-3696. The CVE-2014-8183 issue was discovered by Eric Helms (Red Hat); the CVE-2016-3693 and CVE-2016-4995 issues were discovered by Dominic Cleal (Red Hat); the CVE-2016-4451 and CVE-2016-6319 issues were discovered by Marek Hulan (Red Hat); the CVE-2016-4996 issue was discovered by Thom Carlin (Red Hat); the CVE-2016-8639 issue was discovered by Sanket Jagtap (Red Hat); the CVE-2016-9595 issue was discovered by Evgeni Golov (Red Hat); the CVE-2017-2667 issue was discovered by Tomas Strachota (Red Hat); and the CVE-2016-9593 issue was discovered by Pavel Moravec (Red Hat). |
|last seen||2019-02-21 |
|plugin id||107053 |
|title||RHEL 7 : Satellite Server (RHSA-2018:0336) |
|Last major update
||27-07-2018 - 14:29
||27-07-2018 - 14:29
||24-09-2018 - 14:17