ID CVE-2017-3630
Summary Vulnerability in the Solaris component of Oracle Sun Systems Products Suite (subcomponent: Kernel). Supported versions that are affected are 10 and 11. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Solaris executes to compromise Solaris. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Solaris accessible data as well as unauthorized read access to a subset of Solaris accessible data and unauthorized ability to cause a partial denial of service (partial DOS) of Solaris. CVSS 3.0 Base Score 5.3 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L).
Vulnerable Configurations
  • Oracle Solaris 10
  • Oracle Solaris 11
Base: 4.6
  • 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 be directed at a client system, such as causing buffer overrun through loading seemingly benign image files, as in Microsoft Security Bulletin MS04-028 where specially crafted JPEG files could cause a buffer overrun once loaded into the browser. Another example targets clients reading pdf files. In this case the attacker simply appends javascript to the end of a legitimate url for a pdf ( http://path/to/pdf/file.pdf#whatever_name_you_want=javascript:your_code_here The client assumes that they are reading a pdf, but the attacker has modified the resource and loaded executable javascript into the client's browser process. 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.
  • Blue Boxing
    This type of attack against older telephone switches and trunks has been around for decades. A tone is sent by an adversary to impersonate a supervisor signal which has the effect of rerouting or usurping command of the line. While the US infrastructure proper may not contain widespread vulnerabilities to this type of attack, many companies are connected globally through call centers and business process outsourcing. These international systems may be operated in countries which have not upgraded Telco infrastructure and so are vulnerable to Blue boxing. Blue boxing is a result of failure on the part of the system to enforce strong authorization for administrative functions. While the infrastructure is different than standard current applications like web applications, there are historical lessons to be learned to upgrade the access control for administrative functions.
  • Restful Privilege Elevation
    Rest uses standard HTTP (Get, Put, Delete) style permissions methods, but these are not necessarily correlated generally with back end programs. Strict interpretation of HTTP get methods means that these HTTP Get services should not be used to delete information on the server, but there is no access control mechanism to back up this logic. This means that unless the services are properly ACL'd and the application's service implementation are following these guidelines then an HTTP request can easily execute a delete or update on the server side. The attacker identifies a HTTP Get URL such as http://victimsite/updateOrder, which calls out to a program to update orders on a database or other resource. The URL is not idempotent so the request can be submitted multiple times by the attacker, additionally, the attacker may be able to exploit the URL published as a Get method that actually performs updates (instead of merely retrieving data). This may result in malicious or inadvertent altering of data on the server.
  • Target Programs with Elevated Privileges
    This attack targets programs running with elevated privileges. The attacker would try to leverage a bug in the running program and get arbitrary code to execute with elevated privileges. For instance an attacker would look for programs that write to the system directories or registry keys (such as HKLM, which stores a number of critical Windows environment variables). These programs are typically running with elevated privileges and have usually not been designed with security in mind. Such programs are excellent exploit targets because they yield lots of power when they break. The malicious user try to execute its code at the same level as a privileged system call.
  • 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.
exploit-db via4
  • description Oracle Solaris 11.1 / 11.3 RSH - Local Root Stack Clash Exploit. CVE-2017-3629,CVE-2017-3630,CVE-2017-3631. Local exploit for Solaris_x86 platform. Tags: Local
    file exploits/solaris_x86/local/42270.c
    id EDB-ID:42270
    last seen 2017-06-29
    modified 2017-06-28
    platform solaris_x86
    published 2017-06-28
    reporter Exploit-DB
    title Oracle Solaris 11.1 / 11.3 RSH - Local Root Stack Clash Exploit
    type local
  • description Solaris - RSH Stack Clash Privilege Escalation (Metasploit). CVE-2017-1000364,CVE-2017-3629,CVE-2017-3630,CVE-2017-3631. Local exploit for Solaris platform. ...
    file exploits/solaris/local/45625.rb
    id EDB-ID:45625
    last seen 2018-11-27
    modified 2018-10-16
    platform solaris
    published 2018-10-16
    reporter Exploit-DB
    title Solaris - RSH Stack Clash Privilege Escalation (Metasploit)
    type local
metasploit via4
description This module exploits a vulnerability in RSH on unpatched Solaris systems which allows users to gain root privileges. The stack guard page on unpatched Solaris systems is of insufficient size to prevent collisions between the stack and heap memory, aka Stack Clash. This module uploads and executes Qualys' Solaris_rsh.c exploit, which exploits a vulnerability in RSH to bypass the stack guard page to write to the stack and create a SUID root shell. This module has offsets for Solaris versions 11.1 (x86) and Solaris 11.3 (x86). Exploitation will usually complete within a few minutes using the default number of worker threads (10). Occasionally, exploitation will fail. If the target system is vulnerable, usually re-running the exploit will be successful. This module has been tested successfully on Solaris 11.1 (x86) and Solaris 11.3 (x86).
last seen 2019-02-20
modified 2019-01-10
published 2018-09-18
reliability Good
reporter Rapid7
title Solaris RSH Stack Clash Privilege Escalation
nessus via4
NASL family Solaris Local Security Checks
NASL id SOLARIS_JUN2017_SRU_11_3_21_5_0.NASL
description The remote Solaris host is missing a vendor-supplied security patch. It is, therefore, affected by the following vulnerabilities : - Multiple security bypass vulnerabilities exist in the Kernel subcomponent that allow a specially crafted application to circumvent the stack guard page security mechanism. A local attacker can exploit these, by using stack clash methods, to gain elevated privileges. (CVE-2017-3629, CVE-2017-3630) - A privilege escalation vulnerability exists in the Kernel subcomponent when UID binaries are invoked via a hard-link using a different pathname. A local attacker can exploit this to gain elevated privileges. (CVE-2017-3631)
last seen 2019-02-21
modified 2018-10-16
plugin id 100997
published 2017-06-22
reporter Tenable
title Solaris 11 : Multiple Kernel Vulnerabilities
packetstorm via4
data source
last seen 2018-10-16
published 2018-10-15
reporter Brendan Coles
title Solaris RSH Stack Clash Privilege Escalation
refmap via4
bid 99153
  • 42270
  • 45625
Last major update 22-06-2017 - 09:29
Published 22-06-2017 - 09:29
Last modified 18-10-2018 - 06:29
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