Vulnerabilities > CVE-2008-5705 - Improper Input Validation vulnerability in Verlihub-Project Verlihub 0.9.8D

047910
CVSS 9.3 - CRITICAL
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
network
verlihub-project
CWE-20
critical
nessus
exploit available

Summary

The cTrigger::DoIt function in src/ctrigger.cpp in the trigger mechanism in the daemon in Verlihub 0.9.8d-RC2 and earlier, when user triggers are enabled, allows remote attackers to execute arbitrary commands via shell metacharacters in an argument.

Vulnerable Configurations

Part Description Count
Application
Verlihub-Project
1

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Server Side Include (SSI) Injection
    An attacker can use Server Side Include (SSI) Injection to send code to a web application that then gets executed by the web server. Doing so enables the attacker to achieve similar results to Cross Site Scripting, viz., arbitrary code execution and information disclosure, albeit on a more limited scale, since the SSI directives are nowhere near as powerful as a full-fledged scripting language. Nonetheless, the attacker can conveniently gain access to sensitive files, such as password files, and execute shell commands.
  • Cross Zone Scripting
    An attacker is able to cause a victim to load content into their web-browser that bypasses security zone controls and gain access to increased privileges to execute scripting code or other web objects such as unsigned ActiveX controls or applets. This is a privilege elevation attack targeted at zone-based web-browser security. In a zone-based model, pages belong to one of a set of zones corresponding to the level of privilege assigned to that page. Pages in an untrusted zone would have a lesser level of access to the system and/or be restricted in the types of executable content it was allowed to invoke. In a cross-zone scripting attack, a page that should be assigned to a less privileged zone is granted the privileges of a more trusted zone. This can be accomplished by exploiting bugs in the browser, exploiting incorrect configuration in the zone controls, through a cross-site scripting attack that causes the attackers' content to be treated as coming from a more trusted page, or by leveraging some piece of system functionality that is accessible from both the trusted and less trusted zone. This attack differs from "Restful Privilege Escalation" in that the latter correlates to the inadequate securing of RESTful access methods (such as HTTP DELETE) on the server, while cross-zone scripting attacks the concept of security zones as implemented by a browser.
  • Cross Site Scripting through Log Files
    An attacker may leverage a system weakness where logs are susceptible to log injection to insert scripts into the system's logs. If these logs are later viewed by an administrator through a thin administrative interface and the log data is not properly HTML encoded before being written to the page, the attackers' scripts stored in the log will be executed in the administrative interface with potentially serious consequences. This attack pattern is really a combination of two other attack patterns: log injection and stored cross site scripting.
  • Command Line Execution through SQL Injection
    An attacker uses standard SQL injection methods to inject data into the command line for execution. This could be done directly through misuse of directives such as MSSQL_xp_cmdshell or indirectly through injection of data into the database that would be interpreted as shell commands. Sometime later, an unscrupulous backend application (or could be part of the functionality of the same application) fetches the injected data stored in the database and uses this data as command line arguments without performing proper validation. The malicious data escapes that data plane by spawning new commands to be executed on the host.

Exploit-Db

descriptionverlihub <= 0.9.8d-RC2 Remote Command Execution Vulnerability. CVE-2008-5705,CVE-2008-5706. Remote exploit for linux platform
fileexploits/linux/remote/7183.txt
idEDB-ID:7183
last seen2016-02-01
modified2008-11-21
platformlinux
port
published2008-11-21
reporterv4lkyrius
sourcehttps://www.exploit-db.com/download/7183/
titleverlihub <= 0.9.8d-RC2 - Remote Command Execution Vulnerability
typeremote

Nessus

NASL familyFreeBSD Local Security Checks
NASL idFREEBSD_PKG_58997463E01211DDA7650030843D3802.NASL
descriptionsecurityfocus reports : An attacker with local access could potentially exploit this issue to perform symbolic-link attacks, overwriting arbitrary files in the context of the affected application. Successfully mounting a symlink attack may allow the attacker to delete or corrupt sensitive files, which may result in a denial of service. Other attacks may also be possible. Verlihub is prone to a remote command-execution vulnerability because it fails to sufficiently validate user input. Successfully exploiting this issue would allow an attacker to execute arbitrary commands on an affected computer in the context of the affected application.
last seen2020-06-01
modified2020-06-02
plugin id35336
published2009-01-12
reporterThis script is Copyright (C) 2009-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/35336
titleFreeBSD : verlihub -- insecure temporary file usage and arbitrary command execution (58997463-e012-11dd-a765-0030843d3802)
code
#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from the FreeBSD VuXML database :
#
# Copyright 2003-2018 Jacques Vidrine and contributors
#
# Redistribution and use in source (VuXML) and 'compiled' forms (SGML,
# HTML, PDF, PostScript, RTF and so forth) with or without modification,
# are permitted provided that the following conditions are met:
# 1. Redistributions of source code (VuXML) must retain the above
#    copyright notice, this list of conditions and the following
#    disclaimer as the first lines of this file unmodified.
# 2. Redistributions in compiled form (transformed to other DTDs,
#    published online in any format, converted to PDF, PostScript,
#    RTF and other formats) must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer
#    in the documentation and/or other materials provided with the
#    distribution.
# 
# THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION,
# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#

include("compat.inc");

if (description)
{
  script_id(35336);
  script_version("1.18");
  script_cvs_date("Date: 2019/08/02 13:32:39");

  script_cve_id("CVE-2008-5705", "CVE-2008-5706");
  script_bugtraq_id(32420, 32889);
  script_xref(name:"EDB-ID", value:"7183");

  script_name(english:"FreeBSD : verlihub -- insecure temporary file usage and arbitrary command execution (58997463-e012-11dd-a765-0030843d3802)");
  script_summary(english:"Checks for updated package in pkg_info output");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote FreeBSD host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"securityfocus reports :

An attacker with local access could potentially exploit this issue to
perform symbolic-link attacks, overwriting arbitrary files in the
context of the affected application.

Successfully mounting a symlink attack may allow the attacker to
delete or corrupt sensitive files, which may result in a denial of
service. Other attacks may also be possible.

Verlihub is prone to a remote command-execution vulnerability because
it fails to sufficiently validate user input.

Successfully exploiting this issue would allow an attacker to execute
arbitrary commands on an affected computer in the context of the
affected application."
  );
  # https://vuxml.freebsd.org/freebsd/58997463-e012-11dd-a765-0030843d3802.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?9a7ea64d"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:F/RL:W/RC:ND");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_cwe_id(20, 59);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:verlihub");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");

  script_set_attribute(attribute:"vuln_publication_date", value:"2008/11/22");
  script_set_attribute(attribute:"patch_publication_date", value:"2009/01/11");
  script_set_attribute(attribute:"plugin_publication_date", value:"2009/01/12");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2009-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"FreeBSD Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info");

  exit(0);
}


include("audit.inc");
include("freebsd_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD");
if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (pkg_test(save_report:TRUE, pkg:"verlihub<0.9.8.d.r2_2,1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:pkg_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

Seebug

bulletinFamilyexploit
descriptionBUGTRAQ ID: 32889,32420 CVE(CAN) ID: CVE-2008-5705,CVE-2008-5706 Verlihub是运行在Linux操作系统上的Direct Connect协议服务器。 Verlihub没有正确地过滤通过trigger机制传送给shell的用户输入,此外Verlihub守护程序还可能配置为以root用户权限运行,这就允许连接到hub的用户通过提交恶意请求执行任意命令,或允许本地攻击者通过对/tmp/trigger.tmp临时文件的符号链接攻击覆盖任意文件。以下是src/ctrigger.cpp文件的cTrigger::DoIt()函数中的有漏洞代码段: 106 string command(buf); 107 filename = server.mConfigBaseDir; 108 filename.append(&quot;/tmp/trigger.tmp&quot;); 109 command.append(&quot; &gt; &quot;); 110 command.append(filename); 111 cout &lt;&lt; command &lt;&lt; endl; 112 system(command.c_str()); Verlihub Project Verlihub &lt;= 0.9.8d-RC2 厂商补丁: Verlihub Project ---------------- 目前厂商还没有提供补丁或者升级程序,我们建议使用此软件的用户随时关注厂商的主页以获取最新版本: <a href=http://www.verlihub-project.org target=_blank rel=external nofollow>http://www.verlihub-project.org</a>
idSSV:4599
last seen2017-11-19
modified2008-12-26
published2008-12-26
reporterRoot
sourcehttps://www.seebug.org/vuldb/ssvid-4599
titleVerlihub创建不安全文件及远程代码执行漏洞