Vulnerabilities > CVE-2006-2312 - Argument Injection or Modification vulnerability in Skype

047910
CVSS 0.0 - NONE
Attack vector
UNKNOWN
Attack complexity
UNKNOWN
Privileges required
UNKNOWN
Confidentiality impact
UNKNOWN
Integrity impact
UNKNOWN
Availability impact
UNKNOWN
skype
CWE-88
nessus
NVD
Published: 2006-05-19
Updated: 2024-02-13

Summary

Argument injection vulnerability in the URI handler in Skype 2.0.*.104 and 2.5.*.0 through 2.5.*.78 for Windows allows remote authorized attackers to download arbitrary files via a URL that contains certain command-line switches.

Vulnerable Configurations

Part Description Count
Application
Skype
57
OS
Microsoft
1

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Try All Common Application Switches and Options
    An attacker attempts to invoke all common switches and options in the target application for the purpose of discovering weaknesses in the target. For example, in some applications, adding a --debug switch causes debugging information to be displayed, which can sometimes reveal sensitive processing or configuration information to an attacker. This attack differs from other forms of API abuse in that the attacker is blindly attempting to invoke options in the hope that one of them will work rather than specifically targeting a known option. Nonetheless, even if the attacker is familiar with the published options of a targeted application this attack method may still be fruitful as it might discover unpublicized functionality.
  • Using Meta-characters in E-mail Headers to Inject Malicious Payloads
    This type of attack involves an attacker leveraging meta-characters in email headers to inject improper behavior into email programs. Email software has become increasingly sophisticated and feature-rich. In addition, email applications are ubiquitous and connected directly to the Web making them ideal targets to launch and propagate attacks. As the user demand for new functionality in email applications grows, they become more like browsers with complex rendering and plug in routines. As more email functionality is included and abstracted from the user, this creates opportunities for attackers. Virtually all email applications do not list email header information by default, however the email header contains valuable attacker vectors for the attacker to exploit particularly if the behavior of the email client application is known. Meta-characters are hidden from the user, but can contain scripts, enumerations, probes, and other attacks against the user's system.
  • HTTP Parameter Pollution (HPP)
    An attacker overrides or adds HTTP GET/POST parameters by injecting query string delimiters. Via HPP it may be possible to override existing hardcoded HTTP parameters, modify the application behaviors, access and, potentially exploit, uncontrollable variables, and bypass input validation checkpoints and WAF rules.
  • OS Command Injection
    In this type of an attack, an adversary injects operating system commands into existing application functions. An application that uses untrusted input to build command strings is vulnerable. An adversary can leverage OS command injection in an application to elevate privileges, execute arbitrary commands and compromise the underlying operating system.

Nessus

NASL familyWindows
NASL idSKYPE_2006_001.NASL
descriptionThe version of Skype installed on the remote host reportedly may allow a remote attacker to initiate a file transfer to another Skype user by means of a specially crafted Skype URL.
last seen2020-06-01
modified2020-06-02
plugin id21576
published2006-05-19
reporterThis script is Copyright (C) 2006-2018 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/21576
titleSkype URI Handling Arbitrary File Download (uncredentialed check)
code
#
# (C) Tenable Network Security, Inc.
#

if ( NASL_LEVEL < 3000 ) exit(0);


include("compat.inc");

if (description)
{
  script_id(21576);
  script_version("1.18");
  script_cvs_date("Date: 2018/07/27 18:38:15");

  script_cve_id("CVE-2006-2312");
  script_bugtraq_id(18038);

  script_name(english:"Skype URI Handling Arbitrary File Download (uncredentialed check)");
  script_summary(english:"Checks version of Skype");
 
  script_set_attribute(attribute:"synopsis", value:
"The remote Skype client is affected by an information disclosure
issue." );
  script_set_attribute(attribute:"description", value:
"The version of Skype installed on the remote host reportedly may allow
a remote attacker to initiate a file transfer to another Skype user by
means of a specially crafted Skype URL." );
  script_set_attribute(attribute:"see_also", value:"http://www.skype.com/security/skype-sb-2006-001.html" );
  script_set_attribute(attribute:"solution", value:
"Upgrade to Skype release 2.0.*.105 / 2.5.*.79 or later." );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:P/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_set_attribute(attribute:"plugin_publication_date", value: "2006/05/19");
  script_set_attribute(attribute:"vuln_publication_date", value: "2006/05/19");
  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:skype:skype");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows");
  script_copyright(english:"This script is Copyright (C) 2006-2018 Tenable Network Security, Inc.");
  script_dependencies("skype_version.nbin", "smb_nativelanman.nasl");
  script_require_keys("Services/skype");
  script_require_ports(139, 445);

  exit(0);
}


include("global_settings.inc");
include("misc_func.inc");


# The flaw only affects Windows hosts.
if (report_paranoia < 2)
{
  os = get_kb_item("Host/OS/smb");
  if (!os) exit(0, "The 'Host/OS/smb' KB item is missing.");
  if ("Windows" >!< os) exit(0, "The issue only affects Windows hosts.");
}


port = get_service(svc:"skype", exit_on_fail:TRUE);

# nb: "ts = 605101300" => "version = 2.0.0.105"
ts = get_kb_item_or_exit("Skype/"+port+"/stackTimeStamp");
if (ts > 0 && ts < 605101300) security_note(port);
else exit(0, "The Skype client listening on port "+port+" is not affected based on its timestamp ("+ts+").");

References