Vulnerabilities > CVE-2008-4389 - Improper Authentication vulnerability in Symantec Appstream and Workspace Streaming

047910
CVSS 0.0 - NONE
Attack vector
UNKNOWN
Attack complexity
UNKNOWN
Privileges required
UNKNOWN
Confidentiality impact
UNKNOWN
Integrity impact
UNKNOWN
Availability impact
UNKNOWN
symantec
CWE-287
nessus
NVD
Published: 2010-06-17
Updated: 2024-11-21

Summary

Symantec AppStream 5.2.x and Symantec Workspace Streaming (SWS) 6.1.x before 6.1 SP4 do not properly perform authentication, which allows remote Workspace Streaming servers and man-in-the-middle attackers to download arbitrary executable files onto a client system, and execute these files, via unspecified vectors.

Vulnerable Configurations

Part Description Count
Application
Symantec
8

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Authentication Abuse
    An attacker obtains unauthorized access to an application, service or device either through knowledge of the inherent weaknesses of an authentication mechanism, or by exploiting a flaw in the authentication scheme's implementation. In such an attack an authentication mechanism is functioning but a carefully controlled sequence of events causes the mechanism to grant access to the attacker. This attack may exploit assumptions made by the target's authentication procedures, such as assumptions regarding trust relationships or assumptions regarding the generation of secret values. This attack differs from Authentication Bypass attacks in that Authentication Abuse allows the attacker to be certified as a valid user through illegitimate means, while Authentication Bypass allows the user to access protected material without ever being certified as an authenticated user. This attack does not rely on prior sessions established by successfully authenticating users, as relied upon for the "Exploitation of Session Variables, Resource IDs and other Trusted Credentials" attack patterns.
  • Exploiting Trust in Client (aka Make the Client Invisible)
    An attack of this type exploits a programs' vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by placing themselves in the communication channel between client and server such that communication directly to the server is possible where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.
  • Utilizing REST's Trust in the System Resource to Register Man in the Middle
    This attack utilizes a REST(REpresentational State Transfer)-style applications' trust in the system resources and environment to place man in the middle once SSL is terminated. Rest applications premise is that they leverage existing infrastructure to deliver web services functionality. An example of this is a Rest application that uses HTTP Get methods and receives a HTTP response with an XML document. These Rest style web services are deployed on existing infrastructure such as Apache and IIS web servers with no SOAP stack required. Unfortunately from a security standpoint, there frequently is no interoperable identity security mechanism deployed, so Rest developers often fall back to SSL to deliver security. In large data centers, SSL is typically terminated at the edge of the network - at the firewall, load balancer, or router. Once the SSL is terminated the HTTP request is in the clear (unless developers have hashed or encrypted the values, but this is rare). The attacker can utilize a sniffer such as Wireshark to snapshot the credentials, such as username and password that are passed in the clear once SSL is terminated. Once the attacker gathers these credentials, they can submit requests to the web service provider just as authorized user do. There is not typically an authentication on the client side, beyond what is passed in the request itself so once this is compromised, then this is generally sufficient to compromise the service's authentication scheme.
  • Man in the Middle Attack
    This type of attack targets the communication between two components (typically client and server). The attacker places himself in the communication channel between the two components. Whenever one component attempts to communicate with the other (data flow, authentication challenges, etc.), the data first goes to the attacker, who has the opportunity to observe or alter it, and it is then passed on to the other component as if it was never intercepted. This interposition is transparent leaving the two compromised components unaware of the potential corruption or leakage of their communications. The potential for Man-in-the-Middle attacks yields an implicit lack of trust in communication or identify between two components.

Nessus

NASL familyWindows
NASL idSYMANTEC_SYM10-008.NASL
descriptionThe version of Symantec AppStream or Symantec Workspace Streaming running on the remote host has a remote code execution vulnerability. The client does not properly authenticate to the server before downloading available files. A remote attacker could exploit this by setting up a rogue Workspace Streaming server, forcing clients to download arbitrary files without the need for user interaction. This could result in arbitrary code execution.
last seen2020-06-01
modified2020-06-02
plugin id47046
published2010-06-18
reporterThis script is Copyright (C) 2010-2018 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/47046
titleSymantec AppStream / Workspace Streaming Remote Code Execution (SYM10-008)
code
#
# (C) Tenable Network Security, Inc.
#


include("compat.inc");


if (description)
{
  script_id(47046);
  script_version("1.11");
  script_cvs_date("Date: 2018/11/15 20:50:29");

  script_cve_id("CVE-2008-4389");
  script_bugtraq_id(40611);
  script_xref(name:"CERT", value:"221257");
  script_xref(name:"Secunia", value:"40233");

  script_name(english:"Symantec AppStream / Workspace Streaming Remote Code Execution (SYM10-008)");
  script_summary(english:"Does a local version check");

  script_set_attribute(attribute:"synopsis", value:"The remote host has a code execution vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of Symantec AppStream or Symantec Workspace Streaming
running on the remote host has a remote code execution vulnerability.
The client does not properly authenticate to the server before
downloading available files.

A remote attacker could exploit this by setting up a rogue Workspace
Streaming server, forcing clients to download arbitrary files without
the need for user interaction. This could result in arbitrary code
execution.");
  # http://www.symantec.com/security_response/securityupdates/detail.jsp?fid=security_advisory&pvid=security_advisory&year=2010&suid=20100616_00
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?d8ec5aa0");
  script_set_attribute(attribute:"solution", value:"Upgrade to Symantec Workspace Streaming 6.1 SP4 (6.2.0.924) or later.");
 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: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:"vuln_publication_date", value:"2010/06/16");
  script_set_attribute(attribute:"patch_publication_date", value:"2010/05/28");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/06/18");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:symantec:workspace_streaming");
  script_set_attribute(attribute:"cpe",value:"cpe:/a:symantec:appstream");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows");

  script_copyright(english:"This script is Copyright (C) 2010-2018 Tenable Network Security, Inc.");

  script_dependencies("smb_hotfixes.nasl");
  script_require_keys("SMB/Registry/Enumerated");
  script_require_ports(139, 445);

  exit(0);
}


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


if (!get_kb_item("SMB/Registry/Enumerated"))
  exit(1, "The 'SMB/Registry/Enumerated' KB item is missing.");

name    =  kb_smb_name();
port    =  kb_smb_transport();
login   =  kb_smb_login();
pass    =  kb_smb_password();
domain  =  kb_smb_domain();



if(! smb_session_init()) audit(AUDIT_FN_FAIL, 'smb_session_init');
rc = NetUseAdd(login:login, password:pass, domain:domain, share:"IPC$");
if (rc != 1)
{
  NetUseDel();
  exit(1, "Can't connect to IPC$ share.");
}

# Connect to remote registry.
hklm = RegConnectRegistry(hkey:HKEY_LOCAL_MACHINE);
if (isnull(hklm))
{
  NetUseDel();
  exit(1, "Can't connect to remote registry.");
}

path = NULL;

# AppStream / SWS use the same registry key
key = "SOFTWARE\AppStream\AppMgr";
key_h = RegOpenKey(handle:hklm, key:key, mode:MAXIMUM_ALLOWED);

if (!isnull(key_h))
{
  path = RegQueryValue(handle:key_h, item:"Path");
  if (!isnull(path)) path = path[1];

  RegCloseKey(handle:key_h);
}
RegCloseKey(handle:hklm);

if (isnull(path))
{
  NetUseDel();
  exit(0, "No evidence of AppStream/Workspace Streaming was found in the registry.");
}

NetUseDel(close:FALSE);

match = eregmatch(string:path, pattern:'^(([A-Za-z]):(.*\\\\))([^\\\\]+\\.exe)$');
if (!match)
{
  NetUseDel();
  exit(1, "Error parsing exe path '"+path+"'.");
}

dir = match[1];
share = match[2] + '$';
exe = match[3] + match[4];

rc = NetUseAdd(login:login, password:pass, domain:domain, share:share);
if (rc != 1)
{
  NetUseDel();
  exit(1, "Can't connect to '"+share+"' share.");
}

fh = CreateFile(
  file:exe,
  desired_access:GENERIC_READ,
  file_attributes:FILE_ATTRIBUTE_NORMAL,
  share_mode:FILE_SHARE_READ,
  create_disposition:OPEN_EXISTING
);

if (!fh)
{
  NetUseDel();
  exit(1, "Error opening '"+path+"'.");
}

ver = GetFileVersion(handle:fh);
CloseFile(handle:fh);
NetUseDel();

if (isnull(ver)) exit(1, 'Error reading version from '+path);
version = join(ver, sep:'.');

# Check for AppStream 5.2.x and SWS 6.1 < SP4 (6.2.0.924)
if (
  (ver[0] == 5 && ver[1] == 2) ||
  (ver[0] == 6 &&
   (ver[1] < 2 || (ver[1] == 2 && ver[2] == 0 && ver[3] < 924)))
)
{
  NetUseDel();

  if (report_verbosity > 0)
  {
    report =
      '\n  Path              : '+dir+
      '\n  Installed version : '+version+
      '\n  Fixed version     : 6.2.0.924\n';
    security_hole(port:port, extra:report);
  }
  else security_hole(port);

  exit(0);
}
else exit(0, 'AppStream / SWS version '+version+' is not affected.');

References