Vulnerabilities > CVE-2006-0189 - Remote Buffer Overflow vulnerability in Estara Softphone 3.0.1.14/3.0.1.46

047910
CVSS 7.5 - HIGH
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
network
low complexity
estara
nessus
exploit available
NVD
Published: 2006-01-13
Updated: 2018-10-19

Summary

Buffer overflow in eStara Softphone 3.0.1.14 through 3.0.1.46 allows remote attackers to execute arbitrary code via a long attribute (aka "a") field in the SDP data of a SIP packet on UDP port 5060. This is the vendor provided solution: "eStara has released Softphone version 3.0.1.47 to resolve the buffer overflow demonstrated in parsing SDP with long "a=" lines. Licensed customers can download a new version via the email sent to them with purchase, customers testing may go back to http://www.estara.com/softphone/ to obtain a new free trial. Version information can be gathered by going to Help->About. eStara highly recommends all customers upgrade to avoid this issue. If there's further questions please email us: [email protected]. eStara would like to thank ZwelL for bringing the issue to our attention."

Vulnerable Configurations

Part Description Count
Application
Estara
2

Exploit-Db

descriptioneStara Softphone <= 3.0.1.46 (SIP) Remote Buffer Overflow Exploit. CVE-2006-0189. Remote exploit for windows platform
idEDB-ID:1413
last seen2016-01-31
modified2006-01-12
published2006-01-12
reporterZwelL
sourcehttps://www.exploit-db.com/download/1413/
titleeStara Softphone <= 3.0.1.46 SIP Remote Buffer Overflow Exploit

Nessus

NASL familyMisc.
NASL idESTARA_SOFTPHONE_30147.NASL
descriptionThe version of SoftPhone installed on the remote host reportedly fails to properly handle SIP packets with long
last seen2020-06-01
modified2020-06-02
plugin id20958
published2006-02-22
reporterThis script is Copyright (C) 2006-2018 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/20958
titleeStara SoftPhone SIP Packet SDP Data attribute Field Overflow
code
#
# (C) Tenable Network Security, Inc.
#


include("compat.inc");

if (description)
{
  script_id(20958);
  script_version("1.12");
  script_cvs_date("Date: 2018/11/15 20:50:23");

  script_cve_id("CVE-2006-0189");
  script_bugtraq_id(16213);

  script_name(english:"eStara SoftPhone SIP Packet SDP Data attribute Field Overflow");
  script_summary(english:"Checks version number of eStara SoftPhone");
 
  script_set_attribute(attribute:"synopsis", value:
"The remote SIP client is prone to a buffer overflow attack." );
  script_set_attribute(attribute:"description", value:
"The version of SoftPhone installed on the remote host reportedly fails
to properly handle SIP packets with long 'a=' lines in the SDP data. 
An unauthenticated, remote attacker may be able to exploit this flaw to
overflow a buffer and execute arbitrary code on the remote host." );
  script_set_attribute(attribute:"see_also", value:"https://www.securityfocus.com/archive/1/archive/1/421596/100/0/threaded" );
  script_set_attribute(attribute:"solution", value:
"Upgrade to eStara SoftPhone version 3.0.1.47 or later." );
 script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
 script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
 script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
 script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"plugin_publication_date", value: "2006/02/22");
  script_set_attribute(attribute:"vuln_publication_date", value: "2006/01/11");
  script_set_attribute(attribute:"plugin_type", value:"local");
  script_end_attributes();
 
  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2006-2018 Tenable Network Security, Inc.");

  script_dependencies("estara_softphone_installed.nasl");
  script_require_keys("SMB/SoftPhone/Version");

  exit(0);
}


include("smb_func.inc");


ver = get_kb_item("SMB/SoftPhone/Version");
if (ver) {
  iver = split(ver, sep:'.', keep:FALSE);
  # Check whether it's an affected version.
  if (
    int(iver[0]) < 3 ||
    (
      int(iver[0]) == 3 && 
      int(iver[1]) == 0 &&
      (
        int(iver[2]) < 1 ||
        (int(iver[2]) == 1 && int(iver[3]) < 47)
      )
    )
  ) security_hole(kb_smb_transport());
}

References