Ziproxy PNG Image Processing Buffer Overflow Vulnerability

# SPDX-FileCopyrightText: 2010 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.901128");
  script_version("2025-03-05T05:38:52+0000");
  script_tag(name:"last_modification", value:"2025-03-05 05:38:52 +0000 (Wed, 05 Mar 2025)");
  script_tag(name:"creation_date", value:"2010-06-25 16:56:31 +0200 (Fri, 25 Jun 2010)");
  script_cve_id("CVE-2010-2350");
  script_tag(name:"cvss_base", value:"6.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_name("Ziproxy PNG Image Processing Buffer Overflow Vulnerability");
  script_xref(name:"URL", value:"http://secunia.com/advisories/40156");
  script_xref(name:"URL", value:"http://xforce.iss.net/xforce/xfdb/59510");
  script_xref(name:"URL", value:"http://ziproxy.cvs.sourceforge.net/viewvc/ziproxy/ziproxy-default/ChangeLog?revision=1.240&view=markup");

  script_tag(name:"qod_type", value:"remote_banner");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2010 Greenbone AG");
  script_family("Buffer overflow");
  script_dependencies("secpod_ziproxy_server_detect.nasl");
  script_require_ports("Services/www", 8080);
  script_mandatory_keys("Ziproxy/installed");

  script_tag(name:"impact", value:"Successful exploits may allow remote attackers to execute arbitrary code
  on the system with elevated privileges or cause the application to crash.");

  script_tag(name:"affected", value:"Ziproxy version 3.1.0.");

  script_tag(name:"insight", value:"The flaw is caused by a heap overflow error in the PNG decoder when processing
  malformed data, which could be exploited by attackers to crash an affected
  server or execute arbitrary code via a specially crafted PNG image.");

  script_tag(name:"solution_type", value:"VendorFix");

  script_tag(name:"solution", value:"Upgrade to the latest version of Ziproxy 3.1.1 or later.");

  script_tag(name:"summary", value:"Ziproxy server is prone to a buffer overflow vulnerability.");

  exit(0);
}

include("http_func.inc");
include("port_service_func.inc");
include("version_func.inc");

zipPort = http_get_port( default:8080 );

ziproxyVer = get_kb_item("www/" + zipPort + "/Ziproxy");
if(!ziproxyVer){
  exit(0);
}

if(version_is_less_equal(version:ziproxyVer, test_version:"3.1.0")){
  report = report_fixed_ver(installed_version:ziproxyVer, vulnerable_range:"Less or equal to 3.1.0");
  security_message(port:zipPort, data:report);
}