Vulnerabilities > CVE-2007-3294 - Buffer Errors vulnerability in PHP 5.2.3

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
php
CWE-119
nessus
exploit available

Summary

Multiple buffer overflows in libtidy, as used in the Tidy extension for PHP 5.2.3 and possibly other products, allow context-dependent attackers to execute arbitrary code via (1) a long second argument to the tidy_parse_string function or (2) an unspecified vector to the tidy_repair_string function. NOTE: this might only be an issue in environments where vsnprintf is implemented as a wrapper for vsprintf.

Vulnerable Configurations

Part Description Count
Application
Php
1

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.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.

Exploit-Db

descriptionPHP 5.2.3 Tidy extension Local Buffer Overflow Exploit. CVE-2007-3294. Local exploit for windows platform
fileexploits/windows/local/4080.php
idEDB-ID:4080
last seen2016-01-31
modified2007-06-19
platformwindows
port
published2007-06-19
reporterrgod
sourcehttps://www.exploit-db.com/download/4080/
titlePHP 5.2.3 Tidy extension Local Buffer Overflow Exploit
typelocal

Nessus

NASL familyCGI abuses
NASL idPHP_5_2_4.NASL
descriptionAccording to its banner, the version of PHP installed on the remote host is older than 5.2.4. Such versions may be affected by various issues, including but not limited to several overflows.
last seen2020-06-01
modified2020-06-02
plugin id25971
published2007-09-03
reporterThis script is Copyright (C) 2007-2018 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/25971
titlePHP < 5.2.4 Multiple Vulnerabilities
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(25971);
  script_version("1.20");
  script_cvs_date("Date: 2018/07/24 18:56:10");

  script_cve_id(
    "CVE-2007-1413",
    "CVE-2007-2872",
    "CVE-2007-3294",
    "CVE-2007-3378",
    "CVE-2007-3790",
    "CVE-2007-3799",
    "CVE-2007-3806",
    "CVE-2007-4010",
    "CVE-2007-4033",
    "CVE-2007-4255",
    "CVE-2007-4507",
    "CVE-2007-4652",
    "CVE-2007-4658",
    "CVE-2007-4659",
    "CVE-2007-4660",
    "CVE-2007-4661",
    "CVE-2007-4662",
    "CVE-2007-4663"
  );
  script_bugtraq_id(24661, 24261, 24922, 25498);

  script_name(english:"PHP < 5.2.4 Multiple Vulnerabilities");
  script_summary(english:"Checks version of PHP");
 
  script_set_attribute(
    attribute:"synopsis",
    value:
"The remote web server uses a version of PHP that is affected by
multiple flaws."
  );
  script_set_attribute(
    attribute:"description",
    value:
"According to its banner, the version of PHP installed on the remote
host is older than 5.2.4.  Such versions may be affected by various
issues, including but not limited to several overflows."
  );
  script_set_attribute(attribute:"see_also", value:"http://www.php.net/releases/5_2_4.php");
  script_set_attribute(attribute:"solution", value:
"Upgrade to PHP version 5.2.4 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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:"No exploit is required");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_cwe_id(20, 22, 119, 189, 362, 399);

  script_set_attribute(attribute:"vuln_publication_date", value:"2007/06/01");
  script_set_attribute(attribute:"patch_publication_date", value:"2007/08/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2007/09/03");

  script_set_attribute(attribute:"plugin_type", value:"remote");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:php:php");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"CGI abuses");

  script_copyright(english:"This script is Copyright (C) 2007-2018 Tenable Network Security, Inc.");

  script_dependencies("php_version.nasl");
  script_require_ports("Services/www", 80);
  script_require_keys("www/PHP");
  exit(0);
}


include("global_settings.inc");
include("misc_func.inc");
include("http.inc");
include("audit.inc");
include("webapp_func.inc");

port = get_http_port(default:80, php:TRUE);

php = get_php_from_kb(
  port : port,
  exit_on_fail : TRUE
);

version = php["ver"];
source = php["src"];

backported = get_kb_item('www/php/'+port+'/'+version+'/backported');

if (report_paranoia < 2 && backported)
  audit(AUDIT_BACKPORT_SERVICE, port, "PHP "+version+" install");

if (version =~ "^5\.[01]\." ||
    version =~ "^5\.2\.[0-3]($|[^0-9])"
)
{
  if (report_verbosity > 0)
  {
    report =
      '\n  Version source     : '+source +
      '\n  Installed version  : '+version+
      '\n  Fixed version      : 5.2.4\n';
    security_warning(port:port, extra:report);
  }
  else security_warning(port);
  exit(0);
}
else audit(AUDIT_LISTEN_NOT_VULN, "PHP", port, version);

Statements

contributorMark J Cox
lastmodified2007-09-28
organizationRed Hat
statementNot vulnerable. PHP is not complied with the tidy library as shipped with Red Hat Enterprise Linux 2.1, 3, 4, or 5, or Red Hat Application Stack v1 or v2.