Vulnerabilities > CVE-2016-4396 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in HP System Management Homepage

047910
CVSS 7.8 - HIGH
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
COMPLETE
Availability impact
NONE
network
low complexity
hp
CWE-119
nessus

Summary

HPE System Management Homepage before v7.6 allows remote attackers to have an unspecified impact via unknown vectors, related to a "Buffer Overflow" issue.

Vulnerable Configurations

Part Description Count
Application
Hp
83

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.

Nessus

NASL familyWeb Servers
NASL idHPSMH_7_6.NASL
descriptionAccording to its banner, the version of HP System Management Homepage (SMH) hosted on the remote web server is prior to 7.6. It is, therefore, affected by the following vulnerabilities : - A heap buffer overflow condition exists in OpenSSL in the EVP_EncodeUpdate() function within file crypto/evp/encode.c that is triggered when handling a large amount of input data. An unauthenticated, remote attacker can exploit this to cause a denial of service condition. (CVE-2016-2105) - A heap buffer overflow condition exists in OpenSSL in the EVP_EncryptUpdate() function within file crypto/evp/evp_enc.c that is triggered when handling a large amount of input data after a previous call occurs to the same function with a partial block. An unauthenticated, remote attacker can exploit this to cause a denial of service condition. (CVE-2016-2106) - Multiple flaws exist OpenSSL in the aesni_cbc_hmac_sha1_cipher() function in file crypto/evp/e_aes_cbc_hmac_sha1.c and the aesni_cbc_hmac_sha256_cipher() function in file crypto/evp/e_aes_cbc_hmac_sha256.c that are triggered when the connection uses an AES-CBC cipher and AES-NI is supported by the server. A man-in-the-middle attacker can exploit these to conduct a padding oracle attack, resulting in the ability to decrypt the network traffic. (CVE-2016-2107) - Multiple unspecified flaws exist in OpenSSL in the d2i BIO functions when reading ASN.1 data from a BIO due to invalid encoding causing a large allocation of memory. An unauthenticated, remote attacker can exploit these to cause a denial of service condition through resource exhaustion. (CVE-2016-2109) - A certificate validation bypass vulnerability exists in cURL and libcurl due to improper validation of TLS certificates. A man-in-the-middle attacker can exploit this, via a spoofed certificate that appears valid, to disclose or manipulate transmitted data. (CVE-2016-3739) - An integer overflow condition exists in PHP in the php_raw_url_encode() function within file ext/standard/url.c due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit this to have an unspecified impact. (CVE-2016-4070) - A flaw exists in PHP in the php_snmp_error() function within file ext/snmp/snmp.c that is triggered when handling format string specifiers. An unauthenticated, remote attacker can exploit this, via a crafted SNMP object, to cause a denial of service or to execute arbitrary code. (CVE-2016-4071) - An invalid memory write error exists in PHP when handling the path of phar file names that allows an attacker to have an unspecified impact. (CVE-2016-4072) - A remote code execution vulnerability exists in PHP in phar_object.c due to improper handling of zero-length uncompressed data. An unauthenticated, remote attacker can exploit this, via a specially crafted TAR, ZIP, or PHAR file, to cause a denial of service condition or the execution of arbitrary code. (CVE-2016-4342) - A remote code execution vulnerability exists in PHP in the phar_make_dirstream() function within file ext/phar/dirstream.c due to improper handling of ././@LongLink files. An unauthenticated, remote attacker can exploit this, via a specially crafted TAR file, to cause a denial of service condition or the execution of arbitrary code. (CVE-2016-4343) - A cross-site scripting (XSS) vulnerability exists due to improper validation of user-supplied input. An unauthenticated, remote attacker can exploit this, via a specially crafted request, to execute arbitrary script code in a user
last seen2020-06-01
modified2020-06-02
plugin id94654
published2016-11-09
reporterThis script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/94654
titleHP System Management Homepage < 7.6 Multiple Vulnerabilities (HPSBMU03653) (httpoxy)
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(94654);
  script_version("1.12");
  script_cvs_date("Date: 2019/11/14");

  script_cve_id(
    "CVE-2016-2105",
    "CVE-2016-2106",
    "CVE-2016-2107",
    "CVE-2016-2109",
    "CVE-2016-3739",
    "CVE-2016-4070",
    "CVE-2016-4071",
    "CVE-2016-4072",
    "CVE-2016-4342",
    "CVE-2016-4343",
    "CVE-2016-4393",
    "CVE-2016-4394",
    "CVE-2016-4395",
    "CVE-2016-4396",
    "CVE-2016-4537",
    "CVE-2016-4538",
    "CVE-2016-4539",
    "CVE-2016-4540",
    "CVE-2016-4541",
    "CVE-2016-4542",
    "CVE-2016-4543",
    "CVE-2016-5385",
    "CVE-2016-5387",
    "CVE-2016-5388"
  );
  script_bugtraq_id(
    85800,
    85801,
    85993,
    87940,
    89154,
    89179,
    89744,
    89757,
    89760,
    89844,
    90172,
    90173,
    90174,
    90726,
    91816,
    91818,
    91821,
    93961
  );
  script_xref(name:"CERT", value:"797896");
  script_xref(name:"EDB-ID", value:"39645");
  script_xref(name:"EDB-ID", value:"39653");
  script_xref(name:"EDB-ID", value:"39768");
  script_xref(name:"HP", value:"HPSBMU03653");
  script_xref(name:"HP", value:"emr_na-c05320149");
  script_xref(name:"HP", value:"PSRT110145");
  script_xref(name:"HP", value:"PSRT110263");
  script_xref(name:"HP", value:"PSRT110115");
  script_xref(name:"HP", value:"PSRT110116");
  script_xref(name:"TRA", value:"TRA-2016-32");
  script_xref(name:"ZDI", value:"ZDI-16-587");

  script_name(english:"HP System Management Homepage < 7.6 Multiple Vulnerabilities (HPSBMU03653) (httpoxy)");
  script_summary(english:"Performs a banner check.");

  script_set_attribute(attribute:"synopsis", value:
"The remote web server is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"According to its banner, the version of HP System Management Homepage
(SMH) hosted on the remote web server is prior to 7.6. It is,
therefore, affected by the following vulnerabilities :

  - A heap buffer overflow condition exists in OpenSSL in
    the EVP_EncodeUpdate() function within file
    crypto/evp/encode.c that is triggered when handling
    a large amount of input data. An unauthenticated, remote
    attacker can exploit this to cause a denial of service
    condition. (CVE-2016-2105)

  - A heap buffer overflow condition exists in OpenSSL in
    the EVP_EncryptUpdate() function within file
    crypto/evp/evp_enc.c that is triggered when handling a
    large amount of input data after a previous call occurs
    to the same function with a partial block. An
    unauthenticated, remote attacker can exploit this to
    cause a denial of service condition. (CVE-2016-2106)

  - Multiple flaws exist OpenSSL in the
    aesni_cbc_hmac_sha1_cipher() function in file
    crypto/evp/e_aes_cbc_hmac_sha1.c and the
    aesni_cbc_hmac_sha256_cipher() function in file
    crypto/evp/e_aes_cbc_hmac_sha256.c that are triggered
    when the connection uses an AES-CBC cipher and AES-NI
    is supported by the server. A man-in-the-middle attacker
    can exploit these to conduct a padding oracle attack,
    resulting in the ability to decrypt the network traffic.
    (CVE-2016-2107)

  - Multiple unspecified flaws exist in OpenSSL in the d2i
    BIO functions when reading ASN.1 data from a BIO due to
    invalid encoding causing a large allocation of memory.
    An unauthenticated, remote attacker can exploit these to
    cause a denial of service condition through resource
    exhaustion. (CVE-2016-2109)

  - A certificate validation bypass vulnerability exists in
    cURL and libcurl due to improper validation of TLS
    certificates. A man-in-the-middle attacker can exploit
    this, via a spoofed certificate that appears valid, to
    disclose or manipulate transmitted data. (CVE-2016-3739)

  - An integer overflow condition exists in PHP in the
    php_raw_url_encode() function within file
    ext/standard/url.c due to improper validation of
    user-supplied input. An unauthenticated, remote attacker
    can exploit this to have an unspecified impact.
    (CVE-2016-4070)
    
  - A flaw exists in PHP in the php_snmp_error() function
    within file ext/snmp/snmp.c that is triggered when
    handling format string specifiers. An unauthenticated,
    remote attacker can exploit this, via a crafted SNMP
    object, to cause a denial of service or to execute
    arbitrary code. (CVE-2016-4071)

  - An invalid memory write error exists in PHP when
    handling the path of phar file names that allows an
    attacker to have an unspecified impact. (CVE-2016-4072)

  - A remote code execution vulnerability exists in PHP in
    phar_object.c due to improper handling of zero-length
    uncompressed data. An unauthenticated, remote attacker
    can exploit this, via a specially crafted TAR, ZIP, or
    PHAR file, to cause a denial of service condition or the
    execution of arbitrary code. (CVE-2016-4342)

  - A remote code execution vulnerability exists in PHP in
    the phar_make_dirstream() function within file
    ext/phar/dirstream.c due to improper handling of
    ././@LongLink files. An unauthenticated, remote attacker
    can exploit this, via a specially crafted TAR file, to
    cause a denial of service condition or the execution of
    arbitrary code. (CVE-2016-4343)

  - A cross-site scripting (XSS) vulnerability exists due to
    improper validation of user-supplied input. An
    unauthenticated, remote attacker can exploit this, via a
    specially crafted request, to execute arbitrary script
    code in a user's browser session. (CVE-2016-4393)

  - An unspecified HTTP Strict Transport Security (HSTS)
    bypass vulnerability exists that allows authenticated,
    remote attackers to disclose sensitive information.
    (CVE-2016-4394)

  - A remote code execution vulnerability exists due to an
    overflow condition in the mod_smh_config.so library
    caused by improper validation of user-supplied input
    when parsing the admin-group parameter supplied to the
    /proxy/SetSMHData endpoint. An unauthenticated, remote
    attacker can exploit this, via a specially crafted
    request, to cause a denial of service condition or the
    execution of arbitrary code. (CVE-2016-4395)

  - A remote code execution vulnerability exists due to an
    overflow condition in the mod_smh_config.so library
    caused by improper validation of user-supplied input
    when parsing the TKN parameter supplied to the
    /Proxy/SSO endpoint. An unauthenticated, remote
    attacker can exploit this, via a specially crafted
    request, to cause a denial of service condition or the
    execution of arbitrary code. (CVE-2016-4396)

  - An out-of-bounds read error exists in PHP in the
    php_str2num() function in bcmath.c when handling
    negative scales. An unauthenticated, remote attacker can
    exploit this, via a crafted call, to cause a denial of
    service condition or the disclosure of memory contents.
    (CVE-2016-4537)

  - A flaw exists in PHP the bcpowmod() function in bcmath.c
    due to modifying certain data structures without
    considering whether they are copies of the _zero_,
    _one_, or _two_ global variables. An unauthenticated,
    remote attacker can exploit this, via a crafted call, to
    cause a denial of service condition. (CVE-2016-4538)

  - A flaw exists in PHP in the xml_parse_into_struct()
    function in xml.c when handling specially crafted XML
    contents. An unauthenticated, remote attacker can
    exploit this to cause a denial of service condition.
    (CVE-2016-4539)

  - Multiple out-of-bounds read errors exist in PHP within
    file ext/intl/grapheme/grapheme_string.c when handling
    negative offsets in the zif_grapheme_stripos() and
    zif_grapheme_strpos() functions. An unauthenticated,
    remote attacker can exploit these issues to cause a
    denial of service condition or disclose memory contents.
    (CVE-2016-4540, CVE-2016-4541)

  - A flaw exists in PHP in the exif_process_IFD_TAG()
    function in exif.c due to improper construction of
    spprintf arguments. An unauthenticated, remote attacker
    can exploit this, via crafted header data, to cause an
    out-of-bounds read error, resulting in a denial of
    service condition or the disclosure of memory contents.
    (CVE-2016-4542)

  - A flaw exists in PHP in the exif_process_IFD_in_JPEG()
    function in exif.c due to improper validation of IFD
    sizes. An unauthenticated, remote attacker can exploit
    this, via crafted header data, to cause an out-of-bounds
    read error, resulting in a denial of service condition
    or the disclosure of memory contents. (CVE-2016-4543)

  - A man-in-the-middle vulnerability exists, known as
    'httpoxy', in the Apache Tomcat, Apache HTTP Server, and
    PHP components due to a failure to properly resolve
    namespace conflicts in accordance with RFC 3875 section
    4.1.18. The HTTP_PROXY environment variable is set based
    on untrusted user data in the 'Proxy' header of HTTP
    requests. The HTTP_PROXY environment variable is used by
    some web client libraries to specify a remote proxy
    server. A remote attacker can exploit this, via a
    crafted 'Proxy' header in an HTTP request, to redirect
    an application's internal HTTP traffic to an arbitrary
    proxy server where it may be observed or manipulated.
    (CVE-2016-5385, CVE-2016-5387, CVE-2016-5388)

Note that Nessus has not tested for these issues but has instead
relied only on the application's self-reported version number.");
  # https://support.hpe.com/hpsc/doc/public/display?docId=emr_na-c05320149
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?b7e1b347");
  script_set_attribute(attribute:"see_also", value:"https://httpoxy.org");
  script_set_attribute(attribute:"see_also", value:"https://www.tenable.com/security/research/tra-2016-32");
  script_set_attribute(attribute:"see_also", value:"https://www.zerodayinitiative.com/advisories/ZDI-16-587/");
  script_set_attribute(attribute:"solution", value:
"Upgrade to HP System Management Homepage (SMH) version 7.6 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2016-4342");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"in_the_news", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2016/10/26");
  script_set_attribute(attribute:"patch_publication_date", value:"2016/10/26");
  script_set_attribute(attribute:"plugin_publication_date", value:"2016/11/09");

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

  script_category(ACT_GATHER_INFO);
  script_family(english:"Web Servers");

  script_copyright(english:"This script is Copyright (C) 2016-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("compaq_wbem_detect.nasl", "os_fingerprint.nasl");
  script_require_keys("www/hp_smh");
  script_require_ports("Services/www", 2301, 2381);

  exit(0);
}

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

# Only Linux and Windows are affected -- HP-UX is not mentioned
os = get_kb_item_or_exit("Host/OS");
if ("Windows" >!< os && "Linux" >!< os) audit(AUDIT_OS_NOT, "Windows or Linux", os);

port = get_http_port(default:2381, embedded:TRUE);
app = "hp_smh";
get_install_count(app_name:app, exit_if_zero:TRUE);

install = get_single_install(
  app_name : app,
  port     : port,
  exit_if_unknown_ver : TRUE
);

dir = install['dir'];
version = install['version'];
prod = get_kb_item_or_exit("www/"+port+"/hp_smh/variant");
source_line = get_kb_item("www/"+port+"/hp_smh/source");

if (version == UNKNOWN_VER) audit(AUDIT_UNKNOWN_WEB_APP_VER, prod, build_url(port:port, qs:dir+"/") );

# nb: 'version' can have non-numeric characters in it so we'll create
#     an alternate form and make sure that's safe for use in 'ver_compare()'.
version_alt = ereg_replace(pattern:"[_-]", replace:".", string:version);
if (!ereg(pattern:"^[0-9][0-9.]+$", string:version_alt))
  audit(AUDIT_VER_FORMAT, version);

if (ver_compare(ver:version_alt, fix:"7.6", strict:FALSE) == -1)
{
  report = '\n  Product           : ' + prod;
  if (!isnull(source_line))
    report += '\n  Version source    : ' + source_line;
  report +=
    '\n  Installed version : ' + version +
    '\n  Fixed version     : 7.6' +
    '\n';

  security_report_v4(severity:SECURITY_HOLE, port:port, extra:report, xss:TRUE);
  exit(0);
}
else audit(AUDIT_LISTEN_NOT_VULN, prod, port, version);