Vulnerabilities > CVE-2014-7879 - Improper Authentication vulnerability in HP Hp-Ux B.11.11/B.11.23/B.11.31

047910
CVSS 8.5 - HIGH
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
SINGLE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
network
hp
CWE-287
nessus
NVD
Published: 2014-12-10
Updated: 2019-10-09

Summary

HP HP-UX B.11.11, B.11.23, and B.11.31, when the PAM configuration includes libpam_updbe, allows remote authenticated users to bypass authentication, and consequently execute arbitrary code, via unspecified vectors.

Vulnerable Configurations

Part Description Count
OS
Hp
3

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 familyHP-UX Local Security Checks
    NASL idHPUX_PHCO_43875.NASL
    descriptions700_800 11.31 libpam_updbe patch : A potential security vulnerability has been identified in the HP-UX running PAM using libpam_updbe in pam.conf(4). This vulnerability could allow remote users to bypass certain authentication restrictions. References: CVE-2014-7879 (SSRT101489).
    last seen2020-06-01
    modified2020-06-02
    plugin id79570
    published2014-11-26
    reporterThis script is Copyright (C) 2014 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/79570
    titleHP-UX PHCO_43875 : s700_800 11.31 libpam_updbe patch
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and patch checks in this plugin were 
# extracted from HP patch PHCO_43875. The text itself is
# copyright (C) Hewlett-Packard Development Company, L.P.
#

include("compat.inc");

if (description)
{
  script_id(79570);
  script_version("$Revision: 1.3 $");
  script_cvs_date("$Date: 2014/12/15 16:06:14 $");

  script_cve_id("CVE-2014-7879");
  script_bugtraq_id(71308);
  script_xref(name:"HP", value:"emr_na-c04511778");

  script_name(english:"HP-UX PHCO_43875 : s700_800 11.31 libpam_updbe patch");
  script_summary(english:"Checks for the patch in the swlist output");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote HP-UX host is missing a security-related patch."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"s700_800 11.31 libpam_updbe patch : 

A potential security vulnerability has been identified in the HP-UX
running PAM using libpam_updbe in pam.conf(4). This vulnerability
could allow remote users to bypass certain authentication
restrictions. References: CVE-2014-7879 (SSRT101489)."
  );
  # http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c04511778
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?462a1237"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Install patch PHCO_43875 or subsequent."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:S/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:ND/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:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:hp:hp-ux");

  script_set_attribute(attribute:"patch_publication_date", value:"2014/04/25");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/11/26");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014 Tenable Network Security, Inc.");
  script_family(english:"HP-UX Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/HP-UX/version", "Host/HP-UX/swlist");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("hpux.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/HP-UX/version")) audit(AUDIT_OS_NOT, "HP-UX");
if (!get_kb_item("Host/HP-UX/swlist")) audit(AUDIT_PACKAGE_LIST_MISSING);

if (!hpux_check_ctx(ctx:"11.31"))
{
  exit(0, "The host is not affected since PHCO_43875 applies to a different OS release.");
}

patches = make_list("PHCO_43875");
foreach patch (patches)
{
  if (hpux_installed(app:patch))
  {
    exit(0, "The host is not affected because patch "+patch+" is installed.");
  }
}


flag = 0;
if (hpux_check_patch(app:"OS-Core.ADMN-ENG-A-MAN", version:"B.11.31")) flag++;
if (hpux_check_patch(app:"OS-Core.CORE-64SLIB", version:"B.11.31")) flag++;
if (hpux_check_patch(app:"OS-Core.CORE-ENG-A-MAN", version:"B.11.31")) flag++;
if (hpux_check_patch(app:"OS-Core.CORE-SHLIBS", version:"B.11.31")) flag++;
if (hpux_check_patch(app:"OS-Core.CORE2-64SLIB", version:"B.11.31")) flag++;
if (hpux_check_patch(app:"OS-Core.CORE2-SHLIBS", version:"B.11.31")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:hpux_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
  • NASL familyHP-UX Local Security Checks
    NASL idHPUX_PHCO_43873.NASL
    descriptions700_800 11.11 libpam_updbe patch : A potential security vulnerability has been identified in the HP-UX running PAM using libpam_updbe in pam.conf(4). This vulnerability could allow remote users to bypass certain authentication restrictions. References: CVE-2014-7879 (SSRT101489).
    last seen2020-06-01
    modified2020-06-02
    plugin id79568
    published2014-11-26
    reporterThis script is Copyright (C) 2014 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/79568
    titleHP-UX PHCO_43873 : s700_800 11.11 libpam_updbe patch
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and patch checks in this plugin were 
# extracted from HP patch PHCO_43873. The text itself is
# copyright (C) Hewlett-Packard Development Company, L.P.
#

include("compat.inc");

if (description)
{
  script_id(79568);
  script_version("$Revision: 1.3 $");
  script_cvs_date("$Date: 2014/12/15 16:06:14 $");

  script_cve_id("CVE-2014-7879");
  script_bugtraq_id(71308);
  script_xref(name:"HP", value:"emr_na-c04511778");

  script_name(english:"HP-UX PHCO_43873 : s700_800 11.11 libpam_updbe patch");
  script_summary(english:"Checks for the patch in the swlist output");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote HP-UX host is missing a security-related patch."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"s700_800 11.11 libpam_updbe patch : 

A potential security vulnerability has been identified in the HP-UX
running PAM using libpam_updbe in pam.conf(4). This vulnerability
could allow remote users to bypass certain authentication
restrictions. References: CVE-2014-7879 (SSRT101489)."
  );
  # http://h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c04511778
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?462a1237"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Install patch PHCO_43873 or subsequent."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:S/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:ND/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:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:hp:hp-ux");

  script_set_attribute(attribute:"patch_publication_date", value:"2014/04/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/11/26");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014 Tenable Network Security, Inc.");
  script_family(english:"HP-UX Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/HP-UX/version", "Host/HP-UX/swlist");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("hpux.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/HP-UX/version")) audit(AUDIT_OS_NOT, "HP-UX");
if (!get_kb_item("Host/HP-UX/swlist")) audit(AUDIT_PACKAGE_LIST_MISSING);

if (!hpux_check_ctx(ctx:"11.11"))
{
  exit(0, "The host is not affected since PHCO_43873 applies to a different OS release.");
}

patches = make_list("PHCO_43873");
foreach patch (patches)
{
  if (hpux_installed(app:patch))
  {
    exit(0, "The host is not affected because patch "+patch+" is installed.");
  }
}


flag = 0;
if (hpux_check_patch(app:"OS-Core.ADMN-ENG-A-MAN", version:"B.11.11")) flag++;
if (hpux_check_patch(app:"OS-Core.CORE-ENG-A-MAN", version:"B.11.11")) flag++;
if (hpux_check_patch(app:"OS-Core.CORE-SHLIBS", version:"B.11.11")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:hpux_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
  • NASL familyHP-UX Local Security Checks
    NASL idHPUX_PHCO_43874.NASL
    descriptions700_800 11.23 libpam_updbe cumulative patch : A potential security vulnerability has been identified in the HP-UX running PAM using libpam_updbe in pam.conf(4). This vulnerability could allow remote users to bypass certain authentication restrictions. References: CVE-2014-7879 (SSRT101489).
    last seen2020-06-01
    modified2020-06-02
    plugin id79569
    published2014-11-26
    reporterThis script is Copyright (C) 2014 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/79569
    titleHP-UX PHCO_43874 : s700_800 11.23 libpam_updbe cumulative patch

References