Vulnerabilities > CVE-2015-0530 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in EMC Networker

047910
CVSS 7.2 - HIGH
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
COMPLETE
Integrity impact
COMPLETE
Availability impact
COMPLETE
local
low complexity
emc
CWE-119
nessus

Summary

Buffer overflow in an unspecified function in nsr_render_log in EMC NetWorker before 8.0.4.3, 8.1.x before 8.1.2.6, and 8.2.x before 8.2.1.2 allows local users to gain privileges via unknown vectors.

Vulnerable Configurations

Part Description Count
Application
Emc
116

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 familyWindows
NASL idEMC_NETWORKER_ESA_2015-069.NASL
descriptionThe EMC NetWorker installed on the remote Windows host is a version prior to 8.0.4.3, or version 8.1.x prior to 8.1.2.6, or 8.2.x prior to 8.2.1.2 . It is, therefore, affected by a buffer overflow flaw in the nsr_render_log command-line interface. A local attacker can exploit this to execute arbitrary code with root privileges on all EMC Networker managed hosts.
last seen2020-06-01
modified2020-06-02
plugin id83032
published2015-04-23
reporterThis script is Copyright (C) 2015-2018 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/83032
titleEMC NetWorker nsr_render_log Local Privilege Escalation
code
#
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(83032);
  script_version("1.7");
  script_cvs_date("Date: 2018/11/15 20:50:26");

  script_cve_id("CVE-2015-0530");
  script_bugtraq_id(74164);

  script_name(english:"EMC NetWorker nsr_render_log Local Privilege Escalation");
  script_summary(english:"Checks the version of EMC NetWorker.");

  script_set_attribute(attribute:"synopsis", value:
"The remote Windows host has an application installed that is affected
by a local privilege escalation vulnerability.");
  script_set_attribute(attribute:"description", value:
"The EMC NetWorker installed on the remote Windows host is a version
prior to 8.0.4.3, or version 8.1.x prior to 8.1.2.6, or 8.2.x prior to
8.2.1.2 . It is, therefore, affected by a buffer overflow flaw in the
nsr_render_log command-line interface. A local attacker can exploit
this to execute arbitrary code with root privileges on all EMC
Networker managed hosts.");
  script_set_attribute(attribute:"see_also", value:"https://seclists.org/bugtraq/2015/Apr/att-103/ESA-2015-069.txt");
  script_set_attribute(attribute:"solution", value:
"Upgrade to EMC NetWorker 8.0.4.3 / 8.1.2.6 / 8.2.1.2 or later.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/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:"vuln_publication_date", value:"2015/04/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/04/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/04/23");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:emc:networker");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows");

  script_copyright(english:"This script is Copyright (C) 2015-2018 Tenable Network Security, Inc.");

  script_dependencies("emc_networker_installed.nasl");
  script_require_keys("installed_sw/EMC NetWorker");

  exit(0);
}

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

appname  = "EMC NetWorker";
install  = get_single_install(app_name:appname, exit_if_unknown_ver:TRUE);
version  = install['version'];
path     = install['path'];

fix = NULL;
if (ver_compare(ver:version, fix:'8.0.4.3', strict:FALSE) < 0)
  fix = '8.0.4.3';
else if (version =~ "^8\.1\." && ver_compare(ver:version, fix:'8.1.2.6', strict:FALSE) < 0)
  fix = '8.1.2.6';
else if (version =~ "^8\.2\." && ver_compare(ver:version, fix:'8.2.1.2', strict:FALSE) < 0)
  fix = '8.2.1.2';
else
  audit(AUDIT_INST_PATH_NOT_VULN, 'EMC NetWorker', version, path);

port = get_kb_item('SMB/transport');
if (!port) port = 445;

if (report_verbosity > 0)
{
  report =
    '\n  Path              : ' + path +
    '\n  Installed version : ' + version +
    '\n  Fixed version     : ' + fix +
    '\n';
  security_hole(port:port, extra:report);
}
else security_hole(port);