Vulnerabilities > CVE-2014-0595 - Buffer Errors vulnerability in Novell Open Enterprise Server 11.0

047910
CVSS 2.6 - LOW
Attack vector
LOCAL
Attack complexity
HIGH
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
NONE
local
high complexity
novell
CWE-119
nessus

Summary

/opt/novell/ncl/bin/nwrights in Novell Client for Linux in Novell Open Enterprise Server (OES) 11 Linux SP2 does not properly manage a certain array, which allows local users to obtain the S permission in opportunistic circumstances by leveraging the granting of the F permission by an administrator.

Vulnerable Configurations

Part Description Count
OS
Novell
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.

Nessus

NASL familySuSE Local Security Checks
NASL idSUSE_11_NOVELL-UI-201405-140519.NASL
descriptionPackages novell-ui-base and novell-qtgui were updated to prevent erroneous rights assignment when a user is granted
last seen2020-06-05
modified2014-06-26
plugin id76248
published2014-06-26
reporterThis script is Copyright (C) 2014-2020 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/76248
titleSuSE 11.3 Security Update : novell-qtgui, novell-ui-base (SAT Patch Number 9276)
code
#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from SuSE 11 update information. The text itself is
# copyright (C) Novell, Inc.
#

include("compat.inc");

if (description)
{
  script_id(76248);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04");

  script_cve_id("CVE-2014-0595");

  script_name(english:"SuSE 11.3 Security Update : novell-qtgui, novell-ui-base (SAT Patch Number 9276)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote SuSE 11 host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Packages novell-ui-base and novell-qtgui were updated to prevent
erroneous rights assignment when a user is granted 'File Scan' rights
(F). In this case nwrights was assigning Supervisor (S) rights.
(CVE-2014-0595)

Further information is available at
https://bugzilla.novell.com/show_bug.cgi?id=872796 ."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.novell.com/show_bug.cgi?id=872796"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://support.novell.com/security/cve/CVE-2014-0595.html"
  );
  script_set_attribute(attribute:"solution", value:"Apply SAT patch number 9276.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:H/Au:N/C:P/I:P/A:N");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:11:novell-qtgui");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:11:novell-qtgui-cli");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:11:novell-ui-base");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:11");

  script_set_attribute(attribute:"patch_publication_date", value:"2014/05/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/06/26");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014-2020 Tenable Network Security, Inc.");
  script_family(english:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list");

  exit(0);
}


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


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release !~ "^(SLED|SLES)11") audit(AUDIT_OS_NOT, "SuSE 11");
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SuSE 11", cpu);

pl = get_kb_item("Host/SuSE/patchlevel");
if (isnull(pl) || int(pl) != 3) audit(AUDIT_OS_NOT, "SuSE 11.3");


flag = 0;
if (rpm_check(release:"SLED11", sp:3, cpu:"i586", reference:"novell-qtgui-3.0.0-0.20.1")) flag++;
if (rpm_check(release:"SLED11", sp:3, cpu:"i586", reference:"novell-qtgui-cli-3.0.0-0.20.1")) flag++;
if (rpm_check(release:"SLED11", sp:3, cpu:"i586", reference:"novell-ui-base-3.0.0-0.10.1")) flag++;
if (rpm_check(release:"SLED11", sp:3, cpu:"x86_64", reference:"novell-qtgui-3.0.0-0.20.1")) flag++;
if (rpm_check(release:"SLED11", sp:3, cpu:"x86_64", reference:"novell-qtgui-cli-3.0.0-0.20.1")) flag++;
if (rpm_check(release:"SLED11", sp:3, cpu:"x86_64", reference:"novell-ui-base-3.0.0-0.10.1")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_note(port:0, extra:rpm_report_get());
  else security_note(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");