CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:C/I:C/A:C
EPSS
Percentile
25.6%
The remote host is affected by the vulnerability described in GLSA-200512-18 (XnView: Privilege escalation)
Krzysiek Pawlik of Gentoo Linux discovered that the XnView package for IA32 used the DT_RPATH field insecurely, causing the dynamic loader to search for shared libraries in potentially untrusted directories.
Impact :
A local attacker could create a malicious shared object that would be loaded and executed when a user attempted to use an XnView utility.
This would allow a malicious user to effectively hijack XnView and execute arbitrary code with the privileges of the user running the program.
Workaround :
The system administrator may use the chrpath utility to remove the DT_RPATH field from the XnView utilities:
# emerge app-admin/chrpath # chrpath --delete /opt/bin/nconvert /opt/bin/nview /opt/bin/xnview
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 200512-18.
#
# The advisory text is Copyright (C) 2001-2015 Gentoo Foundation, Inc.
# and licensed under the Creative Commons - Attribution / Share Alike
# license. See http://creativecommons.org/licenses/by-sa/3.0/
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(20371);
script_version("1.15");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");
script_cve_id("CVE-2005-4595");
script_xref(name:"GLSA", value:"200512-18");
script_name(english:"GLSA-200512-18 : XnView: Privilege escalation");
script_summary(english:"Checks for updated package(s) in /var/db/pkg");
script_set_attribute(
attribute:"synopsis",
value:
"The remote Gentoo host is missing one or more security-related
patches."
);
script_set_attribute(
attribute:"description",
value:
"The remote host is affected by the vulnerability described in GLSA-200512-18
(XnView: Privilege escalation)
Krzysiek Pawlik of Gentoo Linux discovered that the XnView package for
IA32 used the DT_RPATH field insecurely, causing the dynamic loader to
search for shared libraries in potentially untrusted directories.
Impact :
A local attacker could create a malicious shared object that would be
loaded and executed when a user attempted to use an XnView utility.
This would allow a malicious user to effectively hijack XnView and
execute arbitrary code with the privileges of the user running the
program.
Workaround :
The system administrator may use the chrpath utility to remove the
DT_RPATH field from the XnView utilities:
# emerge app-admin/chrpath
# chrpath --delete /opt/bin/nconvert /opt/bin/nview /opt/bin/xnview"
);
script_set_attribute(
attribute:"see_also",
value:"https://security.gentoo.org/glsa/200512-18"
);
script_set_attribute(
attribute:"solution",
value:
"All XnView users on the x86 platform should upgrade to the latest
version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=x11-misc/xnview-1.70-r1'"
);
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:xnview");
script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");
script_set_attribute(attribute:"patch_publication_date", value:"2005/12/30");
script_set_attribute(attribute:"plugin_publication_date", value:"2005/12/31");
script_set_attribute(attribute:"vuln_publication_date", value:"2005/12/29");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2005-2021 Tenable Network Security, Inc.");
script_family(english:"Gentoo Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list", "Host/Gentoo/arch");
exit(0);
}
include("audit.inc");
include("global_settings.inc");
include("qpkg.inc");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo");
if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
ourarch = get_kb_item("Host/Gentoo/arch");
if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
if (ourarch !~ "^(x86)$") audit(AUDIT_ARCH_NOT, "x86", ourarch);
flag = 0;
if (qpkg_check(package:"x11-misc/xnview", arch:"x86", unaffected:make_list("ge 1.70-r1"), vulnerable:make_list("lt 1.70-r1"))) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:qpkg_report_get());
else security_hole(0);
exit(0);
}
else
{
tested = qpkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "XnView");
}