The remote host is affected by the vulnerability described in GLSA-200512-02 (Webmin, Usermin: Format string vulnerability)
Jack Louis discovered that the Webmin and Usermin 'miniserv.pl' web server component is vulnerable to a Perl format string vulnerability. Login with the supplied username is logged via the Perl 'syslog' facility in an unsafe manner.
Impact :
A remote attacker can trigger this vulnerability via a specially crafted username containing format string data. This can be exploited to consume a large amount of CPU and memory resources on a vulnerable system, and possibly to execute arbitrary code of the attacker's choice with the permissions of the user running Webmin.
Workaround :
There is no known workaround at this time.
#%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 200512-02.
#
# 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(20281);
script_version("1.16");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");
script_cve_id("CVE-2005-3912");
script_xref(name:"GLSA", value:"200512-02");
script_name(english:"GLSA-200512-02 : Webmin, Usermin: Format string vulnerability");
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-200512-02
(Webmin, Usermin: Format string vulnerability)
Jack Louis discovered that the Webmin and Usermin 'miniserv.pl'
web server component is vulnerable to a Perl format string
vulnerability. Login with the supplied username is logged via the Perl
'syslog' facility in an unsafe manner.
Impact :
A remote attacker can trigger this vulnerability via a specially
crafted username containing format string data. This can be exploited
to consume a large amount of CPU and memory resources on a vulnerable
system, and possibly to execute arbitrary code of the attacker's choice
with the permissions of the user running Webmin.
Workaround :
There is no known workaround at this time."
);
# http://www.dyadsecurity.com/webmin-0001.html
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?e5db4928"
);
script_set_attribute(
attribute:"see_also",
value:"https://security.gentoo.org/glsa/200512-02"
);
script_set_attribute(
attribute:"solution",
value:
"All Webmin users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=app-admin/webmin-1.250'
All Usermin users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose '>=app-admin/usermin-1.180'"
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"exploit_framework_core", value:"true");
script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
script_set_attribute(attribute:"canvas_package", value:'CANVAS');
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:usermin");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:webmin");
script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");
script_set_attribute(attribute:"patch_publication_date", value:"2005/12/07");
script_set_attribute(attribute:"plugin_publication_date", value:"2005/12/08");
script_set_attribute(attribute:"vuln_publication_date", value:"2005/11/29");
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");
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);
flag = 0;
if (qpkg_check(package:"app-admin/usermin", unaffected:make_list("ge 1.180"), vulnerable:make_list("lt 1.180"))) flag++;
if (qpkg_check(package:"app-admin/webmin", unaffected:make_list("ge 1.250"), vulnerable:make_list("lt 1.250"))) 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, "Webmin / Usermin");
}