The uudecode utility creates output files without checking to see if it is about to write to a symlink or pipe. This could be exploited by a local attacker to overwrite files or lead to privilege escalation if users decode data into share directories, such as /tmp. This update fixes this vulnerability by checking to see if the destination output file is a symlink or pipe.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Mandrake Linux Security Advisory MDKSA-2002:052.
# The text itself is copyright (C) Mandriva S.A.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(13955);
script_version("1.18");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");
script_cve_id("CVE-2002-0178");
script_xref(name:"MDKSA", value:"2002:052");
script_name(english:"Mandrake Linux Security Advisory : sharutils (MDKSA-2002:052)");
script_summary(english:"Checks rpm output for the updated package");
script_set_attribute(
attribute:"synopsis",
value:"The remote Mandrake Linux host is missing a security update."
);
script_set_attribute(
attribute:"description",
value:
"The uudecode utility creates output files without checking to see if
it is about to write to a symlink or pipe. This could be exploited by
a local attacker to overwrite files or lead to privilege escalation if
users decode data into share directories, such as /tmp. This update
fixes this vulnerability by checking to see if the destination output
file is a symlink or pipe."
);
script_set_attribute(
attribute:"see_also",
value:"http://www.aerasec.de/security/index.html?id=ae-200204-033&lang=en"
);
script_set_attribute(
attribute:"solution",
value:"Update the affected sharutils package."
);
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:mandriva:linux:sharutils");
script_set_attribute(attribute:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:7.1");
script_set_attribute(attribute:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:7.2");
script_set_attribute(attribute:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:8.0");
script_set_attribute(attribute:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:8.1");
script_set_attribute(attribute:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:8.2");
script_set_attribute(attribute:"patch_publication_date", value:"2002/08/14");
script_set_attribute(attribute:"plugin_publication_date", value:"2004/07/31");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2004-2021 Tenable Network Security, Inc.");
script_family(english:"Mandriva Local Security Checks");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/Mandrake/release", "Host/Mandrake/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);
if (!get_kb_item("Host/Mandrake/release")) audit(AUDIT_OS_NOT, "Mandriva / Mandake Linux");
if (!get_kb_item("Host/Mandrake/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^(amd64|i[3-6]86|x86_64)$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Mandriva / Mandrake Linux", cpu);
flag = 0;
if (rpm_check(release:"MDK7.1", cpu:"i386", reference:"sharutils-4.2.1-8.1mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK7.2", cpu:"i386", reference:"sharutils-4.2.1-8.1mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK8.0", cpu:"i386", reference:"sharutils-4.2.1-8.1mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK8.1", cpu:"i386", reference:"sharutils-4.2.1-8.1mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK8.2", cpu:"i386", reference:"sharutils-4.2.1-8.1mdk", yank:"mdk")) flag++;
if (flag)
{
if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
else security_hole(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
Vendor | Product | Version | CPE |
---|---|---|---|
mandriva | linux | sharutils | p-cpe:/a:mandriva:linux:sharutils |
mandrakesoft | mandrake_linux | 7.1 | cpe:/o:mandrakesoft:mandrake_linux:7.1 |
mandrakesoft | mandrake_linux | 7.2 | cpe:/o:mandrakesoft:mandrake_linux:7.2 |
mandrakesoft | mandrake_linux | 8.0 | cpe:/o:mandrakesoft:mandrake_linux:8.0 |
mandrakesoft | mandrake_linux | 8.1 | cpe:/o:mandrakesoft:mandrake_linux:8.1 |
mandrakesoft | mandrake_linux | 8.2 | cpe:/o:mandrakesoft:mandrake_linux:8.2 |