CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS
Percentile
81.6%
A vulnerability was discovered in the VNC server script that generates an X cookie, used by X authentication. The script generated a cookie that was not strong enough and allow an attacker to more easily guess the authentication cookie, thus obtaining unauthorized access to the VNC server.
#%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-2003:022.
# The text itself is copyright (C) Mandriva S.A.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(14007);
script_version("1.19");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");
script_cve_id("CVE-2002-1336", "CVE-2002-1511");
script_xref(name:"MDKSA", value:"2003:022");
script_name(english:"Mandrake Linux Security Advisory : vnc (MDKSA-2003:022)");
script_summary(english:"Checks rpm output for the updated packages");
script_set_attribute(
attribute:"synopsis",
value:
"The remote Mandrake Linux host is missing one or more security
updates."
);
script_set_attribute(
attribute:"description",
value:
"A vulnerability was discovered in the VNC server script that generates
an X cookie, used by X authentication. The script generated a cookie
that was not strong enough and allow an attacker to more easily guess
the authentication cookie, thus obtaining unauthorized access to the
VNC server."
);
# http://marc.theaimsgroup.com/?l=bugtraq&m=102753170201524
script_set_attribute(
attribute:"see_also",
value:"http://marc.info/?l=bugtraq&m=102753170201524"
);
script_set_attribute(attribute:"solution", value:"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:tightvnc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:tightvnc-doc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:tightvnc-server");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:vnc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:vnc-SVGALIB");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:vnc-doc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:vnc-java");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:vnc-server");
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:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:9.0");
script_set_attribute(attribute:"patch_publication_date", value:"2003/02/24");
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:"MDK7.2", cpu:"i386", reference:"vnc-3.3.3-8.4mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK7.2", cpu:"i386", reference:"vnc-SVGALIB-3.3.3-8.4mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK7.2", cpu:"i386", reference:"vnc-doc-3.3.3-8.4mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK7.2", cpu:"i386", reference:"vnc-java-3.3.3-8.4mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK7.2", cpu:"i386", reference:"vnc-server-3.3.3-8.4mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK8.0", cpu:"i386", reference:"vnc-3.3.3r2-9.3mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK8.0", cpu:"i386", reference:"vnc-doc-3.3.3r2-9.3mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK8.0", cpu:"i386", reference:"vnc-server-3.3.3r2-9.3mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK8.1", cpu:"i386", reference:"vnc-3.3.3r2-9.3mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK8.1", cpu:"i386", reference:"vnc-doc-3.3.3r2-9.3mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK8.1", cpu:"i386", reference:"vnc-server-3.3.3r2-9.3mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK8.2", cpu:"i386", reference:"vnc-3.3.3r2-9.3mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK8.2", cpu:"i386", reference:"vnc-doc-3.3.3r2-9.3mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK8.2", cpu:"i386", reference:"vnc-server-3.3.3r2-9.3mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.0", cpu:"i386", reference:"tightvnc-1.2.5-2.3mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.0", cpu:"i386", reference:"tightvnc-doc-1.2.5-2.3mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.0", cpu:"i386", reference:"tightvnc-server-1.2.5-2.3mdk", 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");