10 High
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:N/C:C/I:C/A:C
0.261 Low
EPSS
Percentile
96.8%
Multiple buffer overflows exist in the krb5_aname_to_localname() library function that if exploited could lead to unauthorized root privileges. In order to exploit this flaw, an attacker must first successfully authenticate to a vulnerable service, which must be configured to enable the explicit mapping or rules-based mapping functionality of krb5_aname_to_localname, which is not a default configuration.
Mandrakesoft encourages all users to upgrade to these patched krb5 packages.
Update :
The original patch provided contained a bug where rule-based entries on systems without HAVE_REGCOMP would not work. These updated packages provide the second patch provided by Kerberos development team which fixes that behaviour.
#%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-2004:056.
# The text itself is copyright (C) Mandriva S.A.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(14155);
script_version("1.22");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");
script_cve_id("CVE-2004-0523");
script_xref(name:"MDKSA", value:"2004:056-1");
script_name(english:"Mandrake Linux Security Advisory : krb5 (MDKSA-2004:056-1)");
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:
"Multiple buffer overflows exist in the krb5_aname_to_localname()
library function that if exploited could lead to unauthorized root
privileges. In order to exploit this flaw, an attacker must first
successfully authenticate to a vulnerable service, which must be
configured to enable the explicit mapping or rules-based mapping
functionality of krb5_aname_to_localname, which is not a default
configuration.
Mandrakesoft encourages all users to upgrade to these patched krb5
packages.
Update :
The original patch provided contained a bug where rule-based entries
on systems without HAVE_REGCOMP would not work. These updated packages
provide the second patch provided by Kerberos development team which
fixes that behaviour."
);
# http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2004-001-an_to_ln.txt
script_set_attribute(
attribute:"see_also",
value:"http://www.nessus.org/u?6c54187f"
);
script_set_attribute(attribute:"solution", value:"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/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:ftp-client-krb5");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:ftp-server-krb5");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:krb5-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:krb5-libs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:krb5-server");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:krb5-workstation");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:lib64krb51");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:lib64krb51-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:libkrb51");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:libkrb51-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:telnet-client-krb5");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:telnet-server-krb5");
script_set_attribute(attribute:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:10.0");
script_set_attribute(attribute:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:9.1");
script_set_attribute(attribute:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:9.2");
script_set_attribute(attribute:"patch_publication_date", value:"2004/06/09");
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:"MDK10.0", reference:"ftp-client-krb5-1.3-6.2.100mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK10.0", reference:"ftp-server-krb5-1.3-6.2.100mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK10.0", reference:"krb5-server-1.3-6.2.100mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK10.0", reference:"krb5-workstation-1.3-6.2.100mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK10.0", cpu:"amd64", reference:"lib64krb51-1.3-6.2.100mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK10.0", cpu:"amd64", reference:"lib64krb51-devel-1.3-6.2.100mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK10.0", cpu:"i386", reference:"libkrb51-1.3-6.2.100mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK10.0", cpu:"i386", reference:"libkrb51-devel-1.3-6.2.100mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK10.0", reference:"telnet-client-krb5-1.3-6.2.100mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK10.0", reference:"telnet-server-krb5-1.3-6.2.100mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.1", cpu:"i386", reference:"ftp-client-krb5-1.2.7-1.3.91mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.1", cpu:"i386", reference:"ftp-server-krb5-1.2.7-1.3.91mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.1", cpu:"i386", reference:"krb5-devel-1.2.7-1.3.91mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.1", cpu:"i386", reference:"krb5-libs-1.2.7-1.3.91mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.1", cpu:"i386", reference:"krb5-server-1.2.7-1.3.91mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.1", cpu:"i386", reference:"krb5-workstation-1.2.7-1.3.91mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.1", cpu:"i386", reference:"telnet-client-krb5-1.2.7-1.3.91mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.1", cpu:"i386", reference:"telnet-server-krb5-1.2.7-1.3.91mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.2", reference:"ftp-client-krb5-1.3-3.2.92mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.2", reference:"ftp-server-krb5-1.3-3.2.92mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.2", reference:"krb5-server-1.3-3.2.92mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.2", reference:"krb5-workstation-1.3-3.2.92mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.2", cpu:"amd64", reference:"lib64krb51-1.3-3.2.92mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.2", cpu:"amd64", reference:"lib64krb51-devel-1.3-3.2.92mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.2", cpu:"i386", reference:"libkrb51-1.3-3.2.92mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.2", cpu:"i386", reference:"libkrb51-devel-1.3-3.2.92mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.2", reference:"telnet-client-krb5-1.3-3.2.92mdk", yank:"mdk")) flag++;
if (rpm_check(release:"MDK9.2", reference:"telnet-server-krb5-1.3-3.2.92mdk", 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 | ftp-client-krb5 | p-cpe:/a:mandriva:linux:ftp-client-krb5 |
mandriva | linux | ftp-server-krb5 | p-cpe:/a:mandriva:linux:ftp-server-krb5 |
mandriva | linux | krb5-devel | p-cpe:/a:mandriva:linux:krb5-devel |
mandriva | linux | krb5-libs | p-cpe:/a:mandriva:linux:krb5-libs |
mandriva | linux | krb5-server | p-cpe:/a:mandriva:linux:krb5-server |
mandriva | linux | krb5-workstation | p-cpe:/a:mandriva:linux:krb5-workstation |
mandriva | linux | lib64krb51 | p-cpe:/a:mandriva:linux:lib64krb51 |
mandriva | linux | lib64krb51-devel | p-cpe:/a:mandriva:linux:lib64krb51-devel |
mandriva | linux | libkrb51 | p-cpe:/a:mandriva:linux:libkrb51 |
mandriva | linux | libkrb51-devel | p-cpe:/a:mandriva:linux:libkrb51-devel |