A vulnerability has been discovered and corrected in krb5 :
The process_tgs_req function in do_tgs_req.c in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.9 through 1.9.2 allows remote authenticated users to cause a denial of service (NULL pointer dereference and daemon crash) via a crafted TGS request that triggers an error other than the KRB5_KDB_NOENTRY error (CVE-2011-1530).
The updated packages have been patched to correct this issue.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Mandriva Linux Security Advisory MDVSA-2011:184.
# The text itself is copyright (C) Mandriva S.A.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(61939);
script_version("1.9");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");
script_cve_id("CVE-2011-1530");
script_bugtraq_id(50929);
script_xref(name:"MDVSA", value:"2011:184");
script_name(english:"Mandriva Linux Security Advisory : krb5 (MDVSA-2011:184)");
script_summary(english:"Checks rpm output for the updated packages");
script_set_attribute(
attribute:"synopsis",
value:
"The remote Mandriva Linux host is missing one or more security
updates."
);
script_set_attribute(
attribute:"description",
value:
"A vulnerability has been discovered and corrected in krb5 :
The process_tgs_req function in do_tgs_req.c in the Key Distribution
Center (KDC) in MIT Kerberos 5 (aka krb5) 1.9 through 1.9.2 allows
remote authenticated users to cause a denial of service (NULL pointer
dereference and daemon crash) via a crafted TGS request that triggers
an error other than the KRB5_KDB_NOENTRY error (CVE-2011-1530).
The updated packages have been patched to correct this issue."
);
script_set_attribute(
attribute:"see_also",
value:"http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-007.txt"
);
script_set_attribute(attribute:"solution", value:"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:N/I:N/A:C");
script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:krb5");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:krb5-pkinit-openssl");
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-server-ldap");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:krb5-workstation");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:lib64krb53");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:lib64krb53-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:libkrb53");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:libkrb53-devel");
script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:linux:2011");
script_set_attribute(attribute:"patch_publication_date", value:"2011/12/12");
script_set_attribute(attribute:"plugin_publication_date", value:"2012/09/06");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2012-2021 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:"MDK2011", reference:"krb5-1.9.1-1.2-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"krb5-pkinit-openssl-1.9.1-1.2-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"krb5-server-1.9.1-1.2-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"krb5-server-ldap-1.9.1-1.2-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", reference:"krb5-workstation-1.9.1-1.2-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", cpu:"x86_64", reference:"lib64krb53-1.9.1-1.2-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", cpu:"x86_64", reference:"lib64krb53-devel-1.9.1-1.2-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", cpu:"i386", reference:"libkrb53-1.9.1-1.2-mdv2011.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2011", cpu:"i386", reference:"libkrb53-devel-1.9.1-1.2-mdv2011.0", yank:"mdv")) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
else security_warning(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
Vendor | Product | Version | CPE |
---|---|---|---|
mandriva | linux | krb5 | p-cpe:/a:mandriva:linux:krb5 |
mandriva | linux | krb5-pkinit-openssl | p-cpe:/a:mandriva:linux:krb5-pkinit-openssl |
mandriva | linux | krb5-server | p-cpe:/a:mandriva:linux:krb5-server |
mandriva | linux | krb5-server-ldap | p-cpe:/a:mandriva:linux:krb5-server-ldap |
mandriva | linux | krb5-workstation | p-cpe:/a:mandriva:linux:krb5-workstation |
mandriva | linux | lib64krb53 | p-cpe:/a:mandriva:linux:lib64krb53 |
mandriva | linux | lib64krb53-devel | p-cpe:/a:mandriva:linux:lib64krb53-devel |
mandriva | linux | libkrb53 | p-cpe:/a:mandriva:linux:libkrb53 |
mandriva | linux | libkrb53-devel | p-cpe:/a:mandriva:linux:libkrb53-devel |
mandriva | linux | 2011 | cpe:/o:mandriva:linux:2011 |