5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
6.9 Medium
AI Score
Confidence
Low
0.003 Low
EPSS
Percentile
65.3%
The remote SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2024:1149-1 advisory.
Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The package checks in this plugin were extracted from
# SUSE update advisory SUSE-SU-2024:1149-1. The text itself
# is copyright (C) SUSE.
##
include('compat.inc');
if (description)
{
script_id(193042);
script_version("1.0");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/09");
script_cve_id("CVE-2023-51764");
script_xref(name:"SuSE", value:"SUSE-SU-2024:1149-1");
script_name(english:"SUSE SLES12 Security Update : postfix (SUSE-SU-2024:1149-1)");
script_set_attribute(attribute:"synopsis", value:
"The remote SUSE host is missing a security update.");
script_set_attribute(attribute:"description", value:
"The remote SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by a vulnerability as referenced
in the SUSE-SU-2024:1149-1 advisory.
- Postfix through 3.8.5 allows SMTP smuggling unless configured with
smtpd_data_restrictions=reject_unauth_pipelining and smtpd_discard_ehlo_keywords=chunking (or certain
other options that exist in recent versions). Remote attackers can use a published exploitation technique
to inject e-mail messages with a spoofed MAIL FROM address, allowing bypass of an SPF protection
mechanism. This occurs because Postfix supports <LF>.<CR><LF> but some other popular e-mail servers do
not. To prevent attack variants (by always disallowing <LF> without <CR>), a different solution is
required, such as the smtpd_forbid_bare_newline=yes option with a Postfix minimum version of 3.5.23,
3.6.13, 3.7.9, 3.8.4, or 3.9. (CVE-2023-51764)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1218304");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1218314");
script_set_attribute(attribute:"see_also", value:"https://lists.suse.com/pipermail/sle-updates/2024-April/034873.html");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2023-51764");
script_set_attribute(attribute:"solution", value:
"Update the affected postfix, postfix-devel, postfix-doc and / or postfix-mysql packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-51764");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2023/12/24");
script_set_attribute(attribute:"patch_publication_date", value:"2024/04/08");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/04/09");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:postfix");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:postfix-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:postfix-doc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:postfix-mysql");
script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"SuSE Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list");
exit(0);
}
include('rpm.inc');
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item("Host/SuSE/release");
if (isnull(os_release) || os_release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
var os_ver = pregmatch(pattern: "^(SLE(S|D)(?:_SAP)?\d+)", string:os_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'SUSE');
os_ver = os_ver[1];
if (! preg(pattern:"^(SLES12|SLES_SAP12)$", string:os_ver)) audit(AUDIT_OS_NOT, 'SUSE SLES12 / SLES_SAP12', 'SUSE (' + os_ver + ')');
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'SUSE (' + os_ver + ')', cpu);
var service_pack = get_kb_item("Host/SuSE/patchlevel");
if (isnull(service_pack)) service_pack = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES12 SP5", os_ver + " SP" + service_pack);
if (os_ver == "SLES_SAP12" && (! preg(pattern:"^(5)$", string:service_pack))) audit(AUDIT_OS_NOT, "SLES_SAP12 SP5", os_ver + " SP" + service_pack);
var pkgs = [
{'reference':'postfix-3.2.10-3.30.1', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
{'reference':'postfix-devel-3.2.10-3.30.1', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
{'reference':'postfix-doc-3.2.10-3.30.1', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
{'reference':'postfix-mysql-3.2.10-3.30.1', 'sp':'5', 'release':'SLES_SAP12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['SLES_SAP-release-12.5']},
{'reference':'postfix-devel-3.2.10-3.30.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sle-sdk-release-12.5', 'sles-release-12.5']},
{'reference':'postfix-3.2.10-3.30.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
{'reference':'postfix-doc-3.2.10-3.30.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']},
{'reference':'postfix-mysql-3.2.10-3.30.1', 'sp':'5', 'release':'SLES12', 'rpm_spec_vers_cmp':TRUE, 'exists_check':['sles-release-12.5']}
];
var ltss_caveat_required = FALSE;
var flag = 0;
foreach var package_array ( pkgs ) {
var reference = NULL;
var _release = NULL;
var sp = NULL;
var _cpu = NULL;
var exists_check = NULL;
var rpm_spec_vers_cmp = NULL;
if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
if (!empty_or_null(package_array['release'])) _release = package_array['release'];
if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
if (!empty_or_null(package_array['cpu'])) _cpu = package_array['cpu'];
if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
if (reference && _release) {
if (exists_check) {
var check_flag = 0;
foreach var check (exists_check) {
if (!rpm_exists(release:_release, rpm:check)) continue;
check_flag++;
}
if (!check_flag) continue;
}
if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, rpm_spec_vers_cmp:rpm_spec_vers_cmp)) flag++;
}
}
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : rpm_report_get()
);
exit(0);
}
else
{
var tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'postfix / postfix-devel / postfix-doc / postfix-mysql');
}
Vendor | Product | Version | CPE |
---|---|---|---|
novell | suse_linux | 12 | cpe:/o:novell:suse_linux:12 |
novell | suse_linux | postfix | p-cpe:/a:novell:suse_linux:postfix |
novell | suse_linux | postfix-mysql | p-cpe:/a:novell:suse_linux:postfix-mysql |
novell | suse_linux | postfix-doc | p-cpe:/a:novell:suse_linux:postfix-doc |
novell | suse_linux | postfix-devel | p-cpe:/a:novell:suse_linux:postfix-devel |
5.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
6.9 Medium
AI Score
Confidence
Low
0.003 Low
EPSS
Percentile
65.3%