According to the versions of the dovecot packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :
In Dovecot before 2.3.11.3, uncontrolled recursion in submission, lmtp, and lda allows remote attackers to cause a denial of service (resource consumption) via a crafted e-mail message with deeply nested MIME parts.(CVE-2020-12100)
The ssl-proxy-openssl.c function in Dovecot before 2.2.17, when SSLv3 is disabled, allow remote attackers to cause a denial of service (login process crash) via vectors related to handshake failures.(CVE-2015-3420)
Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(145207);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/29");
script_cve_id("CVE-2015-3420", "CVE-2020-12100");
script_bugtraq_id(74335);
script_name(english:"EulerOS 2.0 SP3 : dovecot (EulerOS-SA-2021-1064)");
script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS host is missing multiple security updates.");
script_set_attribute(attribute:"description", value:
"According to the versions of the dovecot packages installed, the
EulerOS installation on the remote host is affected by the following
vulnerabilities :
- In Dovecot before 2.3.11.3, uncontrolled recursion in
submission, lmtp, and lda allows remote attackers to
cause a denial of service (resource consumption) via a
crafted e-mail message with deeply nested MIME
parts.(CVE-2020-12100)
- The ssl-proxy-openssl.c function in Dovecot before
2.2.17, when SSLv3 is disabled, allow remote attackers
to cause a denial of service (login process crash) via
vectors related to handshake failures.(CVE-2015-3420)
Note that Tenable Network Security has extracted the preceding
description block directly from the EulerOS security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
# https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2021-1064
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ad7d8830");
script_set_attribute(attribute:"solution", value:
"Update the affected dovecot packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
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:N/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-12100");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"patch_publication_date", value:"2021/01/18");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/01/20");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:dovecot");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:dovecot-mysql");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:dovecot-pgsql");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:dovecot-pigeonhole");
script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Huawei Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2021-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/sp");
script_exclude_keys("Host/EulerOS/uvp_version");
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);
release = get_kb_item("Host/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
if (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0");
sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(3)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP3");
uvp = get_kb_item("Host/EulerOS/uvp_version");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP3", "EulerOS UVP " + uvp);
if (!get_kb_item("Host/EulerOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu);
flag = 0;
pkgs = ["dovecot-2.2.10-5.h10",
"dovecot-mysql-2.2.10-5.h10",
"dovecot-pgsql-2.2.10-5.h10",
"dovecot-pigeonhole-2.2.10-5.h10"];
foreach (pkg in pkgs)
if (rpm_check(release:"EulerOS-2.0", sp:"3", reference:pkg)) flag++;
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : rpm_report_get()
);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "dovecot");
}
Vendor | Product | Version | CPE |
---|---|---|---|
huawei | euleros | dovecot | p-cpe:/a:huawei:euleros:dovecot |
huawei | euleros | dovecot-mysql | p-cpe:/a:huawei:euleros:dovecot-mysql |
huawei | euleros | dovecot-pgsql | p-cpe:/a:huawei:euleros:dovecot-pgsql |
huawei | euleros | dovecot-pigeonhole | p-cpe:/a:huawei:euleros:dovecot-pigeonhole |
huawei | euleros | 2.0 | cpe:/o:huawei:euleros:2.0 |