5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7 High
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
55.3%
An issue was discovered in Python through 2.7.16, 3.x through 3.5.7, 3.6.x through 3.6.9, and 3.7.x through 3.7.4. The email module wrongly parses email addresses that contain multiple @ characters. An application that uses the email module and implements some kind of checks on the From/To headers of a message could be tricked into accepting an email address that should be denied. An attack may be the same as in CVE-2019-11340 ; however, this CVE applies to Python more generally.(CVE-2019-16056)
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux 2 Security Advisory ALAS-2019-1368.
#
include('compat.inc');
if (description)
{
script_id(131237);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/04/10");
script_cve_id("CVE-2019-16056");
script_xref(name:"ALAS", value:"2019-1368");
script_name(english:"Amazon Linux 2 : python / python3 (ALAS-2019-1368)");
script_set_attribute(attribute:"synopsis", value:
"The remote Amazon Linux 2 host is missing a security update.");
script_set_attribute(attribute:"description", value:
"An issue was discovered in Python through 2.7.16, 3.x through 3.5.7,
3.6.x through 3.6.9, and 3.7.x through 3.7.4. The email module wrongly
parses email addresses that contain multiple @ characters. An
application that uses the email module and implements some kind of
checks on the From/To headers of a message could be tricked into
accepting an email address that should be denied. An attack may be the
same as in CVE-2019-11340 ; however, this CVE applies to Python more
generally.(CVE-2019-16056)");
script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/AL2/ALAS-2019-1368.html");
script_set_attribute(attribute:"solution", value:
"Run 'yum update python' to update your system.
Run 'yum update python3' to update your system.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-16056");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"vuln_publication_date", value:"2019/09/06");
script_set_attribute(attribute:"patch_publication_date", value:"2019/11/22");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/11/25");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python-debug");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python-libs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python-test");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python-tools");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python3");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python3-debug");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python3-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python3-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python3-libs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python3-test");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python3-tkinter");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python3-tools");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:tkinter");
script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux:2");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Amazon Linux Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2019-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/AmazonLinux/release", "Host/AmazonLinux/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);
release = get_kb_item("Host/AmazonLinux/release");
if (isnull(release) || !strlen(release)) audit(AUDIT_OS_NOT, "Amazon Linux");
os_ver = pregmatch(pattern: "^AL(A|\d)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Amazon Linux");
os_ver = os_ver[1];
if (os_ver != "2")
{
if (os_ver == 'A') os_ver = 'AMI';
audit(AUDIT_OS_NOT, "Amazon Linux 2", "Amazon Linux " + os_ver);
}
if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
flag = 0;
if (rpm_check(release:"AL2", reference:"python-2.7.16-4.amzn2")) flag++;
if (rpm_check(release:"AL2", reference:"python-debug-2.7.16-4.amzn2")) flag++;
if (rpm_check(release:"AL2", reference:"python-debuginfo-2.7.16-4.amzn2")) flag++;
if (rpm_check(release:"AL2", reference:"python-devel-2.7.16-4.amzn2")) flag++;
if (rpm_check(release:"AL2", reference:"python-libs-2.7.16-4.amzn2")) flag++;
if (rpm_check(release:"AL2", reference:"python-test-2.7.16-4.amzn2")) flag++;
if (rpm_check(release:"AL2", reference:"python-tools-2.7.16-4.amzn2")) flag++;
if (rpm_check(release:"AL2", reference:"python3-3.7.4-1.amzn2.0.3")) flag++;
if (rpm_check(release:"AL2", reference:"python3-debug-3.7.4-1.amzn2.0.3")) flag++;
if (rpm_check(release:"AL2", reference:"python3-debuginfo-3.7.4-1.amzn2.0.3")) flag++;
if (rpm_check(release:"AL2", reference:"python3-devel-3.7.4-1.amzn2.0.3")) flag++;
if (rpm_check(release:"AL2", reference:"python3-libs-3.7.4-1.amzn2.0.3")) flag++;
if (rpm_check(release:"AL2", reference:"python3-test-3.7.4-1.amzn2.0.3")) flag++;
if (rpm_check(release:"AL2", reference:"python3-tkinter-3.7.4-1.amzn2.0.3")) flag++;
if (rpm_check(release:"AL2", reference:"python3-tools-3.7.4-1.amzn2.0.3")) flag++;
if (rpm_check(release:"AL2", reference:"tkinter-2.7.16-4.amzn2")) flag++;
if (flag)
{
if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
else security_warning(0);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, "python / python-debug / python-debuginfo / python-devel / etc");
}
Vendor | Product | Version | CPE |
---|---|---|---|
amazon | linux | python | p-cpe:/a:amazon:linux:python |
amazon | linux | python-debug | p-cpe:/a:amazon:linux:python-debug |
amazon | linux | python-debuginfo | p-cpe:/a:amazon:linux:python-debuginfo |
amazon | linux | python-devel | p-cpe:/a:amazon:linux:python-devel |
amazon | linux | python-libs | p-cpe:/a:amazon:linux:python-libs |
amazon | linux | python-test | p-cpe:/a:amazon:linux:python-test |
amazon | linux | python-tools | p-cpe:/a:amazon:linux:python-tools |
amazon | linux | python3 | p-cpe:/a:amazon:linux:python3 |
amazon | linux | python3-debug | p-cpe:/a:amazon:linux:python3-debug |
amazon | linux | python3-debuginfo | p-cpe:/a:amazon:linux:python3-debuginfo |
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:L/Au:N/C:P/I:N/A:N
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7 High
AI Score
Confidence
High
0.002 Low
EPSS
Percentile
55.3%