In Git before 2.13.7, 2.14.x before 2.14.4, 2.15.x before 2.15.2, 2.16.x before 2.16.4, and 2.17.x before 2.17.1, code to sanity-check pathnames on NTFS can result in reading out-of-bounds memory.(CVE-2018-11233)
In Git before 2.13.7, 2.14.x before 2.14.4, 2.15.x before 2.15.2, 2.16.x before 2.16.4, and 2.17.x before 2.17.1, remote code execution can occur. With a crafted .gitmodules file, a malicious project can execute an arbitrary script on a machine that runs ‘git clone
–recurse-submodules’ because submodule ‘names’ are obtained from this file, and then appended to $GIT_DIR/modules, leading to directory traversal with ‘…/’ in a name. Finally, post-checkout hooks from a submodule are executed, bypassing the intended design in which hooks are not obtained from a remote server.(CVE-2018-11235)
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux 2 Security Advisory ALAS-2018-1035.
#
include("compat.inc");
if (description)
{
script_id(110452);
script_version("1.4");
script_cvs_date("Date: 2019/04/05 23:25:05");
script_cve_id("CVE-2018-11233", "CVE-2018-11235");
script_xref(name:"ALAS", value:"2018-1035");
script_name(english:"Amazon Linux 2 : git (ALAS-2018-1035)");
script_summary(english:"Checks rpm output for the updated packages");
script_set_attribute(
attribute:"synopsis",
value:"The remote Amazon Linux 2 host is missing a security update."
);
script_set_attribute(
attribute:"description",
value:
"In Git before 2.13.7, 2.14.x before 2.14.4, 2.15.x before 2.15.2,
2.16.x before 2.16.4, and 2.17.x before 2.17.1, code to sanity-check
pathnames on NTFS can result in reading out-of-bounds
memory.(CVE-2018-11233)
In Git before 2.13.7, 2.14.x before 2.14.4, 2.15.x before 2.15.2,
2.16.x before 2.16.4, and 2.17.x before 2.17.1, remote code execution
can occur. With a crafted .gitmodules file, a malicious project can
execute an arbitrary script on a machine that runs 'git clone
--recurse-submodules' because submodule 'names' are obtained from this
file, and then appended to $GIT_DIR/modules, leading to directory
traversal with '../' in a name. Finally, post-checkout hooks from a
submodule are executed, bypassing the intended design in which hooks
are not obtained from a remote server.(CVE-2018-11235)"
);
script_set_attribute(
attribute:"see_also",
value:"https://alas.aws.amazon.com/AL2/ALAS-2018-1035.html"
);
script_set_attribute(
attribute:"solution",
value:"Run 'yum update git' to update your system."
);
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/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:amazon:linux:git");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:git-all");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:git-core");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:git-core-doc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:git-cvs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:git-daemon");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:git-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:git-email");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:git-gnome-keyring");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:git-gui");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:git-p4");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:git-svn");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:gitk");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:gitweb");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:perl-Git");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:perl-Git-SVN");
script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux:2");
script_set_attribute(attribute:"patch_publication_date", value:"2018/06/07");
script_set_attribute(attribute:"plugin_publication_date", value:"2018/06/12");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_family(english:"Amazon Linux Local Security Checks");
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", cpu:"x86_64", reference:"git-2.14.4-1.amzn2")) flag++;
if (rpm_check(release:"AL2", reference:"git-all-2.14.4-1.amzn2")) flag++;
if (rpm_check(release:"AL2", cpu:"x86_64", reference:"git-core-2.14.4-1.amzn2")) flag++;
if (rpm_check(release:"AL2", cpu:"x86_64", reference:"git-core-doc-2.14.4-1.amzn2")) flag++;
if (rpm_check(release:"AL2", reference:"git-cvs-2.14.4-1.amzn2")) flag++;
if (rpm_check(release:"AL2", cpu:"x86_64", reference:"git-daemon-2.14.4-1.amzn2")) flag++;
if (rpm_check(release:"AL2", cpu:"x86_64", reference:"git-debuginfo-2.14.4-1.amzn2")) flag++;
if (rpm_check(release:"AL2", reference:"git-email-2.14.4-1.amzn2")) flag++;
if (rpm_check(release:"AL2", cpu:"x86_64", reference:"git-gnome-keyring-2.14.4-1.amzn2")) flag++;
if (rpm_check(release:"AL2", reference:"git-gui-2.14.4-1.amzn2")) flag++;
if (rpm_check(release:"AL2", reference:"git-p4-2.14.4-1.amzn2")) flag++;
if (rpm_check(release:"AL2", cpu:"x86_64", reference:"git-svn-2.14.4-1.amzn2")) flag++;
if (rpm_check(release:"AL2", reference:"gitk-2.14.4-1.amzn2")) flag++;
if (rpm_check(release:"AL2", reference:"gitweb-2.14.4-1.amzn2")) flag++;
if (rpm_check(release:"AL2", reference:"perl-Git-2.14.4-1.amzn2")) flag++;
if (rpm_check(release:"AL2", reference:"perl-Git-SVN-2.14.4-1.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, "git / git-all / git-core / git-core-doc / git-cvs / git-daemon / etc");
}
Vendor | Product | Version | CPE |
---|---|---|---|
amazon | linux | git | p-cpe:/a:amazon:linux:git |
amazon | linux | git-all | p-cpe:/a:amazon:linux:git-all |
amazon | linux | git-core | p-cpe:/a:amazon:linux:git-core |
amazon | linux | git-core-doc | p-cpe:/a:amazon:linux:git-core-doc |
amazon | linux | git-cvs | p-cpe:/a:amazon:linux:git-cvs |
amazon | linux | git-daemon | p-cpe:/a:amazon:linux:git-daemon |
amazon | linux | git-debuginfo | p-cpe:/a:amazon:linux:git-debuginfo |
amazon | linux | git-email | p-cpe:/a:amazon:linux:git-email |
amazon | linux | git-gnome-keyring | p-cpe:/a:amazon:linux:git-gnome-keyring |
amazon | linux | git-gui | p-cpe:/a:amazon:linux:git-gui |