Joern Schneeweisz and Nicolas Joly discovered that Git contained various security flaws. An attacker could possibly use these issues to overwrite arbitrary paths, execute arbitrary code, and overwrite files in the .git directory.
Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-4220-1. The text
# itself is copyright (C) Canonical, Inc. See
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered
# trademark of Canonical, Inc.
#
include('compat.inc');
if (description)
{
script_id(132015);
script_version("1.9");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/21");
script_cve_id(
"CVE-2019-1348",
"CVE-2019-1349",
"CVE-2019-1350",
"CVE-2019-1351",
"CVE-2019-1352",
"CVE-2019-1353",
"CVE-2019-1354",
"CVE-2019-1387",
"CVE-2019-19604"
);
script_xref(name:"USN", value:"4220-1");
script_name(english:"Ubuntu 16.04 LTS / 18.04 LTS : Git vulnerabilities (USN-4220-1)");
script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"Joern Schneeweisz and Nicolas Joly discovered that Git contained
various security flaws. An attacker could possibly use these issues to
overwrite arbitrary paths, execute arbitrary code, and overwrite files
in the .git directory.
Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/notices/USN-4220-1");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C");
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:H/I:H/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-2019-19604");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2019-1353");
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:"2019/12/11");
script_set_attribute(attribute:"patch_publication_date", value:"2019/12/10");
script_set_attribute(attribute:"plugin_publication_date", value:"2019/12/12");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:git");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:git-all");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:git-arch");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:git-core");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:git-cvs");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:git-daemon-run");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:git-daemon-sysvinit");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:git-el");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:git-email");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:git-gui");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:git-man");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:git-mediawiki");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:git-svn");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:gitk");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:gitweb");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04:-:lts");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-:lts");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Ubuntu Local Security Checks");
script_copyright(english:"Ubuntu Security Notice (C) 2019-2023 Canonical, Inc. / NASL script (C) 2019-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");
exit(0);
}
include('debian_package.inc');
if ( ! get_kb_item('Host/local_checks_enabled') ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/Ubuntu/release');
if ( isnull(os_release) ) audit(AUDIT_OS_NOT, 'Ubuntu');
os_release = chomp(os_release);
if (! ('16.04' >< os_release || '18.04' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 16.04 / 18.04', 'Ubuntu ' + os_release);
if ( ! get_kb_item('Host/Debian/dpkg-l') ) 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, 'Ubuntu', cpu);
var pkgs = [
{'osver': '16.04', 'pkgname': 'git', 'pkgver': '1:2.7.4-0ubuntu1.7'},
{'osver': '16.04', 'pkgname': 'git-all', 'pkgver': '1:2.7.4-0ubuntu1.7'},
{'osver': '16.04', 'pkgname': 'git-arch', 'pkgver': '1:2.7.4-0ubuntu1.7'},
{'osver': '16.04', 'pkgname': 'git-core', 'pkgver': '1:2.7.4-0ubuntu1.7'},
{'osver': '16.04', 'pkgname': 'git-cvs', 'pkgver': '1:2.7.4-0ubuntu1.7'},
{'osver': '16.04', 'pkgname': 'git-daemon-run', 'pkgver': '1:2.7.4-0ubuntu1.7'},
{'osver': '16.04', 'pkgname': 'git-daemon-sysvinit', 'pkgver': '1:2.7.4-0ubuntu1.7'},
{'osver': '16.04', 'pkgname': 'git-el', 'pkgver': '1:2.7.4-0ubuntu1.7'},
{'osver': '16.04', 'pkgname': 'git-email', 'pkgver': '1:2.7.4-0ubuntu1.7'},
{'osver': '16.04', 'pkgname': 'git-gui', 'pkgver': '1:2.7.4-0ubuntu1.7'},
{'osver': '16.04', 'pkgname': 'git-man', 'pkgver': '1:2.7.4-0ubuntu1.7'},
{'osver': '16.04', 'pkgname': 'git-mediawiki', 'pkgver': '1:2.7.4-0ubuntu1.7'},
{'osver': '16.04', 'pkgname': 'git-svn', 'pkgver': '1:2.7.4-0ubuntu1.7'},
{'osver': '16.04', 'pkgname': 'gitk', 'pkgver': '1:2.7.4-0ubuntu1.7'},
{'osver': '16.04', 'pkgname': 'gitweb', 'pkgver': '1:2.7.4-0ubuntu1.7'},
{'osver': '18.04', 'pkgname': 'git', 'pkgver': '1:2.17.1-1ubuntu0.5'},
{'osver': '18.04', 'pkgname': 'git-all', 'pkgver': '1:2.17.1-1ubuntu0.5'},
{'osver': '18.04', 'pkgname': 'git-cvs', 'pkgver': '1:2.17.1-1ubuntu0.5'},
{'osver': '18.04', 'pkgname': 'git-daemon-run', 'pkgver': '1:2.17.1-1ubuntu0.5'},
{'osver': '18.04', 'pkgname': 'git-daemon-sysvinit', 'pkgver': '1:2.17.1-1ubuntu0.5'},
{'osver': '18.04', 'pkgname': 'git-el', 'pkgver': '1:2.17.1-1ubuntu0.5'},
{'osver': '18.04', 'pkgname': 'git-email', 'pkgver': '1:2.17.1-1ubuntu0.5'},
{'osver': '18.04', 'pkgname': 'git-gui', 'pkgver': '1:2.17.1-1ubuntu0.5'},
{'osver': '18.04', 'pkgname': 'git-man', 'pkgver': '1:2.17.1-1ubuntu0.5'},
{'osver': '18.04', 'pkgname': 'git-mediawiki', 'pkgver': '1:2.17.1-1ubuntu0.5'},
{'osver': '18.04', 'pkgname': 'git-svn', 'pkgver': '1:2.17.1-1ubuntu0.5'},
{'osver': '18.04', 'pkgname': 'gitk', 'pkgver': '1:2.17.1-1ubuntu0.5'},
{'osver': '18.04', 'pkgname': 'gitweb', 'pkgver': '1:2.17.1-1ubuntu0.5'}
];
var flag = 0;
foreach package_array ( pkgs ) {
var osver = NULL;
var pkgname = NULL;
var pkgver = NULL;
if (!empty_or_null(package_array['osver'])) osver = package_array['osver'];
if (!empty_or_null(package_array['pkgname'])) pkgname = package_array['pkgname'];
if (!empty_or_null(package_array['pkgver'])) pkgver = package_array['pkgver'];
if (osver && pkgname && pkgver) {
if (ubuntu_check(osver:osver, pkgname:pkgname, pkgver:pkgver)) flag++;
}
}
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : ubuntu_report_get()
);
exit(0);
}
else
{
var tested = ubuntu_pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'git / git-all / git-arch / git-core / git-cvs / git-daemon-run / etc');
}
Vendor | Product | Version | CPE |
---|---|---|---|
canonical | ubuntu_linux | git | p-cpe:/a:canonical:ubuntu_linux:git |
canonical | ubuntu_linux | git-all | p-cpe:/a:canonical:ubuntu_linux:git-all |
canonical | ubuntu_linux | git-arch | p-cpe:/a:canonical:ubuntu_linux:git-arch |
canonical | ubuntu_linux | git-core | p-cpe:/a:canonical:ubuntu_linux:git-core |
canonical | ubuntu_linux | git-cvs | p-cpe:/a:canonical:ubuntu_linux:git-cvs |
canonical | ubuntu_linux | git-daemon-run | p-cpe:/a:canonical:ubuntu_linux:git-daemon-run |
canonical | ubuntu_linux | git-daemon-sysvinit | p-cpe:/a:canonical:ubuntu_linux:git-daemon-sysvinit |
canonical | ubuntu_linux | git-el | p-cpe:/a:canonical:ubuntu_linux:git-el |
canonical | ubuntu_linux | git-email | p-cpe:/a:canonical:ubuntu_linux:git-email |
canonical | ubuntu_linux | git-gui | p-cpe:/a:canonical:ubuntu_linux:git-gui |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1348
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1349
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1350
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1351
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1352
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1353
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1354
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-1387
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19604
ubuntu.com/security/notices/USN-4220-1