Debian DLA-2059-1 : git security update

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-2059-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(133218);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/29");

  script_cve_id(
    "CVE-2019-1348",
    "CVE-2019-1349",
    "CVE-2019-1352",
    "CVE-2019-1353",
    "CVE-2019-1387"
  );

  script_name(english:"Debian DLA-2059-1 : git security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"Several vulnerabilities have been discovered in git, a fast, scalable,
distributed revision control system.

CVE-2019-1348

It was reported that the --export-marks option of git fast-import is
exposed also via the in-stream command feature export-marks=...,
allowing to overwrite arbitrary paths.

CVE-2019-1387

It was discovered that submodule names are not validated strictly
enough, allowing very targeted attacks via remote code execution when
performing recursive clones.

In addition this update addresses a number of security issues which
are only an issue if git is operating on an NTFS filesystem
(CVE-2019-1349, CVE-2019-1352 and CVE-2019-1353).

For Debian 8 'Jessie', these problems have been fixed in version
1:2.1.4-2.1+deb8u8.

We recommend that you upgrade your git packages.

NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA 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://lists.debian.org/debian-lts-announce/2020/01/msg00019.html");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/jessie/git");
  script_set_attribute(attribute:"solution", value:
"Upgrade 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: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:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-1352");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2019-1353");

  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:"2019/12/18");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/01/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/01/24");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:git");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:git-all");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:git-arch");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:git-core");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:git-cvs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:git-daemon-run");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:git-daemon-sysvinit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:git-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:git-el");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:git-email");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:git-gui");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:git-man");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:git-mediawiki");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:git-svn");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:gitk");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:gitweb");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Debian Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"8.0", prefix:"git", reference:"1:2.1.4-2.1+deb8u8")) flag++;
if (deb_check(release:"8.0", prefix:"git-all", reference:"1:2.1.4-2.1+deb8u8")) flag++;
if (deb_check(release:"8.0", prefix:"git-arch", reference:"1:2.1.4-2.1+deb8u8")) flag++;
if (deb_check(release:"8.0", prefix:"git-core", reference:"1:2.1.4-2.1+deb8u8")) flag++;
if (deb_check(release:"8.0", prefix:"git-cvs", reference:"1:2.1.4-2.1+deb8u8")) flag++;
if (deb_check(release:"8.0", prefix:"git-daemon-run", reference:"1:2.1.4-2.1+deb8u8")) flag++;
if (deb_check(release:"8.0", prefix:"git-daemon-sysvinit", reference:"1:2.1.4-2.1+deb8u8")) flag++;
if (deb_check(release:"8.0", prefix:"git-doc", reference:"1:2.1.4-2.1+deb8u8")) flag++;
if (deb_check(release:"8.0", prefix:"git-el", reference:"1:2.1.4-2.1+deb8u8")) flag++;
if (deb_check(release:"8.0", prefix:"git-email", reference:"1:2.1.4-2.1+deb8u8")) flag++;
if (deb_check(release:"8.0", prefix:"git-gui", reference:"1:2.1.4-2.1+deb8u8")) flag++;
if (deb_check(release:"8.0", prefix:"git-man", reference:"1:2.1.4-2.1+deb8u8")) flag++;
if (deb_check(release:"8.0", prefix:"git-mediawiki", reference:"1:2.1.4-2.1+deb8u8")) flag++;
if (deb_check(release:"8.0", prefix:"git-svn", reference:"1:2.1.4-2.1+deb8u8")) flag++;
if (deb_check(release:"8.0", prefix:"gitk", reference:"1:2.1.4-2.1+deb8u8")) flag++;
if (deb_check(release:"8.0", prefix:"gitweb", reference:"1:2.1.4-2.1+deb8u8")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");