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openvasCopyright (C) 2019 Greenbone AGOPENVAS:1361412562310844087
HistoryJul 10, 2019 - 12:00 a.m.

Ubuntu: Security Advisory (USN-4053-1)

2019-07-1000:00:00
Copyright (C) 2019 Greenbone AG
plugins.openvas.org
22

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

7.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

AI Score

7

Confidence

High

EPSS

0.039

Percentile

92.0%

The remote host is missing an update for the

# SPDX-FileCopyrightText: 2019 Greenbone AG
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(s).
#
# SPDX-License-Identifier: GPL-2.0-only

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.844087");
  script_cve_id("CVE-2019-12447", "CVE-2019-12448", "CVE-2019-12449", "CVE-2019-12795");
  script_tag(name:"creation_date", value:"2019-07-10 02:00:31 +0000 (Wed, 10 Jul 2019)");
  script_version("2024-02-02T05:06:07+0000");
  script_tag(name:"last_modification", value:"2024-02-02 05:06:07 +0000 (Fri, 02 Feb 2024)");
  script_tag(name:"cvss_base", value:"6.8");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:M/Au:N/C:P/I:P/A:P");
  script_tag(name:"severity_vector", value:"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H");
  script_tag(name:"severity_origin", value:"NVD");
  script_tag(name:"severity_date", value:"2019-05-29 22:57:02 +0000 (Wed, 29 May 2019)");

  script_name("Ubuntu: Security Advisory (USN-4053-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2019 Greenbone AG");
  script_family("Ubuntu Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/ubuntu_linux", "ssh/login/packages", re:"ssh/login/release=UBUNTU(16\.04\ LTS|18\.04\ LTS|18\.10|19\.04)");

  script_xref(name:"Advisory-ID", value:"USN-4053-1");
  script_xref(name:"URL", value:"https://ubuntu.com/security/notices/USN-4053-1");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'gvfs' package(s) announced via the USN-4053-1 advisory.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");

  script_tag(name:"insight", value:"It was discovered that GVfs incorrectly handled the admin backend. Files
created or moved by the admin backend could end up with the wrong ownership
information, contrary to expectations. This issue only affected Ubuntu
18.04 LTS, Ubuntu 18.10, and Ubuntu 19.04. (CVE-2019-12447, CVE-2019-12448,
CVE-2019-12449)

It was discovered that GVfs incorrectly handled authentication on its
private D-Bus socket. A local attacker could possibly connect to this
socket and issue D-Bus calls. (CVE-2019-12795)");

  script_tag(name:"affected", value:"'gvfs' package(s) on Ubuntu 16.04, Ubuntu 18.04, Ubuntu 18.10, Ubuntu 19.04.");

  script_tag(name:"solution", value:"Please install the updated package(s).");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"package");

  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-deb.inc");

release = dpkg_get_ssh_release();
if(!release)
  exit(0);

res = "";
report = "";

if(release == "UBUNTU16.04 LTS") {

  if(!isnull(res = isdpkgvuln(pkg:"gvfs", ver:"1.28.2-1ubuntu1~16.04.3", rls:"UBUNTU16.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"gvfs-backends", ver:"1.28.2-1ubuntu1~16.04.3", rls:"UBUNTU16.04 LTS"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

if(release == "UBUNTU18.04 LTS") {

  if(!isnull(res = isdpkgvuln(pkg:"gvfs", ver:"1.36.1-0ubuntu1.3.3", rls:"UBUNTU18.04 LTS"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"gvfs-backends", ver:"1.36.1-0ubuntu1.3.3", rls:"UBUNTU18.04 LTS"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

if(release == "UBUNTU18.10") {

  if(!isnull(res = isdpkgvuln(pkg:"gvfs", ver:"1.38.1-0ubuntu1.3.2", rls:"UBUNTU18.10"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"gvfs-backends", ver:"1.38.1-0ubuntu1.3.2", rls:"UBUNTU18.10"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

if(release == "UBUNTU19.04") {

  if(!isnull(res = isdpkgvuln(pkg:"gvfs", ver:"1.40.1-1ubuntu0.1", rls:"UBUNTU19.04"))) {
    report += res;
  }

  if(!isnull(res = isdpkgvuln(pkg:"gvfs-backends", ver:"1.40.1-1ubuntu0.1", rls:"UBUNTU19.04"))) {
    report += res;
  }

  if(report != "") {
    security_message(data:report);
  } else if(__pkg_match) {
    exit(99);
  }
  exit(0);
}

exit(0);

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

7.3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N

AI Score

7

Confidence

High

EPSS

0.039

Percentile

92.0%